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 4554 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
REJ03B0043-0300Z Rev.3.00 Aug 06, 2004
DESCRIPTION
The 4554 Group is a 4-bit single-chip microcomputer designed with CMOS technology. Its CPU is that of the 4500 series using a simple, high-speed instruction set. The computer is equipped with main clock selection function, four 8-bit timers (each timer has one or two reload registers), interrupts, and LCD control circuit. The various microcomputers in the 4554 Group include variations of the built-in memory size as shown in the table below.
FEATURES
qMinimum instruction execution time .................................. 0.5 s (at 6 MHz oscillation frequency, in high-speed through-mode) qSupply voltage Mask ROM version ...................................................... 2.0 to 5.5 V One Time PROM version ............................................. 2.5 to 5.5 V (It depends on oscillation frequency and operation mode) qTimers Timer 1 ...................................... 8-bit timer with a reload register Timer 2 ...................................... 8-bit timer with a reload register Timer 3 ...................................... 8-bit timer with a reload register Timer 4 ................................. 8-bit timer with two reload registers Timer 5 .............................. 16-bit timer (fixed dividing frequency)
qInterrupt ........................................................................ 7 sources qKey-on wakeup function pins ................................................... 10 q LCD control circuit Segment output ........................................................................ 32 Common output .......................................................................... 4 qVoltage drop detection circuit (Reset) ......................... Typ. 1.5 V qWatchdog timer qClock generating circuit Main clock (ceramic resonator/RC oscillation/on-chip oscillator) Sub-clock (quartz-crystal oscillation) qLED drive directly enabled (port D)
APPLICATION
Remot control transmitter
Part number M34554M8-XXXFP M34554MC-XXXFP M34554EDFP (Note)
Note: Shipped in blank.
ROM (PROM) size ( 10 bits) 8192 words 12288 words 16384 words
RAM size ( 4 bits) 512 words 512 words 512 words
Package 64P6N-A 64P6N-A 64P6N-A
ROM type Mask ROM Mask ROM One Time PROM
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
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4554 Group
PIN CONFIGURATION
COM0
COM1
COM2
COM3
P00
P01
P02
P03
P10
P11
P12
P13
D0
D1
D2
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 SEG0/VLC3 SEG1/VLC2 SEG2/VLC1 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 D4 D5 D6 CNVSS VDCE XCIN XCOUT VDD VSS XOUT XIN RESET D7/CNTR0 C/CNTR1 D8/INT0 D9/INT1
M34554Mx-XXXFP M34554EDFP
D3
25 24 23 22 21 20 19 18 17
SEG24/P33
SEG25/P32
SEG26/P31
SEG27/P30
SEG28/P23
SEG29/P22
SEG30/P21
OUTLINE 64P6N-A
Pin configuration (top view) (4554 Group)
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
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SEG31/P20
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
4554 Group
4 4 4 4
Block diagram (4554 Group)
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
I/O port
Port P0 Port P1 Port P3 Port P2
Internal peripheral functions
System clock generation circuit XIN -XOUT (Main clock) XCIN -XCOUT (Sub-clock) Power-on reset circuit Voltage drop detection circuit
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Timer
Timer 1(8 bits) Timer 2(8 bits) Timer 3(8 bits) Timer 4(8 bits) Timer 5(16 bits)
Watchdog timer (16 bits)
Memory
ROM
8192, 12288, 16384 words 10 bits
4500 series CPU core
ALU(4 bits)
Register A (4 bits) Register B (4 bits) Register E (8 bits) Register D (3 bits) Stack register SK (8 levels) Interrupt stack register SDP (1 level)
LCD drive control circuit (Max.32 segments 4 common)
RAM
512 words 4 bits LCD display RAM including 32 words 4 bits
Segment output 4
Common output
Port C 1
Port D 2 8
32
4554 Group
PERFORMANCE OVERVIEW
Parameter Number of basic instructions Minimum instruction execution time Memory sizes ROM M34554M8 M34554MC M34554ED RAM Input/Output D0-D7 I/O ports Function 136 0.5 s (at 6 MHz oscillation frequency, in high-speed through mode) 8192 words 10 bits 12288 words 10 bits 16384 words 10 bits 512 words 4 bits (including LCD display RAM 32 words 4 bits) Eight independent I/O ports. Input is examined by skip decision. The output structure can be switched by software. Port D7 is also used as CNTR0 pin. Two independent output ports. Ports D8 and D9 are also used as INT0 and INT1, respectively. 4-bit I/O port; A pull-up function, a key-on wakeup function and output structure can be switched by software. 4-bit I/O port; A pull-up function, a key-on wakeup function and output structure can be switched by software. 4-bit input port; Port P20-P23 are also used as SEG31-SEG28 pins. 4-bit input port; Port P30-P33 are also used as SEG27-SEG24 pins. 1-bit output; Port C is also used as CNTR1 pin. 8-bit programmable timer with a reload register and has an event counter. 8-bit programmable timer with a reload register. 8-bit programmable timer with a reload register and has an event counter. 8-bit programmable timer with two reload registers. 16-bit timer, fixed dividing frequency 1/2, 1/3 bias 2, 3, 4 duty 4 32 2r 3, 2r 2, r 3, r 2 (they can be switched by software.) 7 (two for external, five for timer) 1 level 8 levels CMOS silicon gate 64-pin plastic molded QFP (64P6N) -20 C to 85 C 2 to 5.5 V (It depends on the operation source clock, operation mode and oscillation frequency.) 2.5 to 5.5 V (It depends on the operation source clock, operation mode and oscillation frequency.) 2.8 mA (Ta=25C, VDD = 5 V, f(XIN) = 6 MHz, f(XCIN) = 32 kHz, f(STCK) = f(XIN)) 20 A (Ta=25C, VDD = 5 V, f(XCIN) = 32 kHz) 0.1 A (Ta=25C, VDD = 5 V)
D8, D9
Output
P00-P03 I/O P10-P13 I/O P20-P23 Input P30-P33 Input C Output Timers Timer 1 Timer 2 Timer 3 Timer 4 Timer 5 LCD control Selective bias value circuit Selective duty value Common output Segment output Internal resistor for power supply Interrupt Sources Nesting Subroutine nesting Device structure Package Operating temperature range Supply Mask ROM version voltage One Time PROM version Power Active mode dissipation Clock operating mode At RAM back-up
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4554 Group
PIN DESCRIPTION
Pin VDD VSS CNVSS VDCE Name Power supply Ground CNVSS Voltage drop detection circuit enable Reset input/output Input/Output -- -- -- Input Function Connected to a plus power supply. Connected to a 0 V power supply. Connect CNVSS to VSS and apply "L" (0V) to CNVSS certainly. This pin is used to operate/stop the voltage drop detection circuit. When "H" level is input to this pin, the circuit starts operating. When "L" level is input to this pin, the circuit stops operating. An N-channel open-drain I/O pin for a system reset. When the watchdog timer, the built-in power-on reset or the voltage drop detection circuit causes the system to be reset, the RESET pin outputs "L" level. I/O pins of the main clock generating circuit. When using a ceramic resonator, connect it between pins XIN and XOUT. A feedback resistor is built-in between them. When using the RC oscillation, connect a resistor and a capacitor to XIN, and leave XOUT pin open. I/O pins of the sub-clock generating circuit. Connect a 32 kHz quartz-crystal oscillator between pins XCIN and XCOUT. A feedback resistor is built-in between them. Each pin of port D has an independent 1-bit wide I/O function. The output structure can be switched to N-channel open-drain or CMOS by software. For input use, set the latch of the specified bit to "1" and select the N-channel open-drain. Port D7 is also used as CNTR0 pin. Each pin of port D has an independent 1-bit wide output function. The output structure is N-channel open-drain. Ports D8 and D9 are also used as INT0 pin and INT1 pin, respectively. Port P0 serves as a 4-bit I/O port. The output structure can be switched to N-channel open-drain or CMOS by software. For input use, set the latch of the specified bit to "1" and select the N-channel open-drain. Port P0 has a key-on wakeup function and a pull-up function. Both functions can be switched by software. Port P1 serves as a 4-bit I/O port. The output structure can be switched to N-channel open-drain or CMOS by software. For input use, set the latch of the specified bit to "1" and select the N-channel open-drain. Port P1 has a key-on wakeup function and a pull-up function. Both functions can be switched by software. Port P2 serves as a 4-bit input port. Ports P20-P23 are also used as SEG31-SEG28, respectively. Port P3 serves as a 4-bit input port. Ports P30-P33 are also used as SEG27-SEG24, respectively. 1-bit output port. The output structure is CMOS. Port C is also used as CNTR1 pin. LCD common output pins. Pins COM0 and COM1 are used at 1/2 duty, pins COM0- COM2 are used at 1/3 duty and pins COM0-COM3 are used at 1/4 duty. LCD segment output pins. SEG0-SEG2 pins are used as VLC3-VLC1 pins, respectively. LCD power supply pins. When the internal resistor is used, VDD pin is connected to VLC3 pin (if luminance adjustment is required, VDD pin is connected to VLC3 pin through a resistor). When the external power supply is used, apply the voltage 0 VLC1 VLC2 VLC3 VDD. VLC3-VLC1 pins are used as SEG0-SEG2 pins, respectively. CNTR0 pin has the function to input the clock for the timer 1 event counter, and to output the timer 1 or timer 2 underflow signal divided by 2. CNTR1 pin has the function to input the clock for the timer 3 event counter, and to output the PWM signal generated by timer 4.CNTR0 pin and CNTR1 pin are also used as Ports D7 and C, respectively. INT0 pin and INT1 pin accept external interrupts. They have the key-on wakeup function which can be switched by software. INT0 pin and INT1 pin are also used as Ports D8 and D9, respectively.
RESET
I/O
XIN XOUT XCIN XCOUT D0-D7
Main clock input Main clock output Sub-clock input Sub-clock output I/O port D Input is examined by skip decision. Output port D
Input Output Input Output I/O
D8, D9
Output
P00-P03
I/O port P0
I/O
P10-P13
I/O port P1
I/O
P20-P23 P30-P33 Port C COM0- COM3 SEG0-SEG31 VLC3-VLC1
Input port P2 Input port P3 Output port C Common output Segment output LCD power supply
Input Input Output Output Output -
CNTR0, CNTR1
Timer input/output
I/O
INT0, INT1
Interrupt input
Input
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4554 Group
MULTIFUNCTION
Pin C D7 D8 D9 VLC3 VLC2 VLC1 Multifunction CNTR1 CNTR0 INT0 INT1 SEG0 SEG1 SEG2 Pin CNTR1 CNTR0 INT0 INT1 SEG0 SEG1 SEG2 Multifunction C D7 D8 D9 VLC3 VLC2 VLC1 Pin P20 P21 P22 P23 P30 P31 P32 P33 Multifunction SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 Pin SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 Multifunction P20 P21 P22 P23 P30 P31 P32 P33
Notes 1: Pins except above have just single function. 2: The output of D8 and D9 can be used even when INT0 and INT1 are selected. 3: The input/output of D7 can be used even when CNTR0 (input) is selected. 4: The input of D7 can be used even when CNTR0 (output) is selected. 5: The port C "H" output function can be used even when CNTR1 (output) is selected.
DEFINITION OF CLOCK AND CYCLE
q Operation source clock The operation source clock is the source clock to operate this product. In this product, the following clocks are used. * Clock (f(XIN)) by the external ceramic resonator * Clock (f(XIN)) by the external RC oscillation * Clock (f(XIN)) by the external input * Clock (f(RING)) of the on-chip oscillator which is the internal oscillator * Clock (f(XCIN)) by the external quartz-crystal oscillation Table Selection of system clock Register MR System clock MR3 MR2 MR1 MR0 0 0 0 0 f(STCK) = f(XIN) or f(RING) 0 or 1 1 f(STCK) = f(XCIN) 0 1 0 0 f(STCK) = f(XIN)/2 or f(RING)/2 0 or 1 1 f(STCK) = f(XCIN)/2 1 0 0 0 f(STCK) = f(XIN)/4 or f(RING)/4 0 or 1 1 f(STCK) = f(XCIN)/4 1 1 0 0 f(STCK) = f(XIN)/8 or f(RING)/8 0 or 1 1 f(STCK) = f(XCIN)/8 Note: The f(RING)/8 is selected after system is released from reset.
q System clock (STCK) The system clock is the basic clock for controlling this product. The system clock is selected by the clock control register MR shown as the table below. q Instruction clock (INSTCK) The instruction clock is the basic clock for controlling CPU. The instruction clock (INSTCK) is a signal derived by dividing the system clock (STCK) by 3. The one instruction clock cycle generates the one machine cycle. q Machine cycle The machine cycle is the standard cycle required to execute the instruction. Operation mode High-speed through mode Low-speed through mode High-speed frequency divided by 2 mode Low-speed frequency divided by 2 mode High-speed frequency divided by 4 mode Low-speed frequency divided by 4 mode High-speed frequency divided by 8 mode Low-speed frequency divided by 8 mode
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4554 Group
PORT FUNCTION
Port Port D Pin D0-D6, D7/CNTR0 Input Output I/O (8) Output (2) I/O (4) I/O (4) Input (4) Input (4) Output (1) Output structure N-channel open-drain/ CMOS N-channel open-drain N-channel open-drain/ CMOS N-channel open-drain/ CMOS 4 OP0A IAP0 OP1A IAP1 IAP2 IAP3 RCP SCP I/O unit 1 Control instructions SD, RD SZD CLD Control registers FR1, FR2 W6 I1, I2 K2 FR0 PU0 K0 FR0 PU1 K1 L3 L3 W4 Remark Output structure selection function (programmable) Key-on wakeup function (programmable) Built-in programmable pull-up functions and key-on wakeup functions (programmable) Built-in programmable pull-up functions and key-on wakeup functions (programmable)
D8/INT0, D9/INT1 Port P0 P00-P03
Port P1 P10-P13
4
Port P2 SEG31/P20-SEG28/P23 Port P3 SEG27/P30-SEG24/P33 Port C C/CNTR1
4 4 CMOS 1
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4554 Group
CONNECTIONS OF UNUSED PINS
Pin XIN Connection Connect to VSS. Usage condition Internal oscillator is selected (CMCK and CRCK instructions are not executed.) (Note 1) Sub-clock input is selected for system clock (MR0=1). (Note 2) Internal oscillator is selected (CMCK and CRCK instructions are not executed.) (Note 1) RC oscillator is selected (CRCK instruction is executed) External clock input is selected for main clock (CMCK instruction is executed). (Note 3) Sub-clock input is selected for system clock (MR0=1). (Note 2) Sub-clock is not used. Sub-clock is not used. External clock input is selected for sub-clock. (Note 4) N-channel open-drain is selected for the output structure. CNTR0 input is not selected for timer 1 count source. N-channel open-drain is selected for the output structure. "0" is set to output latch. "0" is set to output latch. CNTR1 input is not selected for timer 3 count source. The key-on wakeup function is not selected. (Note 4) N-channel open-drain is selected for the output structure. (Note 5) The pull-up function is not selected. (Note 4) The key-on wakeup function is not selected. (Note 4) The key-on wakeup function is not selected. (Note 4) N-channel open-drain is selected for the output structure. (Note 5) The pull-up function is not selected. (Note 4) The key-on wakeup function is not selected. (Note 4) Ports P20-P23 selected. Ports P30-P33 selected. SEG0 pin is selected. SEG1 pin is selected. SEG2 pin is selected.
XOUT
Open.
XCIN XCOUT D0-D6 D7/CNTR0 D8/INT0 D9/INT1 C/CNTR1 P00-P03
Connect to VSS. Open. Open. Connect to VSS. Open. Connect to VSS. Open. Connect to VSS. Open. Connect to VSS. Open. Open. Connect to Vss.
P10-P13
Open. Connect to Vss.
SEG31/P20- SEG28/P23 SEG27/P30- SEG24/P33 COM0-COM3 SEG0/VLC3 SEG1/VLC2 SEG2/VLC1 SEG3-SEG23
Open. Connect to Vss. Open. Connect to Vss. Open. Open. Open. Open. Open.
Notes 1: When the CMCK and CRCK instructions are not executed, the internal oscillation (on-chip oscillator) is selected for main clock. 2: When sub-clock (XCIN) input is selected (MR0 = 1) for the system clock by setting "1" to bit 1 (MR1) of clock control register MR, main clock is stopped. 3: Select the ceramic resonance by executing the CMCK instruction to use the external clock input for the main clock. 4: Be sure to select the output structure of ports D0-D6 and the pull-up function and key-on wakeup function of P00-P03 and P10-P13 with every one port. Set the corresponding bits of registers for each port. 5: Be sure to select the output structure of ports P00-P03 and P10-P13 with every two ports. If only one of the two pins is used, leave another one open. (Note when connecting to VSS and VDD) q Connect the unused pins to VSS and VDD using the thickest wire at the shortest distance against noise.
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4554 Group
PORT BLOCK DIAGRAMS
Clock (input) for timer 3 event count W31 PWMOD W30 (Note 1) C/CNTR1 SCP instruction RCP instruction SQ R D Q R T W61 Timer 3 underflow signal (Notes 2 and 3)
W32
Register Y
Decoder
Skip decision (SZD instruction) FR10 (Note 1) S D0 (Note 2)
CLD instruction SD instruction RD instruction
RQ Skip decision (SZD instruction) FR11 (Note 1) S D1 (Note 2)
Register Y
Decoder
CLD instruction SD instruction RD instruction
RQ Skip decision (SZD instruction) FR12 (Note 1) S D2 (Note 2)
Register Y
Decoder
CLD instruction SD instruction RD instruction
RQ
Register Y
Decoder
Skip decision (SZD instruction) FR13 (Note 1) S D3 (Note 2)
CLD instruction SD instruction RD instruction
RQ
This symbol represents a parasitic diode on the port. Notes 1: 2: Applied potential to these ports must be VDD or less. 3: When CNTR1 input is selected, output transistor is turned OFF.
Port block diagram (1)
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
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4554 Group
Regisger Y
Decoder
Skip decision (SZD instruction) FR20 (Note 1) S RQ Skip decision (SZD instruction) FR21 (Note 1) S RQ Skip decision (SZD instruction) FR22 (Note 1) S RQ D6 (Note 2) D5 (Note 2) D4 (Note 2)
CLD instruction SD instruction RD instruction
Regisger Y
Decoder
CLD instruction SD instruction RD instruction
Regisger Y
Decoder
CLD instruction SD instruction RD instruction
This symbol represents a parasitic diode on the port. Notes 1: 2: Applied potential to these ports must be VDD or less.
Port block diagram (2)
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
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4554 Group
Register Y
Decoder CLD instruction S
Skip decision (SZD instruction)) FR23 (Note 1) W60 RQ
0 1
SD instruction RD instruction
D7/CNTR0 (Note 2)
Underflow signal divided by 2 of timer 1 or timer 2 Clock (input) for timer 1 event count
W11 W10
Timer 1 count start synchronous circuit input Key-on wakeup External 0 interrupt Register Y Decoder CLD instruction SD instruction RD instruction Timer 3 count start synchronous circuit input Key-on wakeup External 1 interrupt Register Y Decoder CLD instruction SD instruction RD instruction RQ (Note 1) S D9/INT1 (Note 2) (Note 3) External 1 interrupt circuit (Note 1) S RQ D8/INT0 (Note 2) (Note 3) External 0 interrupt circuit
Notes 1: This symbol represents a parasitic diode on the port. 2: Applied potential to these ports must be VDD or less. 3: As for details, refer to the description of external interrupt circuit.
Port block diagram (3)
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4554 Group
IAP0 instruction Register A A0 FR00
Pull-up transistor
PU00
(Note 1) A0 OP0A instruction D TQ K00 Key-on wakeup "L" level detection circuit P00 (Note 2)
IAP0 instruction Register A A1 FR00
Pull-up transistor
PU01
(Note 1) A1 OP0A instruction D TQ K01 Key-on wakeup "L" level detection circuit P01 (Note 2)
Register A A2
IAP0 instruction
Pull-up transistor
PU02
FR01 A2 OP0A instruction D TQ K02 Key-on wakeup "L" level detection circuit (Note 1) P02 (Note 2)
Register A A3
IAP0 instruction
Pull-up transistor
PU03
FR01 A3 OP0A instruction D TQ K03 Key-on wakeup "L" level detection circuit (Note 1) P03 (Note 2)
Notes 1: This symbol represents a parasitic diode on the port. 2: Applied potential to these ports must be VDD or less.
Port block diagram (4)
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4554 Group
IAP1 instruction Register A A0 FR02
Pull-up transistor
PU10
(Note 1) A0 OP1A instuction D TQ K10 Key-on wakeup "L" level detection circuit
Pull-up transistor
P10 (Note 2)
IAP1 instruction Register A A1 FR02
PU11
(Note 1) A1 OP1A instuction D TQ K11 Key-on wakeup "L" level detection circuit
Pull-up transistor
P11 (Note 2)
IAP1 instruction Register A A2 FR03
PU12
(Note 1) A2 OP1A instuction D TQ K12 Key-on wakeup "L" level detection circuit
Pull-up transistor
P12 (Note 2)
IAP1 instruction Register A A3 FR03
PU13
(Note 1) A3 OP1A instuction D TQ K13 Key-on wakeup "L" level detection circuit P13 (Note 2)
Notes 1: This symbol represents a parasitic diode on the port. 2: Applied potential to these ports must be VDD or less.
Port block diagram (5)
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4554 Group
LCD power supply LCD control signal
Connecting to * when P2 is selected.
(Note 1) SEG31/P20 (Note 2)
IAP2 instruction Register A A0
L30 LCD power supply
LCD power supply LCD control signal
Connecting to * when P2 is selected.
(Note 1) SEG30/P21 (Note 2)
IAP2 instruction Register A A1
L31 LCD power supply
LCD power supply LCD control signal
Connecting to * when P2 is selected.
(Note 1) SEG29/P22, SEG28/P23 (Note 2)
Register A (Note 3) AI
IAP2 instruction
L32 LCD power supply
LCD power supply LCD control signal
Connecting to * when P3 is selected.
(Note 1) SEG27/P30 -SEG24/P33
IAP3 instruction Register A (Note 4)Aj
L33 LCD power supply
(Note 2)
Notes 1: This symbol represents a parasitic diode on the port. 2: Applied potential to these ports must be VDD or less. 3: i represents 0, 1. 4: j represents 0 to 3.
Port block diagram (6)
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4554 Group
LCD power supply LCD control signal
Connecting to * when VLC is selected.
(Note 1) SEG0/VLC3 (Notes 2 and 3) VDD L23 LCD power supply
LCD power supply (VLC3/VDD)
LCD power supply LCD control signal
Connecting to * when VLC is selected.
(Note 1) SEG1/VLC2 (Note 2) L22 LCD power supply LCD power supply L11 LCD control signal
LCD power supply (VLC2)
Connecting to * when VLC is selected.
(Note 1) SEG2/VLC1 (Note 2) L21 LCD power supply
LCD power supply (VLC1)
L13 L20 Reset signal L12 EPOF+POF2 instruction (Continuous execution)
Notes 1: This symbol represents a parasitic diode on the port. 2: Applied potential when VLC is selected must be as follows; * VDD VLC3 VLC2 VLC1 3: VLC3 = VDD when SEG is selected.
Port block diagram (7)
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4554 Group
LCD power supply LCD control signal
Pch
SEG3-SEG23
Nch
LCD control signal LCD power supply
LCD power supply LCD control signal
Pch
COM0-COM3
Pch
LCD control signal LCD power supply LCD power supply LCD control signal
Nch
Nch
LCD control signal
Port block diagram (8)
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4554 Group
FUNCTION BLOCK OPERATIONS CPU (1) Arithmetic logic unit (ALU)
The arithmetic logic unit ALU performs 4-bit arithmetic such as 4bit data addition, comparison, AND operation, OR operation, and bit manipulation.
(CY) (M(DP)) Addition (A)
Fig. 1 AMC instruction execution example
ALU
(2) Register A and carry flag
Register A is a 4-bit register used for arithmetic, transfer, exchange, and I/O operation. Carry flag CY is a 1-bit flag that is set to "1" when there is a carry with the AMC instruction (Figure 1). It is unchanged with both A n instruction and AM instruction. The value of A0 is stored in carry flag CY with the RAR instruction (Figure 2). Carry flag CY can be set to "1" with the SC instruction and cleared to "0" with the RC instruction.
SC instruction
RC instruction
CY
A3 A2 A1 A0 RAR instruction
(3) Registers B and E
Register B is a 4-bit register used for temporary storage of 4-bit data, and for 8-bit data transfer together with register A. Register E is an 8-bit register. It can be used for 8-bit data transfer with register B used as the high-order 4 bits and register A as the low-order 4 bits (Figure 3). Register E is undefined after system is released from reset and returned from the RAM back-up. Accordingly, set the initial value.
A0
CY A3 A2 A1
Fig. 2 RAR instruction execution example
Register B
TAB instruction
Register A
B3 B2 B1 B0
A3 A2 A1 A0
(4) Register D
Register D is a 3-bit register. It is used to store a 7-bit ROM address together with register A and is used as a pointer within the specified page when the TABP p, BLA p, or BMLA p instruction is executed (Figure 4). Register D is undefined after system is released from reset and returned from the RAM back-up. Accordingly, set the initial value.
TEAB instruction Register E E7 E6 E5 E4 E3 E2 E1 E0 TABE instruction B3 B2 B1 B0 Register B A3 A2 A1 A0 Register A
TBA instruction
Fig. 3 Registers A, B and register E
TABP p instruction Specifying address
ROM 8 4 0
PCH p6 p5 p4 p3 p2 p1 p0
PCL DR2DR1DR0 A3 A2 A1 A0
Low-order 4bits Register A (4) Middle-order 4 bits Register B (4)
Immediate field value p
The contents of The contents of register D register A
Fig. 4 TABP p instruction execution example
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4554 Group
(5) Stack registers (SKS) and stack pointer (SP)
Stack registers (SKs) are used to temporarily store the contents of program counter (PC) just before branching until returning to the original routine when; * branching to an interrupt service routine (referred to as an interrupt service routine), * performing a subroutine call, or * executing the table reference instruction (TABP p). Stack registers (SKs) are eight identical registers, so that subroutines can be nested up to 8 levels. However, one of stack registers is used respectively when using an interrupt service routine and when executing a table reference instruction. Accordingly, be careful not to over the stack when performing these operations together. The contents of registers SKs are destroyed when 8 levels are exceeded. The register SK nesting level is pointed automatically by 3-bit stack pointer (SP). The contents of the stack pointer (SP) can be transferred to register A with the TASP instruction. Figure 5 shows the stack registers (SKs) structure. Figure 6 shows the example of operation at subroutine call.
Program counter (PC) Executing BM instruction SK0 SK1 SK2 SK3 SK4 SK5 SK6 SK7 Executing RT instruction (SP) = 0 (SP) = 1 (SP) = 2 (SP) = 3 (SP) = 4 (SP) = 5 (SP) = 6 (SP) = 7
Stack pointer (SP) points "7" at reset or returning from RAM back-up mode. It points "0" by executing the first BM instruction, and the contents of program counter is stored in SK0. When the BM instruction is executed after eight stack registers are used ((SP) = 7), (SP) = 0 and the contents of SK0 is destroyed.
Fig. 5 Stack registers (SKs) structure
(6) Interrupt stack register (SDP)
Interrupt stack register (SDP) is a 1-stage register. When an interrupt occurs, this register (SDP) is used to temporarily store the contents of data pointer, carry flag, skip flag, register A, and register B just before an interrupt until returning to the original routine. Unlike the stack registers (SKs), this register (SDP) is not used when executing the subroutine call instruction and the table reference instruction.
(SP) 0 (SK0) 000116 (PC) SUB1
Main program Address 000016 NOP 000116 BM SUB1 000216 NOP
Subroutine
SUB1 : NOP * * * RT
(7) Skip flag
Skip flag controls skip decision for the conditional skip instructions and continuous described skip instructions. When an interrupt occurs, the contents of skip flag is stored automatically in the interrupt stack register (SDP) and the skip condition is retained.
(PC) (SK0) (SP) 7
Note : Returning to the BM instruction execution address with the RT instruction, and the BM instruction becomes the NOP instruction.
Fig. 6 Example of operation at subroutine call
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(8) Program counter (PC)
Program counter (PC) is used to specify a ROM address (page and address). It determines a sequence in which instructions stored in ROM are read. It is a binary counter that increments the number of instruction bytes each time an instruction is executed. However, the value changes to a specified address when branch instructions, subroutine call instructions, return instructions, or the table reference instruction (TABP p) is executed. Program counter consists of PCH (most significant bit to bit 7) which specifies to a ROM page and PCL (bits 6 to 0) which specifies an address within a page. After it reaches the last address (address 127) of a page, it specifies address 0 of the next page (Figure 7). Make sure that the PCH does not specify after the last page of the built-in ROM.
Program counter p6 p5 p4 p3 p2 p1 p0 a6 a5 a4 a3 a2 a1 a0
PCH Specifying page
PCL Specifying address
Fig. 7 Program counter (PC) structure
Data pointer (DP) Z1 Z0 X3 X2 X1 X0 Y3 Y2 Y1 Y0
(9) Data pointer (DP)
Data pointer (DP) is used to specify a RAM address and consists of registers Z, X, and Y. Register Z specifies a RAM file group, register X specifies a file, and register Y specifies a RAM digit (Figure 8). Register Y is also used to specify the port D bit position. When using port D, set the port D bit position to register Y certainly and execute the SD, RD, or SZD instruction (Figure 9). * Note Register Z of data pointer is undefined after system is released from reset. Also, registers Z, X and Y are undefined in the RAM back-up. After system is returned from the RAM back-up, set these registers.
Register Y (4)
Specifying RAM digit
Register X (4)
Specifying RAM file
Register Z (2)
Specifying RAM file group
Fig. 8 Data pointer (DP) structure
Specifying bit position Set
D3 D2 D1 D0
0
0
0
1
1 Port D output latch
Register Y (4)
Fig. 9 SD instruction execution example
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PROGRAM MEMORY (ROM)
The program memory is a mask ROM. 1 word of ROM is composed of 10 bits. ROM is separated every 128 words by the unit of page (addresses 0 to 127). Table 1 shows the ROM size and pages. Figure 10 shows the ROM map of M34554ED. Table 1 ROM size and pages Part number M34554M8 M34554MC M34554ED ROM (PROM) size ( 10 bits) 8192 words 12288 words 16384 words Pages 64 (0 to 63) 96 (0 to 95) 128 (0 to 127)
9876543210 000016 007F16 008016 00FF16 010016 017F16 018016 Page 0 Interrupt address page Subroutine special page Page 1 Page 2 Page 3
Note: Data in pages 64 to 127 can be referred with the TABP p instruction after the SBK instruction is executed. Data in pages 0 to 63 can be referred with the TABP p instruction after the RBK instruction is executed. A part of page 1 (addresses 008016 to 00FF16) is reserved for interrupt addresses (Figure 11). When an interrupt occurs, the address (interrupt address) corresponding to each interrupt is set in the program counter, and the instruction at the interrupt address is executed. When using an interrupt service routine, write the instruction generating the branch to that routine at an interrupt address. Page 2 (addresses 010016 to 017F16) is the special page for subroutine calls. Subroutines written in this page can be called from any page with the 1-word instruction (BM). Subroutines extending from page 2 to another page can also be called with the BM instruction when it starts on page 2. ROM pattern (bits 7 to 0) of all addresses can be used as data areas with the TABP p instruction.
3FFF16
Page 127
Fig. 10 ROM map of M34554ED
008016 008216 008416 008616 008816 008A16 008C16 008E16
9876543210 External 0 interrupt address External 1 interrupt address Timer 1 interrupt address Timer 2 interrupt address Timer 3 interrupt address Timer 5 interrupt address
Timer 4 interrupt address
00FF16
Fig. 11 Page 1 (addresses 008016 to 00FF16) structure
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4554 Group
DATA MEMORY (RAM)
1 word of RAM is composed of 4 bits, but 1-bit manipulation (with the SB j, RB j, and SZB j instructions) is enabled for the entire memory area. A RAM address is specified by a data pointer. The data pointer consists of registers Z, X, and Y. Set a value to the data pointer certainly when executing an instruction to access RAM (also, set a value after system returns from RAM back-up). RAM includes the area for LCD. When writing "1" to a bit corresponding to displayed segment, the segment is turned on. Table 2 shows the RAM size. Figure 12 shows the RAM map. * Note Register Z of data pointer is undefined after system is released from reset. Also, registers Z, X and Y are undefined in the RAM back-up. After system is returned from the RAM back-up, set these registers.
Table 2 RAM size Part number M34554M8 M34554MC M34554ED RAM size 512 words 4 bits (2048 bits) 512 words 4 bits (2048 bits) 512 words 4 bits (2048 bits)
RAM 512 words 4 bits (2048 bits) Register Z 1 0 Register X 0 1 2 3 ... 12 13 14 15 0 1 2 ... 11 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Register Y
12 13 14 15
0 1 2 3 4 5 6
8 16 24 9 17 25 10 18 26 11 19 27 12 20 28 13 21 29 14 22 30
7 15 23 31
Note: The numbers in the shaded area indicate the corresponding segment output pin numbers.
Fig. 12 RAM map
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INTERRUPT FUNCTION
The interrupt type is a vectored interrupt branching to an individual address (interrupt address) according to each interrupt source. An interrupt occurs when the following 3 conditions are satisfied. * An interrupt activated condition is satisfied (request flag = "1") * Interrupt enable bit is enabled ("1") * Interrupt enable flag is enabled (INTE = "1") Table 3 shows interrupt sources. (Refer to each interrupt request flag for details of activated conditions.)
Table 3 Interrupt sources Priority Interrupt name level 1 External 0 interrupt 2 3 4 5 6 7 External 1 interrupt Timer 1 interrupt Timer 2 interrupt Timer 3 interrupt Timer 5 interrupt Timer 4 interrupt
Activated condition Level change of INT0 pin Level change of INT1 pin Timer 1 underflow Timer 2 underflow Timer 3 underflow Timer 5 underflow Timer 4 underflow
(1) Interrupt enable flag (INTE)
The interrupt enable flag (INTE) controls whether the every interrupt enable/disable. Interrupts are enabled when INTE flag is set to "1" with the EI instruction and disabled when INTE flag is cleared to "0" with the DI instruction. When any interrupt occurs, the INTE flag is automatically cleared to "0," so that other interrupts are disabled until the EI instruction is executed.
Interrupt address Address 0 in page 1 Address 2 in page 1 Address 4 in page 1 Address 6 in page 1 Address 8 in page 1 Address A in page 1 Address E in page 1
(2) Interrupt enable bit
Use an interrupt enable bit of interrupt control registers V1 and V2 to select the corresponding interrupt or skip instruction. Table 4 shows the interrupt request flag, interrupt enable bit and skip instruction. Table 5 shows the interrupt enable bit function.
Table 4 Interrupt request flag, interrupt enable bit and skip instruction Interrupt name External 0 interrupt External 1 interrupt Timer 1 interrupt Timer 2 interrupt Timer 3 interrupt Timer 5 interrupt Timer 4 interrupt Interrupt request flag EXF0 EXF1 T1F T2F T3F T5F T4F Skip instruction SNZ0 SNZ1 SNZT1 SNZT2 SNZT3 SNZT5 SNZT4 Interrupt enable bit V10 V11 V12 V13 V20 V21 V23
(3) Interrupt request flag
When the activated condition for each interrupt is satisfied, the corresponding interrupt request flag is set to "1." Each interrupt request flag is cleared to "0" when either; * an interrupt occurs, or * the next instruction is skipped with a skip instruction. Each interrupt request flag is set when the activated condition is satisfied even if the interrupt is disabled by the INTE flag or its interrupt enable bit. Once set, the interrupt request flag retains set until a clear condition is satisfied. Accordingly, an interrupt occurs when the interrupt disable state is released while the interrupt request flag is set. If more than one interrupt request flag is set when the interrupt disable state is released, the interrupt priority level is as follows shown in Table 3.
Table 5 Interrupt enable bit function Interrupt enable bit 1 0 Occurrence of interrupt Enabled Disabled Skip instruction Invalid Valid
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(4) Internal state during an interrupt
The internal state of the microcomputer during an interrupt is as follows (Figure 14). * Program counter (PC) An interrupt address is set in program counter. The address to be executed when returning to the main routine is automatically stored in the stack register (SK). * Interrupt enable flag (INTE) INTE flag is cleared to "0" so that interrupts are disabled. * Interrupt request flag Only the request flag for the current interrupt source is cleared to "0." * Data pointer, carry flag, skip flag, registers A and B The contents of these registers and flags are stored automatically in the interrupt stack register (SDP).
* Program counter (PC) ............................................................... Each interrupt address * Stack register (SK) The address of main routine to be .................................................................................................... executed when returning * Interrupt enable flag (INTE) .................................................................. 0 (Interrupt disabled) * Interrupt request flag (only the flag for the current interrupt source) ................................................................................... 0 * Data pointer, carry flag, registers A and B, skip flag ........ Stored in the interrupt stack register (SDP) automatically Fig. 14 Internal state when interrupt occurs
(5) Interrupt processing
When an interrupt occurs, a program at an interrupt address is executed after branching a data store sequence to stack register. Write the branch instruction to an interrupt service routine at an interrupt address. Use the RTI instruction to return from an interrupt service routine. Interrupt enabled by executing the EI instruction is performed after executing 1 instruction (just after the next instruction is executed). Accordingly, when the EI instruction is executed just before the RTI instruction, interrupts are enabled after returning the main routine. (Refer to Figure 13)
Activated condition INT0 pin interrupt waveform input
Request flag Enable bit (state retained)
Enable flag
EXF0
V10
Address 0 in page 1
INT1 pin interrupt waveform input
EXF1
V11
Address 2 in page 1
Main routine Interrupt service routine
Interrupt occurs
Timer 1 underflow
T1F
V12
Address 4 in page 1
Timer 2 underflow
T2F
V13
Address 6 in page 1
Timer 3 underflow
T3F
V20
Address 8 in page 1
* * * *
Timer 5 underflow
T5F
V21
Address A in page 1
EI R TI
Interrupt is enabled
Timer 4 underflow
T4F
V23
INTE
Address E in page 1
Fig. 15 Interrupt system diagram
: Interrupt enabled state : Interrupt disabled state Fig. 13 Program example of interrupt processing
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(6) Interrupt control registers
* Interrupt control register V1 Interrupt enable bits of external 0, external 1, timer 1 and timer 2 are assigned to register V1. Set the contents of this register through register A with the TV1A instruction. The TAV1 instruction can be used to transfer the contents of register V1 to register A. Table 6 Interrupt control registers Interrupt control register V1 V13 V12 V11 V10 Timer 2 interrupt enable bit Timer 1 interrupt enable bit External 1 interrupt enable bit External 0 interrupt enable bit 0 1 0 1 0 1 0 1
* Interrupt control register V2 The timer 3, timer 5, timer 4 interrupt enable bit is assigned to register V2. Set the contents of this register through register A with the TV2A instruction. The TAV2 instruction can be used to transfer the contents of register V2 to register A.
at reset : 00002
at power down : 00002
R/W TAV1/TV1A
Interrupt disabled (SNZT2 instruction is valid) Interrupt enabled (SNZT2 instruction is invalid) Interrupt disabled (SNZT1 instruction is valid) Interrupt enabled (SNZT1 instruction is invalid) Interrupt disabled (SNZ1 instruction is valid) Interrupt enabled (SNZ1 instruction is invalid) Interrupt disabled (SNZ0 instruction is valid) Interrupt enabled (SNZ0 instruction is invalid) R/W TAV2/TV2A
Interrupt control register V2 V23 V22 V21 V20 Timer 4 interrupt enable bit Not used Timer 5 interrupt enable bit Timer 3 interrupt enable bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : 00002
Interrupt disabled (SNZT4 instruction is valid) Interrupt enabled (SNZT4 instruction is invalid) This bit has no function, but read/write is enabled. Interrupt disabled (SNZT5 instruction is valid) Interrupt enabled (SNZT5 instruction is invalid) Interrupt disabled (SNZT3 instruction is valid) Interrupt enabled (SNZT3 instruction is invalid)
Note: "R" represents read enabled, and "W" represents write enabled.
(7) Interrupt sequence
Interrupts only occur when the respective INTE flag, interrupt enable bits (V10-V13, V20, V21, V23), and interrupt request flag are "1." The interrupt actually occurs 2 to 3 machine cycles after the cycle in which all three conditions are satisfied. The interrupt occurs after 3 machine cycles only when the three interrupt conditions are satisfied on execution of other than one-cycle instructions (Refer to Figure 16).
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q When an interrupt request flag is set after its interrupt is enabled (Note 1)
1 machine cycle
T1 System clock (STCK)
T2
T3
T1
T2
T3
T1
T2
T3
T1
T2
T3
T1
T2
EI instruction execution cycle Interrupt enable flag (INTE) Interrupt enabled state
Interrupt disabled state
INT0,INT1 External interrupt EXF0,EXF1 Interrupt activated condition is satisfied. Timer 1, Timer 2, Timer 3, Timer 4, Timer 5 interrupts T1F,T2F,T3F, T4F,T5F
Retaining level of system clock for 4 periods or more is necessary.
Flag cleared 2 to 3 machine cycles (Notes 1, 2) Notes 1: The address is stacked to the last cycle. 2: This interval of cycles depends on the executed instruction at the time when each interrupt activated condition is satisfied.
The program starts from the interrupt address.
Fig. 16 Interrupt sequence
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EXTERNAL INTERRUPTS
The 4554 Group has the external 0 interrupt and external 1 interrupt. An external interrupt request occurs when a valid waveform is input to an interrupt input pin (edge detection). The external interrupt can be controlled with the interrupt control registers I1 and I2. Table 7 External interrupt activated conditions Name External 0 interrupt Input pin D8/INT0 Activated condition When the next waveform is input to D8/INT0 pin * Falling waveform ("H""L") * Rising waveform ("L""H") * Both rising and falling waveforms External 1 interrupt D9/INT1 When the next waveform is input to D9/INT1 pin * Falling waveform ("H""L") * Rising waveform ("L""H") * Both rising and falling waveforms I21 I22 Valid waveform selection bit I11 I12
(Note 1) D8/INT0
I12
Falling
0 1
Rising
One-sided edge detection circuit
I11
0
EXF0 Both edges detection circuit (Note 2) Level detection circuit K20 (Note 3) Edge detection circuit
1
External 0 interrupt
I13
Timer 1 count start synchronous circuit K21
0
Key-on wakeup
1
Skip decision (SNZI0 instruction)
I22 (Note 1) D9/INT1
1
Rising Falling
0
One-sided edge detection circuit
I21
0
EXF1 Both edges detection circuit (Note 2) Level detection circuit K22 (Note 3) Edge detection circuit Skip decision (SNZI1 instruction)
1
External 1 interrupt
I23
Timer 3 count start synchronous circuit K23
0
Key-on wakeup
1
Notes 1: This symbol represents a parasitic diode on the port. 2: I12 (I22) = 0: "L" level detected I12 (I22) = 1: "H" level detected 3: I12 (I22) = 0: Falling edge detected I12 (I22) = 1: Rising edge detected
Fig. 17 External interrupt circuit structure
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(1) External 0 interrupt request flag (EXF0)
External 0 interrupt request flag (EXF0) is set to "1" when a valid waveform is input to D8/INT0 pin. The valid waveforms causing the interrupt must be retained at their level for 4 clock cycles or more of the system clock (Refer to Figure 16). The state of EXF0 flag can be examined with the skip instruction (SNZ0). Use the interrupt control register V1 to select the interrupt or the skip instruction. The EXF0 flag is cleared to "0" when an interrupt occurs or when the next instruction is skipped with the skip instruction. * External 0 interrupt activated condition External 0 interrupt activated condition is satisfied when a valid waveform is input to D8/INT0 pin. The valid waveform can be selected from rising waveform, falling waveform or both rising and falling waveforms. An example of how to use the external 0 interrupt is as follows. Set the bit 3 of register I1 to "1" for the INT0 pin to be in the input enabled state. Select the valid waveform with the bits 1 and 2 of register I1. Clear the EXF0 flag to "0" with the SNZ0 instruction. Set the NOP instruction for the case when a skip is performed with the SNZ0 instruction. Set both the external 0 interrupt enable bit (V10) and the INTE flag to "1." The external 0 interrupt is now enabled. Now when a valid waveform is input to the D8/INT0 pin, the EXF0 flag is set to "1" and the external 0 interrupt occurs.
(2) External 1 interrupt request flag (EXF1)
External 1 interrupt request flag (EXF1) is set to "1" when a valid waveform is input to D9/INT1 pin. The valid waveforms causing the interrupt must be retained at their level for 4 clock cycles or more of the system clock (Refer to Figure 16). The state of EXF1 flag can be examined with the skip instruction (SNZ1). Use the interrupt control register V1 to select the interrupt or the skip instruction. The EXF1 flag is cleared to "0" when an interrupt occurs or when the next instruction is skipped with the skip instruction. * External 1 interrupt activated condition External 1 interrupt activated condition is satisfied when a valid waveform is input to D9/INT1 pin. The valid waveform can be selected from rising waveform, falling waveform or both rising and falling waveforms. An example of how to use the external 1 interrupt is as follows. Set the bit 3 of register I2 to "1" for the INT1 pin to be in the input enabled state. Select the valid waveform with the bits 1 and 2 of register I2. Clear the EXF1 flag to "0" with the SNZ1 instruction. Set the NOP instruction for the case when a skip is performed with the SNZ1 instruction. Set both the external 1 interrupt enable bit (V11) and the INTE flag to "1." The external 1 interrupt is now enabled. Now when a valid waveform is input to the D9/INT1 pin, the EXF1 flag is set to "1" and the external 1 interrupt occurs.
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(3) External interrupt control registers
* Interrupt control register I1 Register I1 controls the valid waveform for the external 0 interrupt. Set the contents of this register through register A with the TI1A instruction. The TAI1 instruction can be used to transfer the contents of register I1 to register A. Table 8 External interrupt control register Interrupt control register I1 I13 INT0 pin input control bit (Note 2) 0 1 0 1 0 1 0 1
* Interrupt control register I2 Register I2 controls the valid waveform for the external 1 interrupt. Set the contents of this register through register A with the TI2A instruction. The TAI2 instruction can be used to transfer the contents of register I2 to register A.
at reset : 00002
at power down : state retained
R/W TAI1/TI1A
INT0 pin input disabled INT0 pin input enabled Falling waveform/"L" level ("L" level is recognized with the SNZI0 instruction) Rising waveform/"H" level ("H" level is recognized with the SNZI0 instruction) One-sided edge detected Both edges detected Timer 1 count start synchronous circuit not selected Timer 1 count start synchronous circuit selected
I12
Interrupt valid waveform for INT0 pin/ return level selection bit (Note 2)
I11 I10
INT0 pin edge detection circuit control bit INT0 pin Timer 1 count start synchronous circuit selection bit
Interrupt control register I2 I23 INT1 pin input control bit (Note 2) 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
R/W TAI2/TI2A
INT1 pin input disabled INT1 pin input enabled Falling waveform/"L" level ("L" level is recognized with the SNZI1 instruction) Rising waveform/"H" level ("H" level is recognized with the SNZI1 instruction) One-sided edge detected Both edges detected Timer 3 count start synchronous circuit not selected Timer 3 count start synchronous circuit selected
I22
Interrupt valid waveform for INT1 pin/ return level selection bit (Note 2)
I21 I20
INT1 pin edge detection circuit control bit INT1 pin Timer 3 count start synchronous circuit selection bit
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: When the contents of these bits (I12 , I13, I22 and I23) are changed, the external interrupt request flag (EXF0, EXF1) may be set.
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(4) Notes on External 0 interrupts
Note [1] on bit 3 of register I1 When the input of the INT0 pin is controlled with the bit 3 of register I1 in software, be careful about the following notes. * Depending on the input state of the D8/INT0 pin, the external 0 interrupt request flag (EXF0) may be set when the bit 3 of register I1 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 0 of register V1 to "0" (refer to Figure 18) and then, change the bit 3 of register I1. In addition, execute the SNZ0 instruction to clear the EXF0 flag to "0" after executing at least one instruction (refer to Figure 18). Also, set the NOP instruction for the case when a skip is performed with the SNZ0 instruction (refer to Figure 18).
Note on bit 2 of register I1 When the interrupt valid waveform of the D8/INT0 pin is changed with the bit 2 of register I1 in software, be careful about the following notes. * Depending on the input state of the D8/INT0 pin, the external 0 interrupt request flag (EXF0) may be set when the bit 2 of register I1 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 0 of register V1 to "0" (refer to Figure 20) and then, change the bit 2 of register I1. In addition, execute the SNZ0 instruction to clear the EXF0 flag to "0" after executing at least one instruction (refer to Figure 20). Also, set the NOP instruction for the case when a skip is performed with the SNZ0 instruction (refer to Figure 20).
***
LA 4 TV1A LA 8 TI1A NOP SNZ0 NOP
; (02) ; The SNZ0 instruction is valid ........... ; (12) ; Control of INT0 pin input is changed ........................................................... ; The SNZ0 instruction is executed (EXF0 flag cleared) ...........................................................
LA 4 TV1A LA 12 TI1A NOP SNZ0 NOP
***
; (02) ; The SNZ0 instruction is valid ........... ; (12) ; Interrupt valid waveform is changed ........................................................... ; The SNZ0 instruction is executed (EXF0 flag cleared) ...........................................................
***
: these bits are not used here. Fig. 18 External 0 interrupt program example-1 Note [2] on bit 3 of register I1 When the bit 3 of register I1 is cleared to "0", the RAM back-up mode is selected and the input of INT0 pin is disabled, be careful about the following notes. * When the key-on wakeup function of INT0 pin is not used (register K20 = "0"), clear bits 2 and 3 of register I1 before system enters to the RAM back-up mode. (refer to Figure 19).
: these bits are not used here. Fig. 20 External 0 interrupt program example-3
LA 0 TI1A DI EPOF POF2
***
; (002) ; Input of INT0 disabled .....................
; RAM back-up
: these bits are not used here. Fig. 19 External 0 interrupt program example-2
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(5) Notes on External 1 interrupts
Note [1] on bit 3 of register I2 When the input of the INT1 pin is controlled with the bit 3 of register I2 in software, be careful about the following notes. * Depending on the input state of the D9/INT1 pin, the external 1 interrupt request flag (EXF1) may be set when the bit 3 of register I2 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 1 of register V1 to "0" (refer to Figure 21) and then, change the bit 3 of register I2. In addition, execute the SNZ1 instruction to clear the EXF1 flag to "0" after executing at least one instruction (refer to Figure 21). Also, set the NOP instruction for the case when a skip is performed with the SNZ1 instruction (refer to Figure 21).
Note on bit 2 of register I2 When the interrupt valid waveform of the D9/INT1 pin is changed with the bit 2 of register I2 in software, be careful about the following notes. * Depending on the input state of the D9/INT1 pin, the external 1 interrupt request flag (EXF1) may be set when the bit 2 of register I2 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 1 of register V1 to "0" (refer to Figure 23) and then, change the bit 2 of register I2. In addition, execute the SNZ1 instruction to clear the EXF1 flag to "0" after executing at least one instruction (refer to Figure 23). Also, set the NOP instruction for the case when a skip is performed with the SNZ1 instruction (refer to Figure 23).
***
LA 4 TV1A LA 8 TI2A NOP SNZ1 NOP
; (02) ; The SNZ1 instruction is valid ........... ; (12) ; Control of INT1 pin input is changed ........................................................... ; The SNZ1 instruction is executed (EXF1 flag cleared) ...........................................................
LA 4 TV1A LA 12 TI2A NOP SNZ1 NOP
***
; (02) ; The SNZ1 instruction is valid ........... ; (12) ; Interrupt valid waveform is changed ........................................................... ; The SNZ1 instruction is executed (EXF1 flag cleared) ...........................................................
***
: these bits are not used here. Fig. 21 External 1 interrupt program example-1 Note [2] on bit 3 of register I2 When the bit 3 of register I2 is cleared to "0", the RAM back-up mode is selected and the input of INT1 pin is disabled, be careful about the following notes. * When the key-on wakeup function of INT1 pin is not used (register K22 = "0"), clear bits 2 and 3 of register I2 before system enters to the RAM back-up mode. (refer to Figure 22).
: these bits are not used here. Fig. 23 External 1 interrupt program example-3
LA 0 TI2A DI EPOF POF2
***
; (002) ; Input of INT1 disabled .....................
; RAM back-up
: these bits are not used here. Fig. 22 External 1 interrupt program example-2
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4554 Group
TIMERS
The 4554 Group has the following timers. * Programmable timer The programmable timer has a reload register and enables the frequency dividing ratio to be set. It is decremented from a setting value n. When it underflows (count to n + 1), a timer interrupt request flag is set to "1," new data is loaded from the reload register, and count continues (auto-reload function).
* Fixed dividing frequency timer The fixed dividing frequency timer has the fixed frequency dividing ratio (n). An interrupt request flag is set to "1" after every n count of a count pulse.
FF16 n : Counter initial value Count starts n Reload Reload
The contents of counter
1st underflow
2nd underflow
0016 Time n+1 count "1" Timer interrupt "0" request flag An interrupt occurs or a skip instruction is executed. n+1 count
Fig. 24 Auto-reload function The 4554 Group timer consists of the following circuits. * Prescaler : 8-bit programmable timer * Timer 1 : 8-bit programmable timer * Timer 2 : 8-bit programmable timer * Timer 3 : 8-bit programmable timer * Timer 4 : 8-bit programmable timer * Timer 5 : 16-bit fixed dividing frequency timer * Timer LC : 4-bit programmable timer * Watchdog timer : 16-bit fixed dividing frequency timer (Timers 1, 2, 3, 4 and 5 have the interrupt function, respectively) Prescaler and timers 1, 2, 3, 4, 5 and LC can be controlled with the timer control registers PA, W1 to W6. The watchdog timer is a free counter which is not controlled with the control register. Each function is described below.
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Table 9 Function related timers Circuit Prescaler Timer 1 Structure 8-bit programmable binary down counter 8-bit programmable binary down counter (link to INT0 input) Count source * Instruction clock (INSTCK) * Instruction clock (INSTCK) * Prescaler output (ORCLK) * Timer 5 underflow (T5UDF) * CNTR0 input Timer 2 8-bit programmable binary down counter * System clock (STCK) * Prescaler output (ORCLK) * Timer 1 underflow (T1UDF) * PWM output (PWMOUT) Timer 3 8-bit programmable binary down counter (link to INT1 input) * PWM output (PWMOUT) * Prescaler output (ORCLK) * Timer 2 underflow (T2UDF) * CNTR1 input Timer 4 8-bit programmable binary down counter Timer 5 * XIN input * Prescaler output (ORCLK) 8192 16384 32768 65536 Timer LC Watchdog timer 4-bit programmable binary down counter 16-bit fixed dividing frequency * Bit 4 of timer 5 * Prescaler output (ORCLK) * Instruction clock (INSTCK) 65534 * System reset (count twice) * WDF flag decision 1 to 16 * LCD clock W6 1 to 256 * Timer 2, 3 count source * CNTR1 output * Timer 4 interrupt * Timer 1, LC count source * Timer 5 interrupt W5 W4 1 to 256 * CNTR1 output control * Timer 3 interrupt W3 1 to 256 * Timer 3 count source * CNTR0 output * Timer 2 interrupt W2 Frequency dividing ratio 1 to 256 1 to 256 Use of output signal * Timer 1, 2, 3, 4 and LC count sources * Timer 2 count source * CNTR0 output * Timer 1 interrupt Control register PA W1 W2
(PWM output function) * XCIN input 16-bit fixed dividing frequency
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Division circuit On-chip oscillator (CMCK) Ceramic resonance Multiplexer (CMCK/CRCK) (Note 1) MR0 0 1 Divided by 8 Divided by4 Divided by 2
MR3, MR2 11 10 01 00 Internal clock generating circuit (divided by 3)
System clock (STCK)
Instruction clock (INSTCK)
XIN
RC oscillation (CRCK)
PA0 (Note 4) 0 Prescaler (8) 1
XCIN
Quartz-crystal oscillation W60 0 Port D7 output W23 0 1 I12 Falling 0 1 Rising I10 W13
ORCLK
D7/CNTR0
1
1 /2 1 /2
T1UDF T2UDF (TABPS)
Reload register RPS (8) (TPSAB) (TPSAB) (TPSAB) (TABPS)
Register B
Register A
D8/INT0
I13
One-sided edge detection circuit
I11 0 1
(Note 2) SQ
I10 1 0
Both edges detection circuit
R
T1UDF
W11, W10 00 (Note 4) W12 0 1 (TAB1) (T1AB)
Timer 1 (8) Reload register R1 (8)
(TR1AB) (T1AB) (T1AB) (TAB1)
T1F
Timer 1 interrupt
INSTCK ORCLK T5UDF D7/CNTR0
01 10 11
Register B Register A
Timer 1 underflow signal (T1UDF)
W21, W20 00
STCK ORCLK T1UDF PWMOUT
01 10 11
(Note 4) W22 0 1 (TAB2)
Timer 2 (8) Reload register R2 (8)
(T2AB) (T2AB) (T2AB) (TAB2)
T2F
Timer 2 interrupt
Register B Register A
Timer 2 underflow signal (T2UDF)
D9/INT1
I23
I22 Falling 0 1 Rising I20 W33
One-sided edge detection circuit
I21 (Note 3) 0 SQ 1 R
I20 1 0
Both edges detection circuit
T3UDF
W31, W30 00 (Note 4) W32 0 1 (TAB3) (T3AB)
Timer 3 (8) Reload register R3 (8)
(TR3AB) (T3AB) (T3AB) (TAB3)
T3F
Timer 3 interrupt
PWMOUT ORCLK T2UDF C/CNTR1
01 10 11
Register B Register A
Timer 3 underflow signal (T3UDF)
T5UDF: Timer 5 underflow signal (from timer 5) PWMOUT: PWM output signal (from timer 4 output unit)
Data is set automatically from each reload register when timer underflows (auto-reload function).
Notes 1: When CMCK instruction is executed, ceramic resonance is selected. When CRCK instruction is executed, RC oscillation is selected. When any instructions are not executed, on-chip oscillator clock (internal oscillation) is selected. 2: Timer 1 count start synchronous circuit is set by the valid edge of D8/INT0 pin selected by bits 1 (I11) and 2 (I12) of register I1. 3: Timer 3 count start synchronous circuit is set by the valid edge of D9/INT1 pin selected by bits 1 (I21) and 2 (I22) of register I2. 4: Count source is stopped by clearing to "0."
Fig. 25 Timer structure (1)
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Register B
Register A
(T4HAB)
Reload register R4H (8)
(Note 5) W40 0 1 /2 1 (Note 4) W41 0
Reload control circuit
W42
XIN ORCLK
Timer 4 (8)
1 (T4R4L) (T4AB)
"H" interval expansion
1
T
0
Q R
W41
PWMOD
Reload register R4L (8)
(TAB4) (T4AB) (TAB4)
Register B
Register A
T4F
Timer 4 interrupt
PWMOUT (To timer 2 and timer 3) Port C output C/CNTR1
W31 W30 W32 (Note 4) W52 0 Q R D T W61
W43 0 1
PWMOD
T3UDF
Timer 5 (16) (Note 6) 1 - - 4 - - - - - - - -13 14 15 16 W51, W50 11 10 01 00 (Note 4) W63 0 Timer LC (4) 1
XCIN
1
T5F
Timer 5 interrupt
Timer 5 underflow signal (T5UDF)
W62 0
1/2
LCD clock
ORCLK
1 Reload register RLC (4) (TLCA) (TLCA)
Register A
Watchdog timer (16)
INSTCK
1 - - - - - - - - - - - - - - - - - - - 16 (Note 7) S Q WDF1 R
WRST instruction
Reset signal S Q (Note 9) WEF DWDT instruction R + WRST instruction(Note 8)
D Q WDF2 TR
Watchdog reset signal
Reset signal
INSTCK : Instruction clock (system clock divided by 3) ORCLK : Prescaler output (instruction clock divided by 1 to 256)
Data is set automatically from each reload register when timer underflows (auto-reload function).
Notes 4: Count source is stopped by clearing to "0." 5: XIN cannot be used as count source when bit 1 (MR1) of register MR is set to "1" and f(XIN) oscillation is stopped. 6: This timer is initialized (initial value = FFFF16) by stop of count source (W52 = "0"). 7: Flag WDF1 is cleared to "0" and the next instruction is skipped when the WRST instruction is executed while flag WDF1 = "1". The next instruction is not skipped even when the WRST instruction is executed while flag WDF1 = "0". 8: Flag WEF is cleared to "0" and watchdog timer reset does not occur when the DWDT instruction and WRST instruction are executed continuously. 9: The WEF flag is set to "1" at system reset or RAM back-up mode.
Fig. 26 Timer structure (2)
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Table 10 Timer related registers Timer control register PA PA0 Prescaler control bit 0 1 at reset : 02 Stop (state initialized) Operating R/W TAW1/TW1A at power down : 02 W TPAA
Timer control register W1 W13 W12 W11 Timer 1 count source selection bits W10 Timer 1 count auto-stop circuit selection bit (Note 2) Timer 1 control bit
at reset : 00002 0 1 0 1 W11 W10 0 0 0 1 1 0 1 1
at power down : state retained
Timer 1 count auto-stop circuit not selected Timer 1 count auto-stop circuit selected Stop (state retained) Operating Count source Instruction clock (INSTCK) Prescaler output (ORCLK) Timer 5 underflow signal (T5UDF) CNTR0 input R/W TAW2/TW2A
Timer control register W2 W23 W22 W21 Timer 2 count source selection bits W20 CNTR0 output control bit Timer 2 control bit
at reset : 00002 0 1 0 1 W21 W20 0 0 0 1 1 0 1 1
at power down : state retained
Timer 1 underflow signal divided by 2 output Timer 2 underflow signal divided by 2 output Stop (state retained) Operating Count source System clock (STCK) Prescaler output (ORCLK) Timer 1 underflow signal (T1UDF) PWM signal (PWMOUT) R/W TAW3/TW3A
Timer control register W3 W33 W32 W31 Timer 3 count source selection bits (Note 4) Timer 3 count auto-stop circuit selection bit (Note 3) Timer 3 control bit
at reset : 00002 0 1 0 1 W31 W30 0 0 0 1 1 0 1 1
at power down : state retained
W30
Timer 3 count auto-stop circuit not selected Timer 3 count auto-stop circuit selected Stop (state retained) Operating Count source PWM signal (PWMOUT) Prescaler output (ORCLK) Timer 2 underflow signal (T2UDF) CNTR1 input
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: This function is valid only when the timer 1 count start synchronous circuit is selected (I10="1"). 3: This function is valid only when the timer 3 count start synchronous circuit is selected (I20="1"). 4: Port C output is invalid when CNTR1 input is selected for the timer 3 count source.
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Timer control register W4 W43 W42 W41 W40 CNTR1 output control bit PWM signal "H" interval expansion function control bit Timer 4 control bit Timer 4 count source selection bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : 00002
R/W TAW4/TW4A
CNTR1 output invalid CNTR1 output valid PWM signal "H" interval expansion function invalid PWM signal "H" interval expansion function valid Stop (state retained) Operating XIN input Prescaler output (ORCLK) divided by 2
Timer control register W5 W53 W52 W51 Timer 5 count value selection bits W50 Not used Timer 5 control bit 0 1 0 1
at reset : 00002
at power down : state retained
R/W TAW5/TW5A
This bit has no function, but read/write is enabled. Stop (state initialized) Operating Count value Underflow occurs every 8192 counts Underflow occurs every 16384 counts Underflow occurs every 32768 counts Underflow occurs every 65536 counts R/W TAW6/TW6A
W51 W50 0 0 0 1 1 0 1 1
Timer control register W6 W63 W62 W61 W60 Timer LC control bit Timer LC count source selection bit CNTR1 output auto-control circuit selection bit D7/CNTR0 pin function selection bit (Note 2) 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
Stop (state retained) Operating Bit 4 (T54) of timer 5 Prescaler output (ORCLK) CNTR1 output auto-control circuit not selected CNTR1 output auto-control circuit selected D7(I/O)/CNTR0 input CNTR0 input/output/D7 (input)
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: CNTR0 input is valid only when CNTR0 input is selected for the timer 1 count source.
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(1) Timer control registers
* Timer control register PA Register PA controls the count operation of prescaler. Set the contents of this register through register A with the TPAA instruction. * Timer control register W1 Register W1 controls the selection of timer 1 count auto-stop circuit, and the count operation and count source of timer 1. Set the contents of this register through register A with the TW1A instruction. The TAW1 instruction can be used to transfer the contents of register W1 to register A. * Timer control register W2 Register W2 controls the selection of CNTR0 output, and the count operation and count source of timer 2. Set the contents of this register through register A with the TW2A instruction. The TAW2 instruction can be used to transfer the contents of register W2 to register A. * Timer control register W3 Register W3 controls the selection of timer 3 count auto-stop circuit, and the count operation and count source of timer 3. Set the contents of this register through register A with the TW3A instruction. The TAW3 instruction can be used to transfer the contents of register W3 to register A. * Timer control register W4 Register W4 controls the CNTR1 output, the expansion of "H" interval of PWM output, and the count operation and count source of timer 4. Set the contents of this register through register A with the TW4A instruction. The TAW4 instruction can be used to transfer the contents of register W4 to register A. * Timer control register W5 Register W5 controls the count operation and count source of timer 5. Set the contents of this register through register A with the TW5A instruction. The TAW5 instruction can be used to transfer the contents of register W5 to register A. * Timer control register W6 Register W6 controls the operation and count source of timer LC, the selection of CNTR1 output auto-control circuit and the D7/ CNTR0 pin function. Set the contents of this register through register A with the TW6A instruction. The TAW6 instruction can be used to transfer the contents of register W6 to register A..
(2) Prescaler (interrupt function)
Prescaler is an 8-bit binary down counter with the prescaler reload register PRS. Data can be set simultaneously in prescaler and the reload register RPS with the TPSAB instruction. Data can be read from reload register RPS with the TABPS instruction. Stop counting and then execute the TPSAB or TABPS instruction to read or set prescaler data. Prescaler starts counting after the following process; set data in prescaler, and set the bit 0 of register PA to "1." When a value set in reload register RPS is n, prescaler divides the count source signal by n + 1 (n = 0 to 255). Count source for prescaler is the instruction clock (INSTCK). Once count is started, when prescaler underflows (the next count pulse is input after the contents of prescaler becomes "0"), new data is loaded from reload register RPS, and count continues (auto-reload function). The output signal (ORCLK) of prescaler can be used for timer 1, 2, 3, 4 and LC count sources.
(3) Timer 1 (interrupt function)
Timer 1 is an 8-bit binary down counter with the timer 1 reload register (R1). Data can be set simultaneously in timer 1 and the reload register (R1) with the T1AB instruction. Data can be written to reload register (R1) with the TR1AB instruction. Data can be read from timer 1 with the TAB1 instruction. Stop counting and then execute the T1AB or TAB1 instruction to read or set timer 1 data. When executing the TR1AB instruction to set data to reload register R1 while timer 1 is operating, avoid a timing when timer 1 underflows. Timer 1 starts counting after the following process; set data in timer 1 set count source by bits 0 and 1 of register W1, and set the bit 2 of register W1 to "1." When a value set in reload register R1 is n, timer 1 divides the count source signal by n + 1 (n = 0 to 255). Once count is started, when timer 1 underflows (the next count pulse is input after the contents of timer 1 becomes "0"), the timer 1 interrupt request flag (T1F) is set to "1," new data is loaded from reload register R1, and count continues (auto-reload function). INT0 pin input can be used as the start trigger for timer 1 count operation by setting the bit 0 of register I1 to "1." Also, in this time, the auto-stop function by timer 1 underflow can be performed by setting the bit 3 of register W1 to "1." Timer 1 underflow signal divided by 2 can be output from CNTR0 pin by clearing bit 3 of register W2 to "0" and setting bit 0 of register W6 to "1".
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(4) Timer 2 (interrupt function)
Timer 2 is an 8-bit binary down counter with the timer 2 reload register (R2). Data can be set simultaneously in timer 2 and the reload register (R2) with the T2AB instruction. Data can be read from timer 2 with the TAB2 instruction. Stop counting and then execute the T2AB or TAB2 instruction to read or set timer 2 data. Timer 2 starts counting after the following process; set data in timer 2, select the count source with the bits 0 and 1 of register W2, and set the bit 2 of register W2 to "1." When a value set in reload register R2 is n, timer 2 divides the count source signal by n + 1 (n = 0 to 255). Once count is started, when timer 2 underflows (the next count pulse is input after the contents of timer 2 becomes "0"), the timer 2 interrupt request flag (T2F) is set to "1," new data is loaded from reload register R2, and count continues (auto-reload function). Timer 2 underflow signal divided by 2 can be output from CNTR0 pin by setting bit 3 of register W2 to "1" and setting bit 0 of register W6 to "1".
(6) Timer 4 (interrupt function)
Timer 4 is an 8-bit binary down counter with two timer 4 reload registers (R4L, R4H). Data can be set simultaneously in timer 4 and the reload register R4L with the T4AB instruction. Data can be set in the reload register R4H with the T4HAB instruction. The contents of reload register R4L set with the T4AB instruction can be set to timer 4 again with the T4R4L instruction. Data can be read from timer 4 with the TAB4 instruction. Stop counting and then execute the T4AB or TAB4 instruction to read or set timer 4 data. When executing the T4HAB instruction to set data to reload register R4H while timer 4 is operating, avoid a timing when timer 4 underflows. Timer 4 starts counting after the following process; set data in timer 4 set count source by bit 0 of register W4, and set the bit 1 of register W4 to "1." When a value set in reload register R4L is n, timer 4 divides the count source signal by n + 1 (n = 0 to 255). Once count is started, when timer 4 underflows (the next count pulse is input after the contents of timer 4 becomes "0"), the timer 4 interrupt request flag (T4F) is set to "1," new data is loaded from reload register R4L, and count continues (auto-reload function). When bit 3 of register W4 is set to "1", timer 4 reloads data from reload register R4L and R4H alternately each underflow. Timer 4 generates the PWM signal (PWMOUT) of the "L" interval set as reload register R4L, and the "H" interval set as reload register R4H. The PWM signal (PWMOUT) is output from CNTR1 pin. When bit 2 of register W4 is set to "1" at this time, the interval (PWM signal "H" interval) set to reload register R4H for the counter of timer 4 is extended for a half period of count source. In this case, when a value set in reload register R4H is n, timer 4 divides the count source signal by n + 1.5 (n = 1 to 255). When this function is used, set "1" or more to reload register R4H. When bit 1 of register W6 is set to "1", the PWM signal output to CNTR1 pin is switched to valid/invalid each timer 3 underflow. However, when timer 3 is stopped (bit 2 of register W3 is cleared to "0"), this function is canceled. Even when bit 1 of a register W4 is cleared to "0" in the "H" interval of PWM signal, timer 4 does not stop until it next timer 4 underflow. When clearing bit 1 of register W4 to "0" to stop timer 4, avoid a timing when timer 4 underflows.
(5) Timer 3 (interrupt function)
Timer 3 is an 8-bit binary down counter with the timer 3 reload register (R3). Data can be set simultaneously in timer 3 and the reload register (R3) with the T3AB instruction. Data can be written to reload register (R3) with the TR3AB instruction. Data can be read from timer 3 with the TAB3 instruction. Stop counting and then execute the T3AB or TAB3 instruction to read or set timer 3 data. When executing the TR3AB instruction to set data to reload register R3 while timer 3 is operating, avoid a timing when timer 3 underflows. Timer 3 starts counting after the following process; set data in timer 3 set count source by bits 0 and 1 of register W3, and set the bit 2 of register W3 to "1." When a value set in reload register R3 is n, timer 3 divides the count source signal by n + 1 (n = 0 to 255). Once count is started, when timer 3 underflows (the next count pulse is input after the contents of timer 3 becomes "0"), the timer 3 interrupt request flag (T3F) is set to "1," new data is loaded from reload register R3, and count continues (auto-reload function). INT1 pin input can be used as the start trigger for timer 3 count operation by setting the bit 0 of register I2 to "1." Also, in this time, the auto-stop function by timer 3 underflow can be performed by setting the bit 3 of register W3 to "1."
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(7) Timer 5 (interrupt function)
Timer 5 is a 16-bit binary down counter. Timer 5 starts counting after the following process; set count value by bits 0 and 1 of register W5, and set the bit 2 of register W5 to "1." Count source for timer 5 is the sub-clock input (XCIN). Once count is started, when timer 5 underflows (the set count value is counted), the timer 5 interrupt request flag (T5F) is set to "1," and count continues. Bit 4 of timer 5 can be used as the timer LC count source for the LCD clock generating. When bit 2 of register W5 is cleared to "0", timer 5 is initialized to "FFFF16" and count is stopped. Timer 5 can be used as the counter for clock because it can be operated at clock operating mode (POF instruction execution). When timer 5 underflow occurs at clock operating mode, system returns from the power down state.
(9) Timer input/output pin (D7/CNTR0 pin, C/CNTR1 pin)
CNTR0 pin is used to input the timer 1 count source and output the timer 1 and timer 2 underflow signal divided by 2. CNTR1 pin is used to input the timer 3 count source and output the PWM signal generated by timer 4. When the PWM signal is output from C/CNTR1 pin, set "0" to the output latch of port C. The D7/CNTR0 pin function can be selected by bit 0 of register W6. The selection of CNTR1 output signal can be controlled by bit 3 of register W4. When the CNTR0 input is selected for timer 1 count source, timer 1 counts the rising waveform of CNTR0 input. When the CNTR1 input is selected for timer 3 count source, timer 3 counts the rising waveform of CNTR1 input. Also, when the CNTR1 input is selected, the output of port C is invalid (high-impedance state).
(8) Timer LC
Timer LC is a 4-bit binary down counter with the timer LC reload register (RLC). Data can be set simultaneously in timer LC and the reload register (RLC) with the TLCA instruction. Data cannot be read from timer LC. Stop counting and then execute the TLCA instruction to set timer LC data. Timer LC starts counting after the following process; set data in timer LC, select the count source with the bit 2 of register W6, and set the bit 3 of register W6 to "1." When a value set in reload register RLC is n, timer LC divides the count source signal by n + 1 (n = 0 to 15). Once count is started, when timer LC underflows (the next count pulse is input after the contents of timer LC becomes "0"), new data is loaded from reload register RLC, and count continues (auto-reload function). Timer LC underflow signal divided by 2 can be used for the LCD clock.
(10) Timer interrupt request flags (T1F, T2F, T3F, T4F, T5F)
Each timer interrupt request flag is set to "1" when each timer underflows. The state of these flags can be examined with the skip instructions (SNZT1, SNZT2, SNZT3, SNZT4, SNZT5). Use the interrupt control register V1, V2 to select an interrupt or a skip instruction. An interrupt request flag is cleared to "0" when an interrupt occurs or when the next instruction is skipped with a skip instruction.
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(11) Count start synchronization circuit (timer 1, timer 3)
Timer 1 and timer 3 have the count start synchronous circuit which synchronizes the input of INT0 pin and INT1 pin, and can start the timer count operation. Timer 1 count start synchronous circuit function is selected by setting the bit 0 of register I1 to "1" and the control by INT0 pin input can be performed. Timer 3 count start synchronous circuit function is selected by setting the bit 0 of register I2 to "1" and the control by INT1 pin input can be performed. When timer 1 or timer 3 count start synchronous circuit is used, the count start synchronous circuit is set, the count source is input to each timer by inputting valid waveform to INT0 pin or INT1 pin. The valid waveform of INT0 pin or INT1 pin to set the count start synchronous circuit is the same as the external interrupt activated condition. Once set, the count start synchronous circuit is cleared by clearing the bit I10 or I20 to "0" or reset. However, when the count auto-stop circuit is selected, the count start synchronous circuit is cleared (auto-stop) at the timer 1 or timer 3 underflow.
(13) Precautions
Note the following for the use of timers. * Prescaler Stop counting and then execute the TABPS instruction to read from prescaler data. Stop counting and then execute the TPSAB instruction to set prescaler data. * Timer count source Stop timer 1, 2, 3, 4 and LC counting to change its count source. * Reading the count value Stop timer 1, 2, 3 or 4 counting and then execute the data read instruction (TAB1, TAB2, TAB3, TAB4) to read its data. * Writing to the timer Stop timer 1, 2, 3, 4 or LC counting and then execute the data write instruction (T1AB, T2AB, T3AB, T4AB, TLCA) to write its data. * Writing to reload register R1, R3, R4H When writing data to reload register R1, reload register R3 or reload regiser R4H while timer 1, timer 3 or timer 4 is operating, avoid a timing when timer 1, timer 3 or timer 4 underflows. * Timer 4 Avoid a timing when timer 4 underflows to stop timer 4. When "H" interval extension function of the PWM signal is set to be "valid", set "1" or more to reload register R4H. * Timer 5 Stop timer 5 counting to change its count source. * Timer input/output pin Set the port C output latch to "0" to output the PWM signal from C/CNTR pin.
(12) Count auto-stop circuit (timer 1, timer 3)
Timer 1 has the count auto-stop circuit which is used to stop timer 1 automatically by the timer 1 underflow when the count start synchronous circuit is used. The count auto-stop cicuit is valid by setting the bit 3 of register W1 to "1". It is cleared by the timer 1 underflow and the count source to timer 1 is stopped. This function is valid only when the timer 1 count start synchronous circuit is selected. Timer 3 has the count auto-stop circuit which is used to stop timer 3 automatically by the timer 3 underflow when the count start synchronous circuit is used. The count auto-stop cicuit is valid by setting the bit 3 of register W3 to "1". It is cleared by the timer 3 underflow and the count source to timer 3 is stopped. This function is valid only when the timer 3 count start synchronous circuit is selected.
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q CNTR1 output: invalid (W43 = "0")
Timer 4 count source
Timer 4 count value (Reload register) Timer 4 underflow signal PWM signal (output invalid)
0316 (R2L)
0216 0116 0016 0316 0216 0116 0016 0316 0216 0116 0016 0316 0216 0116 0016 0316 0216 0116 0016
(R2L)
(R2L)
(R2L)
(R2L)
PWM signal "L" fixed Timer 4 start
q CNTR1 output: valid (W43 = "1") PWM signal "H" interval extension function: invalid (W42 = "0")
Timer 4 count source Timer 4 count value (Reload register) Timer 4 underflow signal PWM signal Timer 4 start 3 clock PWM period 7 clock 3 clock PWM period 7 clock 0316 (R2L) (R2H) (R2L) (R2H) (R2L) (R2H) 0216 0116 0016 0216 0116 0016 0316 0216 0116 0016 0216 0116 0016 0316 0216 0116 0016 0216 0116
q CNTR1 output: valid (W43 = "1") PWM signal "H" interval extension function: valid (W42 = "1") (Note)
Timer 4 count source Timer 4 count value (Reload register) Timer 4 underflow signal PWM signal Timer 4 start 3.5 clock PWM period 7.5 clock 3.5 clock PWM period 7.5 clock 0316 (R2L) (R2H) (R2L) (R2H) (R2L) (R2H) 0216 0116 0016 0216 0116 0016 0316 0216 0116 0016 0216 0116 0016 0316 0216 0116 0016 0216
Note: At PWM signal "H" interval extension function: valid, set "0116" or more to reload register R4H.
Fig. 27 Timer 4 operation (reload register R4L: "0316", R4H: "0216")
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CNTR1 output auto-control circuit by timer 3 is selected.
q CNTR1 output: valid (W43 = "1") CNTR1 output auto-control circuit selected (W61 = "1") PWM signal Timer 3 underflow signal Timer 3 start CNTR1 output CNTR1 output start
q CNTR1 output auto-control function
PWM signal Timer 3 underflow signal Timer 3 start Register W61
Timer 3 stop
CNTR1 output CNTR1 output start CNTR1 output stop

When the CNTR1 output auto-control function is set to be invalid while the CNTR1 output is invalid, the CNTR1 output invalid state is retained. When the CNTR1 output auto-control function is set to be invalid while the CNTR1 output is valid, the CNTR1 output valid state is retained. When timer 3 is stopped, the CNTR1 output auto-control function becomes invalid. Note: When the PWM signal is output from C/CNTR1 pin, set the output latch of port C to "0".
Fig. 28 CNTR1 output auto-control function by timer 3
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qWaveform extension function of CNTR1 output "H" interval: Invalid (W42 = "0"), CNTR1 output: valid (W43 = "1"), Count source: XIN input selected (W40 = "0"), Reload register R4L: "0316" Reload register R4H: "0216"
Timer 4 count start timing
Machine cycle
Mi
Mi+1
Mi+2
TW4A instruction execution cycle (W41) 1
System clock f(STCK)=f(XIN)/4 XIN input (count source selected) Register W41 Timer 4 count value (Reload register) Timer 4 underflow signal PWM signal 0316 (R4L) 0216 0116 0016 0216 0116 0016 0316 0216 0116 (R4H) (R4L)
Timer 4 count start timing
Timer 4 count stop timing
Machine cycle Mi Mi+1 Mi+2
TW4A instruction execution cycle (W41) 0
System clock f(STCK)=f(XIN)/4 XIN input (count source selected) Register W41 Timer 4 count value (Reload register) Timer 4 underflow signal PWM signal (Note 1) 0216 0116 0016 0216 0116 0016 0316 0216 0116 0016 (R2H) (R2L) 0216 (R2H)
Timer 4 count stop timing
Notes 1: In order to stop timer 4 at CNTR1 output valid (W43 = "1"), avoid a timing when timer 4 underflows. If these timings overlap, a hazard may occur in a CNTR1 output waveform. 2: At CNTR1 output valid, timer 4 stops after "H" interval of PWM signal set by reload register R4H is output.
Fig. 29 Timer 4 count start/stop timing
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4554 Group
WATCHDOG TIMER
Watchdog timer provides a method to reset the system when a program run-away occurs. Watchdog timer consists of timer WDT(16-bit binary counter), watchdog timer enable flag (WEF), and watchdog timer flags (WDF1, WDF2). The timer WDT downcounts the instruction clocks as the count source from "FFFF16" after system is released from reset. After the count is started, when the timer WDT underflow occurs (after the count value of timer WDT reaches "000016," the next count pulse is input), the WDF1 flag is set to "1." If the WRST instruction is never executed until the timer WDT underflow occurs (until timer WDT counts 65534), WDF2 flag is set to "1," and the RESET pin outputs "L" level to reset the microcomputer. Execute the WRST instruction at each period of 65534 machine cycle or less by software when using watchdog timer to keep the microcomputer operating normally. When the WEF flag is set to "1" after system is released from reset, the watchdog timer function is valid. When the DWDT instruction and the WRST instruction are executed continuously, the WEF flag is cleared to "0" and the watchdog timer function is invalid. The WEF flag is set to "1" at system reset or RAM back-up mode. The WRST instruction has the skip function. When the WRST instruction is executed while the WDF1 flag is "1", the WDF1 flag is cleared to "0" and the next instruction is skipped. When the WRST instruction is executed while the WDF1 flag is "0", the next instruction is not skipped. The skip function of the WRST instruction can be used even when the watchdog timer function is invalid.
FFFF16 Value of 16-bit timer (WDT) 000016 WDF1 flag
65534 count (Note) WDF2 flag
RESET pin output Reset released WRST instruction executed (skip executed) System reset
After system is released from reset (= after program is started), timer WDT starts count down. When timer WDT underflow occurs, WDF1 flag is set to "1." When the WRST instruction is executed, WDF1 flag is cleared to "0," the next instruction is skipped. When timer WDT underflow occurs while WDF1 flag is "1," WDF2 flag is set to "1" and the watchdog reset signal is output. The output transistor of RESET pin is turned "ON" by the watchdog reset signal and system reset is executed. Note: The number of count is equal to the number of cycle because the count source of watchdog timer is the instruction clock.
Fig. 30 Watchdog timer function
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4554 Group
When the watchdog timer is used, clear the WDF1 flag at the period of 65534 machine cycles or less with the WRST instruction. When the watchdog timer is not used, execute the DWDT instruction and the WRST instruction continuously (refer to Figure 31). The watchdog timer is not stopped with only the DWDT instruction. The contents of WDF1 flag and timer WDT are initialized at the power down mode. When using the watchdog timer and the power down mode, initialize the WDF1 flag with the WRST instruction just before the microcomputer enters the power down state (refer to Figure 32). The watchdog timer function is valid after system is returned from the power down. When not using the watchdog timer function, execute the DWDT instruction and the WRST instruction continuously every system is returned from the power down, and stop the watchdog timer function.
WRST
***
; WDF1 flag cleared
DI DWDT WRST
***
; Watchdog timer function enabled/disabled ; WEF and WDF1 flags cleared
Fig. 31 Program example to start/stop watchdog timer
WRST ; WDF1 flag cleared NOP DI ; Interrupt disabled EPOF ; POF instruction enabled POF Oscillation stop
Fig. 32 Program example to enter the mode when using the watchdog timer
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***
***
***
4554 Group
LCD FUNCTION
The 4554 Group has an LCD (Liquid Crystal Display) controller/ driver. When the proper voltage is applied to LCD power supply input pins (VLC1-VLC3) and data are set in timer control register (W6), timer LC, LCD control registers (L1, L2), and LCD RAM, the LCD controller/driver automatically reads the display data and controls the LCD display by setting duty and bias. 4 common signal output pins and 32 segment signal output pins can be used to drive the LCD. By using these pins, up to 128 segments (when 1/4 duty and 1/3 bias are selected) can be controlled to display. The LCD power input pins (VLC1-VLC3) are also used as pins SEG0-SEG2. When SEG0-SEG2 are selected, the internal power (VDD) is used for the LCD power.
(2) LCD clock control
The LCD clock is determined by the timer LC count source selection bit (W62), timer LC control bit (W63), and timer LC. Accordingly, the frequency (F) of the LCD clock is obtained by the following formula. Numbers ( to ) shown below the formula correspond to numbers in Figure 33, respectively. * When using the prescaler output (ORCLK) as timer LC count source (W62="1") F = ORCLK 1 LC + 1 1 2
(1) Duty and bias
There are 3 combinations of duty and bias for displaying data on the LCD. Use bits 0 and 1 of LCD control register (L1) to select the proper display method for the LCD panel being used. * 1/2 duty, 1/2 bias * 1/3 duty, 1/3 bias * 1/4 duty, 1/3 bias Table 11 Duty and maximum number of displayed pixels Duty 1/2 1/3 1/4 Maximum number of displayed pixels Used COM pins 64 segments COM0, COM1 (Note) 96 segments COM0-COM2 (Note) 128 segments COM0-COM3
* When using the bit 4 of timer 5 as timer LC count source (W62="0") F = T54 [LC: 0 to 15] The frame frequency and frame period for each display method can be obtained by the following formula: Frame frequency = F n n F (Hz) 1 LC + 1 1 2
Frame period =
(s) F: LCD clock frequency 1/n: Duty
Note: Leave unused COM pins open.
(Note) W63 W62 0 T54 ORCLK 0 1 Reload register RLC (TLCA) (TLCA) (4) 1 Timer LC (4) 1/2 LCD clock
Register A Note: Count source is stopped by setting "0" to this bit.
Fig. 33 LCD clock control circuit structure
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4554 Group
SEG0/VLC3 COM3 COM1 COM2 COM0
SEG2/VLC1 SEG3 to SEG31
SEG1 /VLC2
r r r r
SEG0 to SEG2 output
.........
Multiplexer
r r
Control signal
Common driver
Bias control
Segment driver
...
Segment driver
Selector
... Selector ...
RAM
Decoder
1/2,1/3,1/4 counter LCD clock (from timer block)
RAM
LCD ON/OFF control L13 L12 L11 L10 L23 L22 L21 L20
Register A
Fig. 34 LCD controller/driver
(3) LCD RAM
RAM contains areas corresponding to the liquid crystal display. When "1" is written to this LCD RAM, the display pixel corresponding to the bit is automatically displayed.
(4) LCD drive waveform
When "1" is written to a bit in the LCD RAM data, the voltage difference between common pin and segment pin which correspond to the bit automatically becomes lVLC3l and the display pixel at the cross section turns on. When returning from reset, and in the RAM back-up mode, a display pixel turns off because every segment output pin and common output pin becomes VLC3 level.
Z X Y 8 9 10 11 12 13 14 15 COM
Bits
1 3 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM3 2 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM2 12 1 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM1 0 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM0 3 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 COM3 2 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 COM2 13 1 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 COM1 0 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 COM0 3 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 COM3 14 2 1 SEG16 SEG16 SEG17 SEG17 SEG18 SEG18 SEG19 SEG19 SEG20 SEG20 SEG21 SEG21 SEG22 SEG22 SEG23 SEG23 COM2 COM1 0 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 COM0 3 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 COM3 14 2 1 SEG24 SEG24 SEG25 SEG25 SEG26 SEG26 SEG27 SEG27 SEG28 SEG29 SEG30 SEG31 COM2 SEG28 SEG29 SEG30 SEG31 COM1 0 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 COM0
Note: The area marked "
" is not the LCD display RAM.
Fig. 35 LCD RAM map
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4554 Group
Table 12 LCD control registers LCD control register L1 L13 L12 L11 LCD duty and bias selection bits L10 Internal dividing resistor for LCD power supply selection bit (Note 2) LCD control bit 0 1 0 1 L11 L10 0 0 0 1 1 0 1 1 at reset : 00002 0 1 0 1 0 1 0 1 SEG0 VLC3 SEG1 VLC2 SEG2 VLC1 Internal dividing resistor valid Internal dividing resistor invalid W TL3A at reset : 00002 2r 3, 2r 2 r 3, r 2 Off On Duty Not available 1/2 1/3 1/4 1/2 1/3 1/3 W TL2A Bias at power down : state retained R/W TAL1/TL1A
LCD control register L2 L23 L22 L21 L20 VLC3/SEG0 pin function switch bit (Note 3) VLC2/SEG1 pin function switch bit (Note 4) VLC1/SEG2 pin function switch bit (Note 4) Internal dividing resistor for LCD power supply control bit
at power down : state retained
LCD control register L3 L33 L32 L31 L30 SEG24/P33-SEG27/P30 pin function switch bit SEG28/P23, SEG29/P22 pin function switch bit SEG30/P21 pin function switch bit SEG31/P20 pin function switch bit 0 1 0 1 0 1 0 1
at reset : 00002 SEG24-SEG27 P33-P30 SEG28, SEG29 P23, P22 SEG30 P21 SEG31 P20
at power down : state retained
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: "r (resistor) multiplied by 3" is used at 1/3 bias, and "r multiplied by 2" is used at 1/2 bias. 3: VLC3 is connected to VDD internally when SEG0 pin is selected. 4: Use internal dividing resistor when SEG1 and SEG2 pins are selected.
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4554 Group
1/2 Duty, 1/2 Bias: When writing (XX10)2 to address M (1, 14, 8) in RAM. 1 flame (2/F) M (1, 14, 8) COM0 COM1 1/F COM1 COM0 SEG16
COM1 SEG16 COM0 SEG16 Voltage level
0 (bit 0) 1 X X (bit 3)
VLC3 VLC1=VLC2 VSS
SEG16
VLC3 VLC1=VLC2 VSS
ON 1/3 Duty, 1/3 Bias: When writing (X101)2 to address M (1, 14, 8) in RAM.
OFF
1 flame (3/F) M (1, 14, 8) COM0 COM1 COM2 1/F COM2
Voltage level
1 (bit 0) 0 1 X (bit 3)
COM1
VLC3 VLC2 VLC1 VSS
SEG16 COM0 VLC3 VLC2 VLC1 VSS
SEG16
COM2 SEG16 COM1 SEG16 COM0 SEG16
ON
OFF
ON
1/4 Duty, 1/3 Bias: When writing (1010)2 to address M (1, 14, 8) in RAM. 1 flame (4/F) M (1, 14, 8) COM0 COM1 COM2 COM3 SEG16 COM1 1 /F COM3
Voltage level
0 (bit 0) 1 0 1 (bit 3)
COM2
VLC3 VLC2 VLC1 VSS
COM0 VLC3 VLC2 VLC1 VSS
F : LCD clock frequency
SEG16
COM3 SEG16 COM2 SEG16 COM1 SEG16 COM0 SEG16
X: Set an arbitrary value. (These bits are not related to set the drive waveform at each duty.)
ON
OFF
ON
OFF
Fig. 36 LCD controller/driver structure
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4554 Group
(5) LCD power supply circuit
* Internal dividing resistor The 4554 Group has the internal dividing resistor for LCD power supply. When bit 0 of register L2 is set to "0", the internal dividing resistor is valid. However, when the LCD is turned off by setting bit 2 of register L1 to "0", the internal dividing resistor is turned off. The same six resistor (r) is prepared for the internal dividing resistor. According to the setting value of bit 3 of register L1 and using bias condition, the resistor is prepared as follows; * L13 = "0", 1/3 bias used: 2r 3 = 6r * L13 = "0", 1/2 bias used: 2r 2 = 4r * L13 = "1", 1/3 bias used: r 3 = 3r * L13 = "1", 1/2 bias used: r 2 = 2r * VLC3/SEG0 pin The selection of VLC3/SEG0 pin function is controlled with the bit 3 of register L2. When the VLC3 pin function is selected, apply voltage of VLC3 < VDD to the pin externally. When the SEG0 pin function is selected, VLC3 is connected to VDD internally. * VLC2/SEG1, VLC1/SEG2 pin The selection of VLC2/SEG1 pin function is controlled with the bit 2 of register L2. The selection of VLC1/SEG2 pin function is controlled with the bit 1 of register L2. When the VLC2 pin and VLC1 pin functions are selected and the internal dividing resistor is not used, apply voltage of 0Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
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4554 Group
RESET FUNCTION
System reset is performed by applying "L" level to RESET pin for 1 machine cycle or more when the following condition is satisfied; the value of supply voltage is the minimum value or more of the recommended operating conditions. Then when "H" level is applied to RESET pin, software starts from address 0 in page 0.
f(XIN)
RESET On-chip oscillator (internal oscillator)
is counted 5400 to 5424 times.
Program starts (address 0 in page 0)
Note: The number of clock cycles depends on the internal state of the microcomputer when reset is performed.
Fig. 37 Reset release timing
Reset input
=
On-chip oscillator (internal oscillator) is
1 machine cycle or more
counted 5400 to 5424 times.
0.85VDD RESET 0.3VDD
Program starts (address 0 in page 0)
(Note)
Note: Keep the value of supply voltage to the minimum value or more of the recommended operating conditions.
Fig. 38 RESET pin input waveform and reset operation
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4554 Group
(1) Power-on reset
Reset can be automatically performed at power on (power-on reset) by the built-in power-on reset circuit. When the built-in power-on reset circuit is used, the time for the supply voltage to rise from 0 V must be set to 100 s or less. If the rising time ex-
ceeds 100 s, connect a capacitor between the RESET pin and VSS at the shortest distance, and input "L" level to RESET pin until the value of supply voltage reaches the minimum operating voltage.
100 s or less
VDD (Note 3)
Pull-up transistor
(Note 1) (Note 2)
Power-on reset circuit output
RESET pin
(Note 1)
Internal reset signal Power-on reset circuit Voltage drop detection circuit Watchdog reset signal
WEF
Internal reset signal
Reset state Power-on Reset released
This symbol represents a parasitic diode. Notes 1: 2: Applied potential to RESET pin must be VDD or less. 3: Keep the value of supply voltage to the minimum value or more of the recommended operating conditions.
Fig. 39 Structure of reset pin and its peripherals,, and power-on reset operation Table 13 Port state at reset Name D0-D6 D7/CNTR0 D8/INT0, D9/INT1 P00-P03 P10-P13 SEG31/P20-SEG28/P23 SEG27/P30-SEG24/P33 SEG0/VLC3-SEG2/VLC1 SEG3-SEG23 COM0-COM3 C/CNTR1
Notes 1: Output latch is set to "1." 2: Output structure is N-channel open-drain. 3: Pull-up transistor is turned OFF.
Function D0-D6 D7 D8, D9 P00-P03 P10-P13 SEG31-SEG28 SEG27-SEG24 SEG0-SEG2 SEG3-SEG23 COM0-COM3 C High-impedance (Notes 1, 2) High-impedance (Notes 1, 2) High-impedance (Note 1)
State
High-impedance (Notes 1, 2, 3) High-impedance (Notes 1, 2, 3) VLC3 (VDD) level VLC3 (VDD) level VLC3 (VDD) level VLC3 (VDD) level VLC3 (VDD) level "L" (VSS) level
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4554 Group
(2) Internal state at reset
Figure 40 shows internal state at reset (they are the same after system is released from reset). The contents of timers, registers, flags and RAM except shown in Figure 40 are undefined, so set the initial value to them.
* Program counter (PC) .......................................................................................................... 0 00000 Address 0 in page 0 is set to program counter. * Interrupt enable flag (INTE) .................................................................................................. 0 * Power down flag (P) ............................................................................................................. 0 * External 0 interrupt request flag (EXF0) .............................................................................. 0 * External 1 interrupt request flag (EXF1) .............................................................................. 0 * Interrupt control register V1 .................................................................................................. 0 000 000 * Interrupt control register V2 .................................................................................................. 0 000 * Interrupt control register I1 ................................................................................................... 0 * Interrupt control register I2 ................................................................................................... 0 000 * Timer 1 interrupt request flag (T1F) ..................................................................................... 0 * Timer 2 interrupt request flag (T2F) ..................................................................................... 0 * Timer 3 interrupt request flag (T3F) ..................................................................................... 0 * Timer 4 interrupt request flag (T4F) ..................................................................................... 0 * Timer 5 interrupt request flag (T5F) ..................................................................................... 0 * Watchdog timer flags (WDF1, WDF2) .................................................................................. 0 * Watchdog timer enable flag (WEF) ...................................................................................... 1 * Timer control register PA ...................................................................................................... 0 * Timer control register W1 ..................................................................................................... 0 000 000 * Timer control register W2 ..................................................................................................... 0 * Timer control register W3 ..................................................................................................... 0 000 * Timer control register W4 ..................................................................................................... 0 000 000 * Timer control register W5 ..................................................................................................... 0 * Timer control register W6 ..................................................................................................... 0 000 * Clock control register MR ..................................................................................................... 0 110 000 * LCD control register L1 ........................................................................................................ 0 * LCD control register L2 ........................................................................................................ 0 000 * LCD control register L3 ........................................................................................................ 0 000 000 * Key-on wakeup control register K0 ...................................................................................... 0 * Key-on wakeup control register K1 ...................................................................................... 0 000 * Key-on wakeup control register K2 ...................................................................................... 0 000 000 * Pull-up control register PU0 ................................................................................................. 0 * Pull-up control register PU1 ................................................................................................. 0 000 * Port output structure control register FR0 ........................................................................... 0 000 000 * Port output structure control register FR1 ........................................................................... 0 * Port output structure control register FR2 ........................................................................... 0 000 * Carry flag (CY) ...................................................................................................................... 0 000 * Register A ............................................................................................................................. 0 * Register B ............................................................................................................................. 0 000 * Register D ............................................................................................................................. * Register E ............................................................................................................................. * Register X ............................................................................................................................. 0 000 * Register Y ............................................................................................................................. 0 000 * Register Z ............................................................................................................................. * Stack pointer (SP) ................................................................................................................ 1 11 * Operation source clock .......................................................... On-chip oscillator (operating) * Ceramic resonator circuit ..................................................................................... Operating * RC oscillation circuit ...................................................................................................... Stop * Quartz-crystal oscillator ........................................................................................ Operating Fig. 40 Internal state at reset
0
0
0
0
0
0
0
0
(Interrupt disabled)
(Interrupt disabled) (Interrupt disabled)
(Prescaler stopped) (Timer 1 stopped) (Timer 2 stopped) (Timer 3 stopped) (Timer 4 stopped) (Timer 5 stopped) (Timer LC stopped)
"" represents undefined.
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4554 Group
VOLTAGE DROP DETECTION CIRCUIT
The built-in voltage drop detection circuit is designed to detect a drop in voltage and to reset the microcomputer if the supply voltage drops below a set value.
S Q R EPOF instruction +POF instruction EPOF instruction +POF2 instruction Internal reset signal T5F flag Key-on wakeup signal SVDE instruction Internal reset signal VDCE
Q
S R
- VRST +
Voltage drop detection circuit Reset signal
Voltage drop detection circuit
Fig. 41 Voltage drop detection reset circuit
VDD
VRST (detection voltage)
Voltage drop detection circuit Reset signal Microcomupter starts operation after on-chip oscillator (internal oscillator) clock is counted 5400 to 5424 times.
RESET pin
Note: Detection voltage of voltage drop detection circuit does not have hysteresis.
Fig. 42 Voltage drop detection circuit operation waveform Table 14 Voltage drop detection circuit operation state VDCE pin "L" "H" At CPU operating Invalid Valid At power down (SVDE instruction is not executed) Invalid Invalid
VDD Recommended operatng condition min.value VRST
At power down (SVDE instruction is executed) Invalid Valid
(2) Note on voltage drop detection circuit The voltage drop detection circuit detection voltage of this product is set up lower than the minimum value of the supply voltage of the recommended operating conditions. When the supply voltage of a microcomputer falls below to the minimum value of recommended operating conditions and regoes up (ex. battery exchange of an application product), depending on the capacity value of the bypass capacitor added to the power supply pin, the following case may cause program failure (Figure 43); supply voltage does not fall below to VRST, and its voltage re-goes up with no reset. In such a case, please design a system which supply voltage is once reduced below to VRST and re-goes up after that.
No reset Program failure may occur.
VDD Recommended operatng condition min.value VRST Reset
Normal operation
Fig. 43 VDD and VRST
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4554 Group
POWER DOWN FUNCTION
The 4554 Group has 2-type power down functions. System enters into each power down state by executing the following instructions. * Clock operating mode ...................... EPOF and POF instructions * RAM back-up mode ....................... EPOF and POF2 instructions When the EPOF instruction is not executed before the POF or POF2 instruction is executed, these instructions are equivalent to the NOP instruction.
Table 15 Functions and states retained at power down Power down mode Function Program counter (PC), registers A, B, carry flag (CY), stack pointer (SP) (Note 2) Contents of RAM Interrupt control registers V1, V2 Interrupt control registers I1, I2 Selected oscillation circuit Clock control register MR Timer 1 to timer 4 functions Timer 5 function Timer LC function Watchdog timer function Timer control registers PA, W4 Timer control registers W1 to W3, W5, W6 LCD display function LCD control registers L1 to L3 Voltage drop detection circuit Port level Pull-up control registers PU0, PU1 Key-on wakeup control registers K0 to K2 Port output format control registers FR0 to FR2 External interrupt request flags (EXF0, EXF1) Timer interrupt request flags (T1F to T4F) Timer interrupt request flag (T5F) Interrupt enable flag (INTE) Watchdog timer flags (WDF1, WDF2) Watchdog timer enable flag (WEF) (Note 3) O (Note 3) O
Clock operating RAM back-up
O O O O (Note 3) O O O O O (Note 6) (Note 7) O O O
O O O O (Note 3) O (Note 3) O (Note 5) O (Note 6) (Note 7) O O O
(1) Clock operating mode
The following functions and states are retained. * RAM * Reset circuit * XCIN-XCOUT oscillation * LCD display * Timer 5
(Note 4) (Note 4)
(2) RAM back-up mode
The following functions and states are retained. * RAM * Reset circuit
(3) Warm start condition
The system returns from the power down state when; * External wakeup signal is input * Timer 5 underflow occurs in the power down mode. In either case, the CPU starts executing the software from address 0 in page 0. In this case, the P flag is "1."
(Note 4) (Note 4) (Note 4) (Note 4)
(4) Cold start condition
The CPU starts executing the software from address 0 in page 0 when; * reset pulse is input to RESET pin, * reset by watchdog timer is performed, or * reset by the voltage drop detection circuit is performed. In this case, the P flag is "0."
(5) Identification of the start condition
Warm start or cold start can be identified by examining the state of the power down flag (P) with the SNZP instruction. The warm start condition from the clock operating mode can be identified by examining the state of T5F flag.
Notes 1:"O" represents that the function can be retained, and "" represents that the function is initialized. Registers and flags other than the above are undefined at RAM back-up, and set an initial value after returning. 2: The stack pointer (SP) points the level of the stack register and is initialized to "7" at RAM back-up. 3: The state of the timer is undefined. 4: Initialize the watchdog timer with the WRST instruction, and then go into the power down state. 5: LCD is turned off. 6: When the SVDE instruction is executed while the VDCE pin is in the "H" state, this function is valid at power down. 7: In the power down mode, C/CNTR1 pin outputs "L" level. However, when the CNTR input is selected (W11, W10="11"), C/ CNTR1 pin is in an input enabled state (output=high-impedance). Other ports retain their respective output levels.
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4554 Group
(6) Return signal
An external wakeup signal or timer 5 interrupt request flag (T5F) is used to return from the clock operating mode. An external wakeup signal is used to return from the RAM back-up mode because the oscillation is stopped. Table 16 shows the return condition for each return source.
(7) Control registers
* Key-on wakeup control register K0 Register K0 controls the port P0 key-on wakeup function. Set the contents of this register through register A with the TK0A instruction. In addition, the TAK0 instruction can be used to transfer the contents of register K0 to register A. * Key-on wakeup control register K1 Register K1 controls the port P1 key-on wakeup function. Set the contents of this register through register A with the TK1A instruction. In addition, the TAK1 instruction can be used to transfer the contents of register K0 to register A. * Key-on wakeup control register K2 Register K2 controls the INT0 and INT1 pin key-on wakeup function. Set the contents of this register through register A with the TK2A instruction. In addition, the TAK2 instruction can be used to transfer the contents of register K2 to register A.
* Pull-up control register PU0 Register PU0 controls the ON/OFF of the port P0 pull-up transistor. Set the contents of this register through register A with the TPU0A instruction. In addition, the TAPU0 instruction can be used to transfer the contents of register PU0 to register A. * Pull-up control register PU1 Register PU1 controls the ON/OFF of the port P1 pull-up transistor. Set the contents of this register through register A with the TPU1A instruction. In addition, the TAPU1 instruction can be used to transfer the contents of register PU1 to register A. * External interrupt control register I1 Register I1 controls the valid waveform of the external 0 interrupt, the input control of INT0 pin and the return input level. Set the contents of this register through register A with the TI1A instruction. In addition, the TAI1 instruction can be used to transfer the contents of register I1 to register A. * External interrupt control register I2 Register I2 controls the valid waveform of the external 1 interrupt, the input control of INT1 pin and the return input level. Set the contents of this register through register A with the TI2A instruction. In addition, the TAI2 instruction can be used to transfer the contents of register I2 to register A.
External wakeup signal
Table 16 Return source and return condition Remarks Return source Return condition Ports P00-P03 Return by an external "L" level in- The key-on wakeup function can be selected by one port unit. Set the port using the key-on wakeup function to "H" level before going into the power Ports P10-P13 put. down state. Return by an external "H" level or Select the return level ("L" level or "H" level) with register I1 (I2) and return INT0 pin "L" level input, or rising edge condition (return by level or edge) with register K2 according to the external INT1 pin ( " L " " H " ) o r f a l l i n g e d g e state before going into the power down state. ("H""L"). When the return level is input, the interrupt request flag (EXF0, EXF1) is not set. Return by timer 5 underflow or by Clear T5F with the SNZT5 instruction before system enters into the power setting T5F to "1". down state. It can be used in the clock operat- When system enters into the power down state while T5F is "1", system reing mode. turns from the state immediately because it is recognized as return condition.
Timer 5 interrupt request flag (T5F)
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4554 Group
High-speed mode E
Clock operating mode POF instruction execution
B
Operation state * Operation source clock: f(XIN) * Oscillation circuit: Ceramic resonator * On-chip oscillator: Stop * RC oscillation circuit: Stop CMCK instruction execution (Note 3)
POF2 instruction execution
F
RAM back-up mode
Key-on wakeup (Stabilizing time c )
Key-on wakeup (Stabilizing time c )
POF instruction execution
Reset
(Stabilizing time a )
Key-on wakeup (Stabilizing time b )
Operation state * Operation source clock: f(RING) * Oscillation circuit: On-chip oscillator * Ceramic resonator: Operating (Note 2) * RC oscillation circuit: Stop CRCK instruction execution (Note 3)
A
POF2 instruction execution
Key-on wakeup (Stabilizing time b )
POF instruction execution
C
Operation state * Operation source clock: f(XIN) * Oscillation circuit: RC oscillation * On-chip oscillator: Stop * Ceramic resontor: Stop
POF2 instruction execution
Key-on wakeup (Stabilizing time d )
Key-on wakeup (Stabilizing time d )
Low-speed mode
POF instruction execution
MR01 (Note 4)
MR00 (Note 4)
D
Operation state * Operation clock: f(XCIN) * Oscillation circuit: Quartz-crystal oscillation
POF2 instruction execution
Main clock: stop Sub-clock: operating
Key-on wakeup (Stabilizing time e )
Key-on wakeup (Stabilizing time e )
Main clock: stop Sub-clock: stop
Stabilizing time a : Microcomputer starts its operation after counting the on-chip oscillator clock 5400 to 5424 times. Stabilizing time b : In high-speed through-mode, microcomputer starts its operation after counting the f(RING) 675 times. In high-speed/2 mode, microcomputer starts its operation after counting the f(RING) 1350 times. In high-speed/4 mode, microcomputer starts its operation after counting the f(RING) 2700 times. In high-speed/8 mode, microcomputer starts its operation after counting the f(RING) 5400 times. Stabilizing time c : In high-speed through-mode, microcomputer starts its operation after counting the f(XIN) 675 times. In high-speed/2 mode, microcomputer starts its operation after counting the f(XIN) 1350 times. In high-speed/4 mode, microcomputer starts its operation after counting the f(XIN) 2700 times. In high-speed/8 mode, microcomputer starts its operation after counting the f(XIN) 5400 times. Stabilizing time d : In high-speed through-mode, microcomputer starts its operation after counting the f(XIN) 21 times. In high-speed/2 mode, microcomputer starts its operation after counting the f(XIN) 42 times. In high-speed/4 mode, microcomputer starts its operation after counting the f(XIN) 84 times. In high-speed/8 mode, microcomputer starts its operation after counting the f(XIN) 168 times. Stabilizing time e : In low-speed through-mode, microcomputer starts its operation after counting the f(XCIN) 675 times. In low-speed/2 mode, microcomputer starts its operation after counting the f(XCIN) 1350 times. In low-speed/4 mode, microcomputer starts its operation after counting the f(XCIN) 2700 times. In low-speed/8 mode, microcomputer starts its operation after counting the f(XCIN) 5400 times. Notes 1: Continuous execution of the EPOF instruction and the POF instruction is required to go into the clock operating state. Continuous execution of the EPOF instruction and the POF2 instruction is required to go into the RAM back-up state. 2: Through the ceramic resonator is operating, the on-chip oscillator clock is selected as the operation source clock. 3: The oscillator clock corresponding to each instruction is selected as the operation source clock, and the on-chip oscillator is stopped. 4: The main clock (f(XIN) or f(RING)) or sub-clock (f(XCIN)) is selected for operation source clock by the bit 0 of clock control register MR. 5: The sub-clock (quartz-crystal oscillation) is operating except in state F.
Fig. 44 State transition
POF or EPOF instruction + POF2 instruction Reset input
Power down flag P S Q
Program start Yes Warm start
P = "1" ?
R
No Cold start T5F = "1" ? No Return from timer 5 underflow
Yes
POF or EPOF instruction + POF2 instruction q Clear source * * * * * * Reset input q Set source
*******
Return from external wakeup signal
Fig. 45 Set source and clear source of the P flag
Fig. 46 Start condition identified example using the SNZP instruction
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4554 Group
Table 17 Key-on wakeup control register, pull-up control register and interrupt control register Key-on wakeup control register K0 K03 K02 K01 K00 Port P03 key-on wakeup control bit Port P02 key-on wakeup control bit Port P01 key-on wakeup control bit Port P00 key-on wakeup control bit 0 1 0 1 0 1 0 1 at reset : 00002 at power down : state retained R/W TAK0/ TK0A
Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used R/W TAK1/ TK1A
Key-on wakeup control register K1 K13 K12 K11 K10 Port P13 key-on wakeup control bit Port P12 key-on wakeup control bit Port P11 key-on wakeup control bit Port P10 key-on wakeup control bit 0 1 0 1 0 1 0 1
at reset : 00002 Key-on wakeup used
at power down : state retained
Key-on wakeup not used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used R/W TAK2/ TK2A
Key-on wakeup control register K2 K23 K22 K21 K20 INT1 pin return condition selection bit INT1 pin key-on wakeup control bit INT0 pin return condition selection bit INT0 pin key-on wakeup control bit 0 1 0 1 0 1 0 1
at reset : 00002 Return by level Return by edge
at power down : state retained
Key-on wakeup not used Key-on wakeup used Return by level Return by edge Key-on wakeup not used Key-on wakeup used
Note: "R" represents read enabled, and "W" represents write enabled.
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4554 Group
Pull-up control register PU0 PU03 PU02 PU01 PU00 Port P03 pull-up transistor control bit Port P02 pull-up transistor control bit Port P01 pull-up transistor control bit Port P00 pull-up transistor control bit Pull-up control register PU1 PU13 PU12 PU11 PU10 Port P13 pull-up transistor control bit Port P12 pull-up transistor control bit Port P11 pull-up transistor control bit Port P10 pull-up transistor control bit 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
at reset : 00002 Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON at reset : 00002 Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON
at power down : state retained
R/W TAPU0/ TPU0A
at power down : state retained
R/W TAPU1/ TPU1A
Interrupt control register I1 I13 INT0 pin input control bit (Note 2) 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
R/W TAI1/TI1A
INT0 pin input disabled INT0 pin input enabled Falling waveform/"L" level ("L" level is recognized with the SNZI0 instruction) Rising waveform/"H" level ("H" level is recognized with the SNZI0 instruction) One-sided edge detected Both edges detected Timer 1 count start synchronous circuit not selected Timer 1 count start synchronous circuit selected
I12
Interrupt valid waveform for INT0 pin/ return level selection bit (Note 2)
I11 I10
INT0 pin edge detection circuit control bit INT0 pin Timer 1 count start synchronous circuit selection bit
Interrupt control register I2 I23 INT1 pin input control bit (Note 2) 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
R/W TAI2/TI2A
INT1 pin input disabled INT1 pin input enabled Falling waveform/"L" level ("L" level is recognized with the SNZI1 instruction) Rising waveform/"H" level ("H" level is recognized with the SNZI1 instruction) One-sided edge detected Both edges detected Timer 3 count start synchronous circuit not selected Timer 3 count start synchronous circuit selected
I22
Interrupt valid waveform for INT1 pin/ return level selection bit (Note 2)
I21 I20
INT1 pin edge detection circuit control bit INT1 pin Timer 3 count start synchronous circuit selection bit
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: When the contents of I12, I13 I22 and I23 are changed, the external interrupt request flag (EXF0, EXF1) may be set.
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CLOCK CONTROL
The clock control circuit consists of the following circuits. * On-chip oscillator (internal oscillator) * Ceramic resonator * RC oscillation circuit * Quartz-crystal oscillation circuit * Multi-plexer (clock selection circuit) * Frequency divider * Internal clock generating circuit
The system clock and the instruction clock are generated as the source clock for operation by these circuits. Figure 47 shows the structure of the clock control circuit. The 4554 Group operates by the on-chip oscillator clock (f(RING)) which is the internal oscillator after system is released from reset. Also, the ceramic resonator or the RC oscillation can be used for the main clock (f(XIN)) of the 4554 Group. The CMCK instruction or CRCK instruction is executed to select the ceramic resonator or RC oscillator, respectively. The quartz-crystal oscillator can be used for sub-clock (f(XCIN)).
Division circuit Divided by 8 On-chip oscillator (internal oscillator) (Note 1) MR0 0 1 QS QR RC oscillation QS XIN XOUT Divided by4 Divided by 2
MR3, MR2 11 10 01 00 System clock (STCK) Internal clock generating circuit (divided by 3)
Instruction clock (INSTCK) Wait time control circuit (Note 2) Program start signal
Multi-plexer
CRCK instruction
Ceramic resonance
R
QS MR1 XCIN XCOUT Quartz-crystal oscillation QS R QS R R
CMCK instruction
Internal reset signal T5F flag Key-on wakeup signal EPOF instruction + POF instruction
EPOF instruction + POF2 instruction
Notes 1: System operates by the on-chip oscillator clock (f(RING)) until the CMCK or CRCK instruction is executed after system is released from reset. 2: The wait time control circuit is used to generate the time required to stabilize the f(XIN) or f(XCIN) oscillation. After the certain oscillation stabilizing wait time elapses, the program start signal is output. This circuit operates when system is released from reset or returned from RAM back-up.
Fig. 47 Clock control circuit structure
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4554 Group
(1) Main clock generating circuit (f(XIN))
The ceramic resonator or RC oscillation can be used for the main clock of this MCU. After system is released from reset, the MCU starts operation by the clock output from the on-chip oscillator which is the internal oscillator. When the ceramic resonator is used, execute the CMCK instruction. When the RC oscillation is used, execute the CRCK instruction. The oscillation circuit by the CMCK or CRCK instruction can be selected only at once. The oscillation circuit corresponding to the first executed one of these two instructions is valid. Other oscillation circuit and the on-chip oscillator stop. Execute the CMCK or the CRCK instruction in the initial setting routine of program (executing it in address 0 in page 0 is recommended). Also, when the CMCK or the CRCK instruction is not executed in program, this MCU operates by the on-chip oscillator.
Reset On-chip oscillator operation CMCK instruction CRCK instruction
* Ceramic resonator valid * RC oscillation valid * On-chip oscillator stop * On-chip oscillator stop * Ceramic resonator stop * RC oscillation stop
Fig. 48 Switch to ceramic resonance/RC oscillation
M34554
(2) On-chip oscillator operation
When the MCU operates by the on-chip oscillator as the main clock (f(XIN)) without using the ceramic resonator or the RC oscillator, connect XIN pin to VSS and leave XOUT pin open (Figure 49). The clock frequency of the on-chip oscillator depends on the supply voltage and the operation temperature range. Be careful that variable frequencies when designing application products.
the CMCK instruction * Do not use instruction in program. and CRCK
XOUT
XIN
Fig. 49 Handling of XIN and XOUT when operating on-chip oscillator
M34554
(3) Ceramic resonator
When the ceramic resonator is used as the main clock (f(XIN)), connect the ceramic resonator and the external circuit to pins XIN and XOUT at the shortest distance. Then, execute the CMCK instruction. A feedback resistor is built in between pins XIN and XOUT (Figure 50).
CIN XIN XOUT
* Execute the CMCK instruction in program.
Note: Externally connect a damping resistor Rd depending on the oscillation frequency. Rd (A feedback resistor is built-in.) Use the resonator manufacturer's recommended value COUT because constants such as capacitance depend on the resonator.
(4) RC oscillation
When the RC oscillation is used as the main clock (f(XIN)), connect the XIN pin to the external circuit of resistor R and the capacitor C at the shortest distance and leave XOUT pin open. Then, execute the CRCK instruction (Figure 51). The frequency is affected by a capacitor, a resistor and a microcomputer. So, set the constants within the range of the frequency limits.
Fig. 50 Ceramic resonator external circuit
M34554
R C
XIN
XOUT
* ExsercuuctteiotnhenCpRoCgKam. in t irr
Fig. 51 External RC oscillation circuit
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4554 Group
(5) External clock
When the external clock signal is used as the main clock (f(XIN)), connect the XIN pin to the clock source and leave XOUT pin open. Then, execute the CMCK instruction (Figure 52). Be careful that the maximum value of the oscillation frequency when using the external clock differs from the value when using the ceramic resonator (refer to the recommended operating condition). Also, note that the power down mode (POF and POF2 instructions) cannot be used when using the external clock.
M34554
* ExsercuuctteiotnhenCpMoCKam. in t i r gr
XOUT VDD VSS
XIN
External oscillation circuit Fig. 52 External clock input circuit
(6) Sub-clock generating circuit f(XCIN)
Sub-clock signal f(XCIN) is obtained by externally connecting a quartz-crystal oscillator. Connect this external circuit and a quartzcrystal oscillator to pins XCIN and XCOUT at the shortest distance. A feedback resistor is built in between pins XCIN and XCOUT (Figure 53).
M34554
XCIN
(7) Clock control register MR
Register MR controls system clock. Set the contents of this register through register A with the TMRA instruction. In addition, the TAMR instruction can be used to transfer the contents of register MR to register A.
CIN
Note: Externally connect a damping resistor Rd depending on the oscillation frequency. XCOUT (A feedback resistor is built-in.) Use the quartz-crystal manufacturer's recommended value Rd because constants such as capacitance depend on the resonator. COUT
Fig. 53 External quartz-crystal circuit Table 18 Clock control register MR Clock control register MR MR3 Operation mode selection bits MR2 MR1 MR0 Main clock oscillation circuit control bit System clock selection bit at reset : 11002 MR3 MR2 0 0 0 1 1 0 1 1 0 1 0 1 at power down : state retained R/W TAMR/ TMRA
Operation mode Through mode (frequency not divided) Frequency divided by 2 mode Frequency divided by 4 mode Frequency divided by 8 mode Main clock oscillation enabled Main clock oscillation stop Main clock (f(XIN) or f(RING)) Sub-clock (f(XCIN))
Note : "R" represents read enabled, and "W" represents write enabled.
ROM ORDERING METHOD
1.Mask ROM Order Confirmation Form* 2.Mark Specification Form* 3.Data to be written to ROM, in EPROM form (three identical copies) or one floppy disk. *For the mask ROM confirmation and the mark specifications, refer to the "Renesas Technology Corp." Homepage (http://www.renesas.com/en/rom).
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4554 Group
LIST OF PRECAUTIONS
Noise and latch-up prevention Connect a capacitor on the following condition to prevent noise and latch-up; * connect a bypass capacitor (approx. 0.1 F) between pins VDD and VSS at the shortest distance, * equalize its wiring in width and length, and * use relatively thick wire. In the One Time PROM version, CNVSS pin is also used as VPP pin. Accordingly, when using this pin, connect this pin to VSS through a resistor about 5 k (connect this resistor to CNVSS/ VPP pin as close as possible). Register initial values 1 The initial value of the following registers are undefined after system is released from reset. After system is released from reset, set initial values. * Register Z (2 bits) * Register D (3 bits) * Register E (8 bits) Register initial values 2 The initial value of the following registers are undefined at RAM backup. After system is returned from RAM back-up, set initial values. * Register Z (2 bits) * Register X (4 bits) * Register Y (4 bits) * Register D (3 bits) * Register E (8 bits) Stack registers (SKS) Stack registers (SKs) are eight identical registers, so that subroutines can be nested up to 8 levels. However, one of stack registers is used respectively when using an interrupt service routine and when executing a table reference instruction. Accordingly, be careful not to over the stack when performing these operations together. Prescaler Stop counting and then execute the TABPS instruction to read from prescaler data. Stop counting and then execute the TPSAB instruction to set prescaler data. Timer count source Stop timer 1, 2, 3, 4 and LC counting to change its count source. Reading the count value Stop timer 1, 2, 3 or 4 counting and then execute the data read instruction (TAB1, TAB2, TAB3, TAB4) to read its data. Writing to the timer Stop timer 1, 2, 3, 4 or LC counting and then execute the data write instruction (T1AB, T2AB, T3AB, T4AB, TLCA) to write its data.
Writing to reload register R1, R3, R4H When writing data to reload register R1, reload register R3 or reload regiser R4H while timer 1, timer 3 or timer 4 is operating, avoid a timing when timer 1, timer 3 or timer 4 underflows.
10
Timer 4 Avoid a timing when timer 4 underflows to stop timer 4. When "H" interval extension function of the PWM signal is set to be "valid", set "1" or more to reload register R4H. Timer 5 Stop timer 5 counting to change its count source. Timer input/output pin Set the port C output latch to "0" to output the PWM signal from C/CNTR pin.
11
12
13 Watchdog timer * The watchdog timer function is valid after system is released from reset. When not using the watchdog timer function, execute the DWDT instruction and the WRST instruction continuously, and clear the WEF flag to "0" to stop the watchdog timer function. * The watchdog timer function is valid after system is returned from the power down state. When not using the watchdog timer function, execute the DWDT instruction and the WRST instruction continuously every system is returned from the power down state, and stop the watchdog timer function. * When the watchdog timer function and power down function are used at the same time, execute the WRST instruction before system enters into the power down state and initialize the flag WDF1.
14 Multifunction * Be careful that the output of ports D8 and D9 can be used even when INT0 and INT1 pins are selected. * Be careful that the input/output of port D7 can be used even when input of CNTR0 pin are selected. * Be careful that the input of port D7 can be used even when output of CNTR0 pin are selected. * Be careful that the "H" output of port C can be used even when output of CNTR1 pin are selected.
15
Program counter Make sure that the PCH does not specify after the last page of the built-in ROM.
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16
D8/INT0 pin Note [1] on bit 3 of register I1 When the input of the INT0 pin is controlled with the bit 3 of register I1 in software, be careful about the following notes. * Depending on the input state of the D8/INT0 pin, the external 0 interrupt request flag (EXF0) may be set when the bit 3 of register I1 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 0 of register V1 to "0" (refer to Figure 54) and then, change the bit 3 of register I1. In addition, execute the SNZ0 instruction to clear the EXF0 flag to "0" after executing at least one instruction (refer to Figure 54). Also, set the NOP instruction for the case when a skip is performed with the SNZ0 instruction (refer to Figure 54).
Note on bit 2 of register I1 When the interrupt valid waveform of the D8/INT0 pin is changed with the bit 2 of register I1 in software, be careful about the following notes. * Depending on the input state of the D8/INT0 pin, the external 0 interrupt request flag (EXF0) may be set when the bit 2 of register I1 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 0 of register V1 to "0" (refer to Figure 56) and then, change the bit 2 of register I1. In addition, execute the SNZ0 instruction to clear the EXF0 flag to "0" after executing at least one instruction (refer to Figure 56). Also, set the NOP instruction for the case when a skip is performed with the SNZ0 instruction (refer to Figure 56).
***
LA 4 TV1A LA 8 TI1A NOP SNZ0 NOP
; (02) ; The SNZ0 instruction is valid ........... ; (12) ; Control of INT0 pin input is changed ........................................................... ; The SNZ0 instruction is executed (EXF0 flag cleared) ...........................................................
LA 4 TV1A LA 12 TI1A NOP SNZ0 NOP
***
; (02) ; The SNZ0 instruction is valid ........... ; (12) ; Interrupt valid waveform is changed ........................................................... ; The SNZ0 instruction is executed (EXF0 flag cleared) ...........................................................
***
: these bits are not used here. Fig. 54 External 0 interrupt program example-1 Note [2] on bit 3 of register I1 When the bit 3 of register I1 is cleared to "0", the RAM back-up mode is selected and the input of INT0 pin is disabled, be careful about the following notes. * When the key-on wakeup function of INT0 pin is not used (register K20 = "0"), clear bits 2 and 3 of register I1 before system enters to the RAM back-up mode. (refer to Figure 55).
: these bits are not used here. Fig. 56 External 0 interrupt program example-3
LA 0 TI1A DI EPOF POF2
***
; (002) ; Input of INT0 disabled .....................
; RAM back-up
: these bits are not used here. Fig. 55 External 0 interrupt program example-2
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***
4554 Group
17
D9/INT1 pin Note [1] on bit 3 of register I2 When the input of the INT1 pin is controlled with the bit 3 of register I2 in software, be careful about the following notes. * Depending on the input state of the D9/INT1 pin, the external 1 interrupt request flag (EXF1) may be set when the bit 3 of register I2 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 1 of register V1 to "0" (refer to Figure 57) and then, change the bit 3 of register I2. In addition, execute the SNZ1 instruction to clear the EXF1 flag to "0" after executing at least one instruction (refer to Figure 57). Also, set the NOP instruction for the case when a skip is performed with the SNZ1 instruction (refer to Figure 57).
Note on bit 2 of register I2 When the interrupt valid waveform of the D9/INT1 pin is changed with the bit 2 of register I2 in software, be careful about the following notes. * Depending on the input state of the D9/INT1 pin, the external 1 interrupt request flag (EXF1) may be set when the bit 2 of register I2 is changed. In order to avoid the occurrence of an unexpected interrupt, clear the bit 1 of register V1 to "0" (refer to Figure 59) and then, change the bit 2 of register I2. In addition, execute the SNZ1 instruction to clear the EXF1 flag to "0" after executing at least one instruction (refer to Figure 59). Also, set the NOP instruction for the case when a skip is performed with the SNZ1 instruction (refer to Figure 59).
***
LA 4 TV1A LA 8 TI2A NOP SNZ1 NOP
; (02) ; The SNZ1 instruction is valid ........... ; (12) ; Control of INT1 pin input is changed ........................................................... ; The SNZ1 instruction is executed (EXF1 flag cleared) ...........................................................
LA 4 TV1A LA 12 TI2A NOP SNZ1 NOP
***
; (02) ; The SNZ1 instruction is valid ........... ; (12) ; Interrupt valid waveform is changed ........................................................... ; The SNZ1 instruction is executed (EXF1 flag cleared) ...........................................................
***
: these bits are not used here. Fig. 57 External 1 interrupt program example-1 Note [2] on bit 3 of register I2 When the bit 3 of register I2 is cleared to "0", the RAM back-up mode is selected and the input of INT1 pin is disabled, be careful about the following notes. * When the key-on wakeup function of INT1 pin is not used (register K22 = "0"), clear bits 2 and 3 of register I2 before system enters to the RAM back-up mode. (refer to Figure 58).
: these bits are not used here. Fig. 59 External 1 interrupt program example-3
LA 0 TI2A DI EPOF POF2
***
; (002) ; Input of INT1 disabled .....................
; RAM back-up
: these bits are not used here. Fig. 58 External 1 interrupt program example-2
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***
4554 Group
18
POF and POF2 instructions When the POF or POF2 instruction is executed continuously after the EPOF instruction, system enters the power down state. Note that system cannot enter the power down state when executing only the POF or POF2 instruction. Be sure to disable interrupts by executing the DI instruction before executing the EPOF instruction and the POF or POF2 instruction continuously. Power-on reset When the built-in power-on reset circuit is used, the time for the supply voltage to rise from 0 V to 2.0 V must be set to 100 s or less. If the rising time exceeds 100 s, connect a capacitor between the RESET pin and VSS at the shortest distance, and input "L" level to RESET pin until the value of supply voltage reaches the minimum operating voltage. Note on voltage drop detection circuit The voltage drop detection circuit detection voltage of this product is set up lower than the minimum value of the supply voltage of the recommended operating conditions. When the supply voltage of a microcomputer falls below to the minimum value of recommended operating conditions and regoes up (ex. battery exchange of an application product), depending on the capacity value of the bypass capacitor added to the power supply pin, the following case may cause program failure (Figure 60); supply voltage does not fall below to VRST, and its voltage re-goes up with no reset. In such a case, please design a system which supply voltage is once reduced below to VRST and re-goes up after that.
VDD Recommended operatng condition min.value VRST
21
Clock control Execute the CMCK or the CRCK instruction in the initial setting routine of program (executing it in address 0 in page 0 is recommended). The oscillation circuit by the CMCK or CRCK instruction can be selected only at once. The oscillation circuit corresponding to the first executed one of these two instruction is valid. Other oscillation circuits and the on-chip oscillator stop. On-chip oscillator The clock frequency of the on-chip oscillator depends on the supply voltage and the operation temperature range. Be careful that variable frequencies when designing application products. Also, the oscillation stabilize wait time after system is released from reset is generated by the on-chip oscillator clock. When considering the oscillation stabilize wait time after system is released from reset, be careful that the variable frequency of the on-chip oscillator clock. External clock When the external signal clock is used as the source oscillation (f(XIN)), note that the power down mode (POF and POF2 instructions) cannot be used. Difference between Mask ROM version and One Time PROM version Mask ROM version and One Time PROM version have some difference of the following characteristics within the limits of an electrical property by difference of a manufacture process, builtin ROM, and a layout pattern. * a characteristic value * a margin of operation * the amount of noise-proof * noise radiation, etc., Accordingly, be careful of them when swithcing. Note on Power Source Voltage When the power source voltage value of a microcomputer is less than the value which is indicated as the recommended operating conditions, the microcomputer does not operate normally and may perform unstable operation. In a system where the power source voltage drops slowly when the power source voltage drops or the power supply is turned off, reset a microcomputer when the supply voltage is less than the recommended operating conditions and design a system not to cause errors to the system by this unstable operation.
19
22
20
23
24
No reset Program failure may occur.
25
VDD Recommended operatng condition min.value VRST Reset
Normal operation
Fig. 60 VDD and VRST
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CONTROL REGISTERS
Interrupt control register V1 V13 V12 V11 V10 Timer 2 interrupt enable bit Timer 1 interrupt enable bit External 1 interrupt enable bit External 0 interrupt enable bit 0 1 0 1 0 1 0 1 at reset : 00002 at power down : 00002 R/W TAV1/TV1A
Interrupt disabled (SNZT2 instruction is valid) Interrupt enabled (SNZT2 instruction is invalid) Interrupt disabled (SNZT1 instruction is valid) Interrupt enabled (SNZT1 instruction is invalid) Interrupt disabled (SNZ1 instruction is valid) Interrupt enabled (SNZ1 instruction is invalid) Interrupt disabled (SNZ0 instruction is valid) Interrupt enabled (SNZ0 instruction is invalid) R/W TAV2/TV2A
Interrupt control register V2 V23 V22 V21 V20 Timer 4 interrupt enable bit Not used Timer 5 interrupt enable bit Timer 3 interrupt enable bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : 00002
Interrupt disabled (SNZT4 instruction is valid) Interrupt enabled (SNZT4 instruction is invalid) This bit has no function, but read/write is enabled. Interrupt disabled (SNZT5 instruction is valid) Interrupt enabled (SNZT5 instruction is invalid) Interrupt disabled (SNZT3 instruction is valid) Interrupt enabled (SNZT3 instruction is invalid) R/W TAI1/TI1A
Interrupt control register I1 I13 INT0 pin input control bit (Note 2) 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
INT0 pin input disabled INT0 pin input enabled Falling waveform/"L" level ("L" level is recognized with the SNZI0 instruction) Rising waveform/"H" level ("H" level is recognized with the SNZI0 instruction) One-sided edge detected Both edges detected Timer 1 count start synchronous circuit not selected Timer 1 count start synchronous circuit selected
I12
Interrupt valid waveform for INT0 pin/ return level selection bit (Note 2)
I11 I10
INT0 pin edge detection circuit control bit INT0 pin Timer 1 count start synchronous circuit selection bit
Interrupt control register I2 I23 INT1 pin input control bit (Note 2) 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
R/W TAI2/TI2A
INT1 pin input disabled INT1 pin input enabled Falling waveform/"L" level ("L" level is recognized with the SNZI1 instruction) Rising waveform/"H" level ("H" level is recognized with the SNZI1 instruction) One-sided edge detected Both edges detected Timer 3 count start synchronous circuit not selected Timer 3 count start synchronous circuit selected
I22
Interrupt valid waveform for INT1 pin/ return level selection bit (Note 2)
I21 I20
INT1 pin edge detection circuit control bit INT1 pin Timer 3 count start synchronous circuit selection bit
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: When the contents of I12, I13 I22 and I23 are changed, the external interrupt request flag (EXF0, EXF1) may be set.
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4554 Group
Clock control register MR MR3 Operation mode selection bits MR2 MR1 MR0 Main clock oscillation circuit control bit System clock selection bit
at reset : 11002 MR3 MR2 0 0 0 1 1 0 1 1 0 1 0 1
at power down : state retained Operation mode
R/W TAMR/ TMRA
Through mode Frequency divided by 2 mode Frequency divided by 4 mode Frequency divided by 8 mode Main clock oscillation enabled Main clock oscillation stop Main clock (f(XIN) or f(RING)) Sub-clock (f(XCIN)) W TPAA
Timer control register PA PA0 Prescaler control bit 0 1
at reset : 02 Stop (state initialized) Operating
at power down : 02
Timer control register W1 W13 W12 W11 Timer 1 count source selection bits W10 Timer 1 count auto-stop circuit selection bit (Note 2) Timer 1 control bit
at reset : 00002 0 1 0 1 W11 W10 0 0 0 1 1 0 1 1
at power down : state retained
R/W TAW1/TW1A
Timer 1 count auto-stop circuit not selected Timer 1 count auto-stop circuit selected Stop (state retained) Operating Count source Instruction clock (INSTCK) Prescaler output (ORCLK) Timer 5 underflow signal (T5UDF) CNTR0 input R/W TAW2/TW2A
Timer control register W2 W23 W22 W21 Timer 2 count source selection bits W20 CNTR0 output control bit Timer 2 control bit
at reset : 00002 0 1 0 1 W21 W20 0 0 0 1 1 0 1 1
at power down : state retained
Timer 1 underflow signal divided by 2 output Timer 2 underflow signal divided by 2 output Stop (state retained) Operating Count source System clock (STCK) Prescaler output (ORCLK) Timer 1 underflow signal (T1UDF) PWM signal (PWMOUT) R/W TAW3/TW3A
Timer control register W3 W33 W32 W31 Timer 3 count source selection bits (Note 4) Timer 3 count auto-stop circuit selection bit (Note 3) Timer 3 control bit
at reset : 00002 0 1 0 1 W31 W30 0 0 0 1 1 0 1 1
at power down : state retained
W30
Timer 3 count auto-stop circuit not selected Timer 3 count auto-stop circuit selected Stop (state retained) Operating Count source PWM signal (PWMOUT) Prescaler output (ORCLK) Timer 2 underflow signal (T2UDF) CNTR1 input
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: This function is valid only when the timer 1 count start synchronous circuit is selected (I10="1"). 3: This function is valid only when the timer 3 count start synchronous circuit is selected (I20="1"). 4: Port C output is invalid when CNTR1 input is selected for the timer 3 count source.
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4554 Group
Timer control register W4 W43 W42 W41 W40 CNTR1 output control bit PWM signal "H" interval expansion function control bit Timer 4 control bit Timer 4 count source selection bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : 00002
R/W TAW4/TW4A
CNTR1 output invalid CNTR1 output valid PWM signal "H" interval expansion function invalid PWM signal "H" interval expansion function valid Stop (state retained) Operating XIN input Prescaler output (ORCLK) divided by 2
Timer control register W5 W53 W52 W51 Timer 5 count value selection bits W50 Not used Timer 5 control bit
at reset : 00002 0 1 0 1 W51 W50 0 0 0 1 1 0 1 1
at power down : state retained
R/W TAW5/TW5A
This bit has no function, but read/write is enabled. Stop (state initialized) Operating Count value Underflow occurs every 8192 counts Underflow occurs every 16384 counts Underflow occurs every 32768 counts Underflow occurs every 65536 counts R/W TAW6/TW6A
Timer control register W6 W63 W62 W61 W60 Timer LC control bit Timer LC count source selection bit CNTR1 output auto-control circuit selection bit D7/CNTR0 pin function selection bit (Note 2) 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
Stop (state retained) Operating Bit 4 (T54) of timer 5 Prescaler output (ORCLK) CNTR1 output auto-control circuit not selected CNTR1 output auto-control circuit selected D7(I/O)/CNTR0 input CNTR input/output/D7 (input)
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: CNTR0 input is valid only when CNTR0 input is selected for the timer 1 count source.
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4554 Group
LCD control register L1 L13 L12 L11 LCD duty and bias selection bits L10 Internal dividing resistor for LCD power supply selection bit (Note 2) LCD control bit 0 1 0 1
at reset : 00002 2r 3, 2r 2 r 3, r 2 Off On Duty
at power down : state retained
R/W TAL1/TL1A
L11 L10 0 0 0 1 1 0 1 1
Bias Not available 1/2 1/3 1/3 W TL2A
1/2 1/3 1/4
LCD control register L2 L23 L22 L21 L20 VLC3/SEG0 pin function switch bit (Note 3) VLC2/SEG1 pin function switch bit (Note 4) VLC1/SEG2 pin function switch bit (Note 4) Internal dividing resistor for LCD power supply control bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
SEG0 VLC3 SEG1 VLC2 SEG2 VLC1 Internal dividing resistor valid Internal dividing resistor invalid
LCD control register L3 L33 L32 L31 L30 SEG24/P33-SEG27/P30 pin function switch bit SEG28/P23, SEG29/P22 pin function switch bit SEG30/P21 pin function switch bit SEG31/P20 pin function switch bit 0 1 0 1 0 1 0 1
at reset : 00002 SEG24-SEG27 P33-P30 SEG28, SEG29 P23, P22 SEG30 P21 SEG31 P20
at power down : state retained
W TL3A
Notes 1: "R" represents read enabled, and "W" represents write enabled. 2: "r (resistor) multiplied by 3" is used at 1/3 bias, and "r multiplied by 2" is used at 1/2 bias. 3: VLC3 is connected to VDD internally when SEG0 pin is selected. 4: Use internal dividing resistor when SEG1 and SEG2 pins are selected.
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4554 Group
Pull-up control register PU0 PU03 PU02 PU01 PU00 Port P03 pull-up transistor control bit Port P02 pull-up transistor control bit Port P01 pull-up transistor control bit Port P00 pull-up transistor control bit 0 1 0 1 0 1 0 1
at reset : 00002 Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON
at power down : state retained
R/W TAPU0/ TPU0A
Pull-up control register PU1 PU13 PU12 PU11 PU10 Port P13 pull-up transistor control bit Port P12 pull-up transistor control bit Port P11 pull-up transistor control bit Port P10 pull-up transistor control bit 0 1 0 1 0 1 0 1
at reset : 00002 Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON Pull-up transistor OFF Pull-up transistor ON
at power down : state retained
R/W TAPU1/ TPU1A
Port output structure control register FR0 FR03 FR02 FR01 FR00 Ports P12, P13 output structure selection bit Ports P10, P11 output structure selection bit Ports P02, P03 output structure selection bit Ports P00, P01 output structure selection bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
W TFR0A
N-channel open-drain output CMOS output N-channel open-drain output CMOS output N-channel open-drain output CMOS output N-channel open-drain output CMOS output at reset : 00002 at power down : state retained W TFR1A
Port output structure control register FR1 FR13 FR12 FR11 FR10 Port D3 output structure selection bit Port D2 output structure selection bit Port D1 output structure selection bit Port D0 output structure selection bit 0 1 0 1 0 1 0 1
N-channel open-drain output CMOS output N-channel open-drain output CMOS output N-channel open-drain output CMOS output N-channel open-drain output CMOS output W TFR2A
Port output structure control register FR2 FR23 FR22 FR21 FR20 Port D7/CNTR0 output structure selection bit Port D6 output structure selection bit Port D5 output structure selection bit Port D4 output structure selection bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
N-channel open-drain output CMOS output N-channel open-drain output CMOS output N-channel open-drain output CMOS output N-channel open-drain output CMOS output
Note: "R" represents read enabled, and "W" represents write enabled.
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4554 Group
Key-on wakeup control register K0 K03 K02 K01 K00 Port P03 key-on wakeup control bit Port P02 key-on wakeup control bit Port P01 key-on wakeup control bit Port P00 key-on wakeup control bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
R/W TAK0/ TK0A
Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used R/W TAK1/ TK1A
Key-on wakeup control register K1 K13 K12 K11 K10 Port P13 key-on wakeup control bit Port P12 key-on wakeup control bit Port P11 key-on wakeup control bit Port P10 key-on wakeup control bit 0 1 0 1 0 1 0 1
at reset : 00002
at power down : state retained
Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used Key-on wakeup not used Key-on wakeup used at reset : 00002 at power down : state retained R/W TAK2/ TK2A
Key-on wakeup control register K2 K23 K22 K21 K20 INT1 pin return condition selection bit INT1 pin key-on wakeup control bit INT0 pin return condition selection bit INT0 pin key-on wakeup control bit 0 1 0 1 0 1 0 1
Returned by level Returned by edge Key-on wakeup invalid Key-on wakeup valid Returned by level Returned by edge Key-on wakeup invalid Key-on wakeup valid
Note: "R" represents read enabled, and "W" represents write enabled.
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4554 Group
INSTRUCTIONS
The 4554 Group has the 136 instructions. Each instruction is described as follows; (1) Index list of instruction function (2) Machine instructions (index by alphabet) (3) Machine instructions (index by function) (4) Instruction code table Symbol A B DR E V1 V2 I1 I2 MR PA W1 W2 W3 W4 W5 W6 L1 L2 L3 PU0 PU1 FR0 FR1 FR2 FR3 K0 K1 K2 X Y Z DP PC PCH PCL SK SP CY RPS R1 R2 R3 R4L R4H RLC Contents Register A (4 bits) Register B (4 bits) Register DR (3 bits) Register E (8 bits) Interrupt control register V1 (4 bits) Interrupt control register V2 (4 bits) Interrupt control register I1 (4 bits) Interrupt control register I2 (4 bits) Clock control register MR (4 bits) Timer control register PA (1 bit) Timer control register W1 (4 bits) Timer control register W2 (4 bits) Timer control register W3 (4 bits) Timer control register W4 (4 bits) Timer control register W5 (4 bits) Timer control register W6 (4 bits) LCD control register L1 (4 bits) LCD control register L2 (4 bits) LCD control register L3 (4 bits) Pull-up control register PU0 (4 bits) Pull-up control register PU1 (4 bits) Port output format control register FR0 (4 bits) Port output format control register FR1 (4 bits) Port output format control register FR2 (4 bits) Port output format control register FR3 (4 bits) Key-on wakeup control register K0 (4 bits) Key-on wakeup control register K1 (4 bits) Key-on wakeup control register K2 (4 bits) Register X (4 bits) Register Y (4 bits) Register Z (2 bits) Data pointer (10 bits) (It consists of registers X, Y, and Z) Program counter (14 bits) High-order 7 bits of program counter Low-order 7 bits of program counter Stack register (14 bits 8) Stack pointer (3 bits) Carry flag Prescaler reload register (8 bits) Timer 1 reload register (8 bits) Timer 2 reload register (8 bits) Timer 3 reload register (8 bits) Timer 4 reload register (8 bits) Timer 4 reload register (8 bits) Timer LC reload register (4 bits)
SYMBOL
The symbols shown below are used in the following list of instruction function and the machine instructions.
Symbol PS T1 T2 T3 T4 T5 TLC T1F T2F T3F T4F T5F WDF1 WEF INTE EXF0 EXF1 P D P0 P1 P2 P3 C x y z p n i j A3A2A1A0
Contents Prescaler Timer 1 Timer 2 Timer 3 Timer 4 Timer 5 Timer LC Timer 1 interrupt request flag Timer 2 interrupt request flag Timer 3 interrupt request flag Timer 4 interrupt request flag Timer 5 interrupt request flag Watchdog timer flag Watchdog timer enable flag Interrupt enable flag External 0 interrupt request flag External 1 interrupt request flag Power down flag Port D (10 bits) Port P0 (4 bits) Port P1 (4 bits) Port P2 (4 bits) Port P3 (4 bits) Port C (1 bit) Hexadecimal variable Hexadecimal variable Hexadecimal variable Hexadecimal variable Hexadecimal constant Hexadecimal constant Hexadecimal constant Binary notation of hexadecimal variable A (same for others) Direction of data movement Data exchange between a register and memory Decision of state shown before "?" Contents of registers and memories Negate, Flag unchanged after executing instruction RAM address pointed by the data pointer Label indicating address a6 a5 a4 a3 a2 a1 a0 Label indicating address a6 a5 a4 a3 a2 a1 a0 in page p5 p4 p3 p2 p1 p0 Hex. C + Hex. number x
? () -- M(DP) a p, a C + x
Note : Some instructions of the 4554 Group has the skip function to unexecute the next described instruction. The 4554 Group just invalidates the next instruction when a skip is performed. The contents of program counter is not increased by 2. Accordingly, the number of cycles does not change even if skip is not performed. However, the cycle count becomes "1" if the TABP p, RT, or RTS instruction is skipped.
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4554 Group
INDEX LIST OF INSTRUCTION FUNCTION
GroupMnemonic ing TAB TBA TAY TYA TEAB (A) (B) (B) (A) (A) (Y) (Y) (A) (E7-E4) (B) (E3-E0) (A) TABE (B) (E7-E4) (A) (E3-E0) TDA TAD (DR2-DR0) (A2-A0) (A2-A0) (DR2-DR0) (A3) 0 TAZ (A1, A0) (Z1, Z0) (A3, A2) 0 AM TAX TASP (A) (X) (A2-A0) (SP2-SP0) (A3) 0 LXY x, y (X) x x = 0 to 15 (Y) y y = 0 to 15 84, 112 102, 112 AMC 100, 112 (A) (A) + (M(DP)) + (CY) (CY) Carry 78, 114 (A) (A) + (M(DP)) 78, 114 102, 112 103, 112 97, 112 96, 112 TABP p (SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (PCL) (DR2-DR0, A3-A0) (B) (ROM(PC))7-4 (A) (ROM(PC))3-0 (PC) (SK(SP)) (SP) (SP) - 1 96, 114 Function Page 95, 112 GroupMnemonic ing XAMI j Function (A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (Y) (Y) + 1 TMA j (M(DP)) (A) (X) (X)EXOR(j) j = 0 to 15 LA n (A) n n = 0 to 15 84, 114 106, 112 Page 111, 112
103, 112 102, 112 110, 112 103, 112
Register to register transfer
Arithmetic operation
RAM to register transfer
An
(A) (A) + n n = 0 to 15 (A) (A) AND (M(DP)) (A) (A) OR (M(DP)) (CY) 1 (CY) 0 (CY) = 0 ? (A) (A) CY A3A2A1A0
78, 114
RAM addresses
AND OR SC
78, 114 85, 114 89, 114 87, 114 93, 114 80, 114 86, 114
LZ z INY DEY TAM j
(Z) z z = 0 to 3 (Y) (Y) + 1 (Y) (Y) - 1 (A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15
84, 112 83, 112 81, 112 99, 112
RC SZC CMA RAR
RAM to register transfer
XAM j
(A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15
111, 112
XAMD j
(A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (Y) (Y) - 1
111, 112
Note: p is 0 to 63 for M34554M8, p is 0 to 95 for M34554MC and p is 0 to 127 for M34554ED.
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4554 Group
INDEX LIST OF INSTRUCTION FUNCTION (continued)
GroupMnemonic ing SB j Function (Mj(DP)) 1 j = 0 to 3 (Mj(DP)) 0 j = 0 to 3 SZB j (Mj(DP)) = 0 ? j = 0 to 3 (A) = (M(DP)) ? (A) = n ? n = 0 to 15 Ba (PCL) a6-a0 (PCH) p (PCL) a6-a0 BLA p (PCH) p (PCL) (DR2-DR0, A3-A0) BM a (SP) (SP) + 1 (SK(SP)) (PC) (PCH) 2 (PCL) a6-a0 TV2A TAI1 BML p, a (SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (PCL) a6-a0 BMLA p (SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (PCL) (DR2-DR0, A3-A0) TAW1 RTI (PC) (SK(SP)) (SP) (SP) - 1 88, 116 TW1A (W1) (A) (A) (W2) (W2) (A) (A) (W3) (W3) (A) 109, 118 101, 118 109, 118 101, 118 109, 118 (A) (W1) 100, 118 TPAA (PA0) (A0) 107, 118 80, 116 TAI2 TI2A (A) (I2) (I2) (A) 97, 118 104, 118 80, 116 TI1A (I1) (A) 104, 118 (V2) (A) (A) (I1) 109, 118 97, 118 79, 116 79, 116 79, 116 79, 116 93, 114 SNZ1 Page 88, 114 GroupMnemonic ing DI EI RB j 86, 114 SNZ0 V10 = 0: (EXF0) = 1 ? After skipping, (EXF0) 0 V10 = 1: SNZ0 = NOP V11 = 0: (EXF1) = 1 ? After skipping, (EXF1) 0 V11 = 1: SNZ1 = NOP SEA n 89, 114 SNZI0 I12 = 1 : (INT0) = "H" ? I12 = 0 : (INT0) = "L" ? 90, 118 90, 118 90, 118 (INTE) 0 (INTE) 1 Function Page 81, 118 82, 118
Bit operation
Comparison operation
SEAM
90, 114
Interrupt operation
Branch operation
SNZI1
I22 = 1 : (INT1) = "H" ? I22 = 0 : (INT1) = "L" ?
91, 118
BL p, a
TAV1 TV1A TAV2
(A) (V1) (V1) (A) (A) (V2)
100, 118 108, 118 100, 118
Subroutine operation
RT
(PC) (SK(SP)) (SP) (SP) - 1
87, 116
Timer operation
TAW2 TW2A TAW3 TW3A
Return operation
RTS
(PC) (SK(SP)) (SP) (SP) - 1
88, 116
Note: p is 0 to 63 for M34554M8, p is 0 to 95 for M34554MC and p is 0 to 127 for M34554ED.
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4554 Group
INDEX LIST OF INSTRUCTION FUNCTION (continued)
Grouping Mnemonic TAW4 TW4A TAW5 TW5A TAW6 TW6A TABPS (A) (W4) (W4) (A) (A) (W5) (W5) (A) (A) (W6) (W6) (A) (B) (TPS7-TPS4) (A) (TPS3-TPS0) TPSAB (RPS7-RPS4) (B) (TPS7-TPS4) (B) (RPS3-RPS0) (A) (TPS3-TPS0) (A) TAB1 (B) (T17-T14) (A) (T13-T10) 95, 120 107, 120 Function Page 101, 118 110, 118 TR1AB 101, 120 110, 120 102, 120 T4R4L 110, 120 (T47-T44) (R4L7-R4L4) (T43-T40) (R4L3-R4L0) 95, 120 TR3AB (R17-R14) (B) (R13-R10) (A) (R37-R34) (B) (R33-R30) (A) 108, 120 108, 120 GroupMnemonic ing T4HAB Function (R4H7-R4H4) (B) (R4H3-R4H0) (A) Page 94, 120
Timer operation
97, 120
TLCA SNZT1
(LC) (A) V12 = 0: (T1F) = 1 ? After skipping, (T1F) 0
106, 120 91, 122
SNZT2
V13 = 0: (T2F) = 1 ? After skipping, (T2F) 0
91, 122
SNZT3
V20 = 0: (T3F) = 1 ? After skipping, (T3F) 0
92, 122
Timer operation
T1AB
(R17-R14) (B) (T17-T14) (B) (R13-R10) (A) (T13-T10) (A)
93, 120
SNZT4
V23 = 0: (T4F) = 1 ? After skipping, (T4F) 0
92, 122
SNZT5 95, 120 IAP0 94, 120 OP0A IAP1 OP1A
V21 = 0: (T5F) = 1 ? After skipping, (T5F) 0
92, 122
TAB2
(B) (T27-T24) (A) (T23-T20) (R27-R24) (B) (T27-T24) (B) (R23-R20) (A) (T23-T20) (A)
(A) (P0) (P0) (A) (A) (P1) (P1) (A) (A) (P2) (A) (P3)
82, 122 85, 122 83, 122 85, 122 83, 122 83, 122
T2AB
(A) (T33-T30) T3AB (R37-R34) (B) (T37-T34) (B) (R33-R30) (A) (T33-T30) (A) TAB4 (B) (T47-T44) (A) (T43-T40) T4AB (R4L7-R4L4) (B) (T47-T44) (B) (R4L3-R4L0) (A) (T43-T40) (A) 94, 120 96, 120 94, 120
Input/Output operation
TAB3
(B) (T37-T34)
96, 120
IAP2 IAP3
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4554 Group
INDEX LIST OF INSTRUCTION FUNCTION (continued)
Grouping Mnemonic CLD RD (D) 1 (D(Y)) 0 (Y) = 0 to 9 SD (D(Y)) 1 (Y) = 0 to 9 (D(Y)) = 0 ? (Y) = 0 to 7 POF RCP SCP TAPU0 (C) 0 (C) 1 (A) (PU0) (PU0) (A) (A) (PU1) (PU1) (A) (A) (K0) (K0) (A) (A) (K1) (K1) (A) (A) (K2) (K2) (A) (FR0) (A) (FR1) (A) (FR2) (A) Ceramic resonator selected RC oscillator selected (A) (MR) (MR) (A) 87, 122 POF2 89, 122 EPOF 99, 122 107, 122 99, 122 108, 122 98, 124 105, 124 SBK* 98, 124 105, 124 98, 124 Note: *(RBK, SBK) cannot be used in the M34554M8. TK2A TFR0A TFR1A TFR2A CMCK CRCK TAMR TMRA 105, 124 103, 124 104, 124 104, 124 81, 124 81, 124 99, 124 107, 124 SVDE When TABP p instruction is executed, P6 1 At power down mode, voltage drop detection circuit valid 92, 146 SNZP DWDT POF, POF2 instructions valid (P) = 1 ? Stop of watchdog timer function enabled (WDF1) = 1 ? After skipping, (WDF1) 0 RBK* When TABP p instruction is executed, P6 0 114, 146 115, 124 123, 124 112, 146 Transition to RAM back-up mode 107, 124 Transition to clock operating mode 108, 124 89, 122 Function Page 80, 122 GroupMnemonic ing TAL1 (A) (L1) (L1) (A) (L2) (A) (L3) (A) (PC) (PC) + 1 Function Page 116, 124 124, 124 124, 124 113, 124 128, 124
87, 122
LCD operation Other operation
TL1A TL2A TL3A
SZD
93, 122
NOP
Input/Output operation
TPU0A TAPU1 TPU1A TAK0 TK0A TAK1 TK1A TAK2
WRST
116, 146
106, 146
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Clock operation
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4554 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET)
A n (Add n and accumulator)
Instruction code D9 0 0 0 1 1 0 n n n D0 n
2
0
6
n
Number of words
16
Number of cycles 1
Flag CY -
Skip condition Overflow = 0
1
Operation:
(A) (A) + n n = 0 to 15
Grouping: Arithmetic operation Description: Adds the value n in the immediate field to register A, and stores a result in register A. The contents of carry flag CY remains unchanged. Skips the next instruction when there is no overflow as the result of operation. Executes the next instruction when there is overflow as the result of operation.
AM (Add accumulator and Memory)
Instruction code D9 0 0 0 0 0 0 1 0 1 D0 0
2
0
0
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (A) + (M(DP))
Grouping: Arithmetic operation Description: Adds the contents of M(DP) to register A. Stores the result in register A. The contents of carry flag CY remains unchanged.
AMC (Add accumulator, Memory and Carry)
Instruction code D9 0 0 0 0 0 0 1 0 1 D0 1
2
0
0
B
Number of words
16
Number of cycles 1
Flag CY 0/1
Skip condition -
1
Operation:
(A) (A) + (M(DP)) + (CY) (CY) Carry
Grouping: Arithmetic operation Description: Adds the contents of M(DP) and carry flag CY to register A. Stores the result in register A and carry flag CY.
AND (logical AND between accumulator and memory)
Instruction code D9 0 0 0 0 0 1 1 0 0 D0 0
2
0
1
8
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (A) AND (M(DP))
Grouping: Arithmetic operation Description: Takes the AND operation between the contents of register A and the contents of M(DP), and stores the result in register A.
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4554 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
B a (Branch to address a)
Instruction code D9 0 1 1 D0 a6 a5 a4 a3 a2 a1 a0
2
1
8 +a
a
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(PCL) a6 to a0
Grouping: Branch operation Description: Branch within a page : Branches to address a in the identical page. Note: Specify the branch address within the page including this instruction.
BL p, a (Branch Long to address a in page p)
Instruction code D9 0 1 Operation: 0 1 1 1 D0 p4 p3 p2 p1 p0
2
0
2 +p
E +p p +a
p
Number of words
16
Number of cycles 2
Flag CY -
Skip condition -
2
p6 p5 a6 a5 a4 a3 a2 a1 a0 2
a 16
(PCH) p (PCL) a6 to a0
Grouping: Branch operation Description: Branch out of a page : Branches to address a in page p. Note: p is 0 to 63 for M34554M8, and p is 0 to 95 for M34554MC, and p is 0 to 127 for M34554ED.
BLA p (Branch Long to address (D) + (A) in page p)
Instruction code D9 0 1 Operation: 0 0 0 0 1 0 0 0 0 D0 0
2
0
2 +p
1 p
0
Number of words
16
Number of cycles 2
Flag CY -
Skip condition -
2
p6 p5 p4 0
p3 p2 p1 p0 2
p 16
(PCH) p (PCL) (DR2-DR0, A3-A0)
Grouping: Branch operation Description: Branch out of a page : Branches to address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers D and A in page p. Note: p is 0 to 63 for M34554M8, and p is 0 to 95 for M34554MC, and p is 0 to 127 for M34554ED.
BM a (Branch and Mark to address a in page 2)
Instruction code D9 0 1 0 D0 a6 a5 a4 a3 a2 a1 a0
2
1
a
a
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(SP) (SP) + 1 (SK(SP)) (PC) (PCH) 2 (PCL) a6-a0
Grouping: Subroutine call operation Description: Call the subroutine in page 2 : Calls the subroutine at address a in page 2. Note: Subroutine extending from page 2 to another page can also be called with the BM instruction when it starts on page 2. Be careful not to over the stack because the maximum level of subroutine nesting is 8.
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BML p, a (Branch and Mark Long to address a in page p)
Instruction code D9 0 1 Operation: 0 1 1 0 D0 p4 p3 p2 p1 p0
2
0
2 +p
C +p p +a
p
Number of words
16
Number of cycles 2
Flag CY -
Skip condition -
2
p6 p5 a6 a5 a4 a3 a2 a1 a0 2
a 16
(SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (PCL) a6-a0
Grouping: Subroutine call operation Description: Call the subroutine : Calls the subroutine at address a in page p. Note: p is 0 to 63 for M34554M8, and p is 0 to 95 for M34554MC, and p is 0 to 127 for M34554ED. Be careful not to over the stack because the maximum level of subroutine nesting is 8.
BMLA p (Branch and Mark Long to address (D) + (A) in page p)
Instruction code D9 0 1 Operation: 0 0 0 1 1 0 0 0 0 D0 0
2
0
2 +p
3 p
0
Number of words
16
Number of cycles 2
Flag CY -
Skip condition -
2
p6 p5 p4 0
p3 p2 p1 p0 2
p 16
(SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (PCL) (DR2-DR0, A3-A0)
Grouping: Subroutine call operation Description: Call the subroutine : Calls the subroutine at address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers D and A in page p. Note: p is 0 to 63 for M34554M8, and p is 0 to 95 for M34554MC, and p is 0 to 127 for M34554ED. Be careful not to over the stack because the maximum level of subroutine nesting is 8.
CLD (CLear port D)
Instruction code D9 0 0 0 0 0 1 0 0 0 D0 1
2
0
1
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(D) 1
Grouping: Input/Output operation Description: Sets (1) to port D.
CMA (CoMplement of Accumulator)
Instruction code D9 0 0 0 0 0 1 1 1 0 D0 0
2
0
1
C 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(A) (A)
Grouping: Arithmetic operation Description: Stores the one's complement for register A's contents in register A.
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CMCK (Clock select: ceraMic oscillation ClocK)
Instruction code D9 1 0 1 0 0 1 1 0 1 D0 0
2
2
9
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
Ceramic oscillation circuit selected
Grouping: Other operation Description: Selects the ceramic oscillation circuit and stops the on-chip oscillator.
CRCK (Clock select: Rc oscillation ClocK)
Instruction code D9 1 0 1 0 0 1 1 0 1 D0 1
2
2
9
B
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
RC oscillation circuit selected
Grouping: Other operation Description: Selects the RC oscillation circuit and stops the on-chip oscillator.
DEY (DEcrement register Y)
Instruction code D9 0 0 0 0 0 1 0 1 1 D0 1
2
0
1
7
Number of words
16
Number of cycles 1
Flag CY -
Skip condition (Y) = 15
1
Operation:
(Y) (Y) - 1
Grouping: RAM addresses Description: Subtracts 1 from the contents of register Y. As a result of subtraction, when the contents of register Y is 15, the next instruction is skipped. When the contents of register Y is not 15, the next instruction is executed.
DI (Disable Interrupt)
Instruction code D9 0 0 0 0 0 0 0 1 0 D0 0
2
0
0
4
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(INTE) 0
Grouping: Interrupt control operation Description: Clears (0) to interrupt enable flag INTE, and disables the interrupt. Note: Interrupt is disabled by executing the DI instruction after executing 1 machine cycle.
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DWDT (Disable WatchDog Timer)
Instruction code D9 1 0 1 0 0 1 1 1 0 D0 0
2
2
9
C
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
Stop of watchdog timer function enabled
Grouping: Other operation Description: Stops the watchdog timer function by the WRST instruction after executing the DWDT instruction.
EI (Enable Interrupt)
Instruction code D9 0 0 0 0 0 0 0 1 0 D0 1
2
0
0
5
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(INTE) 1
Grouping: Interrupt control operation Description: Sets (1) to interrupt enable flag INTE, and enables the interrupt. Note: Interrupt is enabled by executing the EI instruction after executing 1 machine cycle.
EPOF (Enable POF instruction)
Instruction code D9 0 0 0 1 0 1 1 0 1 D0 1
2
0
5
B
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
POF instruction, POF2 instruction valid
Grouping: Other operation Description: Makes the immediate after POF or POF2 instruction valid by executing the EPOF instruction.
IAP0 (Input Accumulator from port P0)
Instruction code D9 1 0 0 1 1 0 0 0 0 D0 0
2
2
6
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (P0)
Grouping: Input/Output operation Description: Transfers the input of port P0 to register A.
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IAP1 (Input Accumulator from port P1)
Instruction code D9 1 0 0 1 1 0 0 0 0 D0 1
2
2
6
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (P1)
Grouping: Input/Output operation Description: Transfers the input of port P1 to register A.
IAP2 (Input Accumulator from port P2)
Instruction code D9 1 0 0 1 1 0 0 0 1 D0 0
2
2
6
2
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (P2)
Grouping: Input/Output operation Description: Transfers the input of port P2 to register A.
IAP3 (Input Accumulator from port P3)
Instruction code D9 1 0 0 1 1 0 0 0 1 D0 1
2
2
6
3
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (P3)
Grouping: Input/Output operation Description: Transfers the input of port P3 to register A.
INY (INcrement register Y)
Instruction code D9 0 0 0 0 0 1 0 0 1 D0 1
2
0
1
3
Number of words
16
Number of cycles 1
Flag CY -
Skip condition (Y) = 0
1
Operation:
(Y) (Y) + 1
Grouping: RAM addresses Description: Adds 1 to the contents of register Y. As a result of addition, when the contents of register Y is 0, the next instruction is skipped. When the contents of register Y is not 0, the next instruction is executed.
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LA n (Load n in Accumulator)
Instruction code D9 0 0 0 1 1 1 n n n D0 n
2
0
7
n
Number of words
16
Number of cycles 1
Flag CY -
Skip condition Continuous description
1
Operation:
(A) n n = 0 to 15
Grouping: Arithmetic operation Description: Loads the value n in the immediate field to register A. When the LA instructions are continuously coded and executed, only the first LA instruction is executed and other LA instructions coded continuously are skipped.
LXY x, y (Load register X and Y with x and y)
Instruction code D9 1 1 D0 x3 x2 x1 x0 y3 y2 y1 y0
2
3
x
y
Number of words
16
Number of cycles 1
Flag CY -
Skip condition Continuous description
1
Operation:
(X) x x = 0 to 15 (Y) y y = 0 to 15
Grouping: RAM addresses Description: Loads the value x in the immediate field to register X, and the value y in the immediate field to register Y. When the LXY instructions are continuously coded and executed, only the first LXY instruction is executed and other LXY instructions coded continuously are skipped.
LZ z (Load register Z with z)
Instruction code D9 0 0 0 1 0 0 1 0 D0 z1 z0
2
0
4
8 +z 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(Z) z z = 0 to 3
Grouping: RAM addresses Description: Loads the value z in the immediate field to register Z.
NOP (No OPeration)
Instruction code D9 0 0 0 0 0 0 0 0 0 D0 0
2
0
0
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(PC) (PC) + 1
Grouping: Other operation Description: No operation; Adds 1 to program counter value, and others remain unchanged.
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OP0A (Output port P0 from Accumulator)
Instruction code D9 1 0 0 0 1 0 0 0 0 D0 0
2
2
2
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(P0) (A)
Grouping: Input/Output operation Description: Outputs the contents of register A to port P0.
OP1A (Output port P1 from Accumulator)
Instruction code D9 1 0 0 0 1 0 0 0 0 D0 1
2
2
2
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(P1) (A)
Grouping: Input/Output operation Description: Outputs the contents of register A to port P1.
OR (logical OR between accumulator and memory)
Instruction code D9 0 0 0 0 0 1 1 0 0 D0 1
2
0
1
9 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(A) (A) OR (M(DP))
Grouping: Arithmetic operation Description: Takes the OR operation between the contents of register A and the contents of M(DP), and stores the result in register A.
POF (Power OFf1)
Instruction code D9 0 0 0 0 0 0 0 0 1 D0 0
2
0
0
2
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
Transition to clock operating mode
Grouping: Other operation Description: Puts the system in clock operating state by executing the POF instruction after executing the EPOF instruction. Note: If the EPOF instruction is not executed before executing this instruction, this instruction is equivalent to the NOP instruction.
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POF2 (Power OFf2)
Instruction code D9 0 0 0 0 0 0 1 0 0 D0 0
2
0
0
8
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
Transition to RAM back-up mode
Grouping: Other operation Description: Puts the system in RAM back-up state by executing the POF2 instruction after executing the EPOF instruction. Note: If the EPOF instruction is not executed before executing this instruction, this instruction is equivalent to the NOP instruction.
RAR (Rotate Accumulator Right)
Instruction code D9 0 0 0 0 0 1 1 1 0 D0 1
2
0
1
D
Number of words
16
Number of cycles 1
Flag CY 0/1
Skip condition -
1
Operation:
CY A3A2A1A0
Grouping: Arithmetic operation Description: Rotates 1 bit of the contents of register A including the contents of carry flag CY to the right.
RB j (Reset Bit)
Instruction code D9 0 0 0 1 0 0 1 1 j D0 j
2
0
4
C +j 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(Mj(DP)) 0 j = 0 to 3
Grouping: Bit operation Description: Clears (0) the contents of bit j (bit specified by the value j in the immediate field) of M(DP).
RBK (Reset Bank flag)
Instruction code D9 0 0 0 1 0 0 0 0 0 D0 0
2
0
4
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
When TABP p instruction is executed, P6 0
Grouping: Other operation Description: Sets referring data area to pages 0 to 63 when the TABP p instruction is executed. Note: This instruction cannot be used in M34554M8.
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RC (Reset Carry flag)
Instruction code D9 0 0 0 0 0 0 0 1 1 D0 0
2
0
0
6
Number of words
16
Number of cycles 1
Flag CY 0
Skip condition -
1
Operation:
(CY) 0
Grouping: Arithmetic operation Description: Clears (0) to carry flag CY.
RCP (Reset Port C)
Instruction code D9 1 0 1 0 0 0 1 1 0 D0 0
2
2
8
C
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(C) 0
Grouping: Input/Output operation Description: Clears (0) to port C.
RD (Reset port D specified by register Y)
Instruction code D9 0 0 0 0 0 1 0 1 0 D0 0
2
0
1
4 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(D(Y)) 0 However, (Y) = 0 to 9
Grouping: Input/Output operation Description: Clears (0) to a bit of port D specified by register Y.
RT (ReTurn from subroutine)
Instruction code D9 0 0 0 1 0 0 0 1 0 D0 0
2
0
4
4
Number of words
16
Number of cycles 2
Flag CY -
Skip condition -
1
Operation:
(PC) (SK(SP)) (SP) (SP) - 1
Grouping: Return operation Description: Returns from subroutine to the routine called the subroutine.
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RTI (ReTurn from Interrupt)
Instruction code D9 0 0 0 1 0 0 0 1 1 D0 0
2
0
4
6
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(PC) (SK(SP)) (SP) (SP) - 1
Grouping: Return operation Description: Returns from interrupt service routine to main routine. Returns each value of data pointer (X, Y, Z), carry flag, skip status, NOP mode status by the continuous description of the LA/LXY instruction, register A and register B to the states just before interrupt.
RTS (ReTurn from subroutine and Skip)
Instruction code D9 0 0 0 1 0 0 0 1 0 D0 1
2
0
4
5
Number of words
16
Number of cycles 2
Flag CY -
Skip condition Skip at uncondition
1
Operation:
(PC) (SK(SP)) (SP) (SP) - 1
Grouping: Return operation Description: Returns from subroutine to the routine called the subroutine, and skips the next instruction at uncondition.
SB j (Set Bit)
Instruction code D9 0 0 0 1 0 1 1 1 j D0 j
2
0
5
C +j 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(Mj(DP)) 1 j = 0 to 3
Grouping: Bit operation Description: Sets (1) the contents of bit j (bit specified by the value j in the immediate field) of M(DP).
SBK (Set Bank flag)
Instruction code D9 0 0 0 1 0 0 0 0 0 D0 1
2
0
4
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
When TABP p instruction is executed, P6 1
Grouping: Other operation Description: Sets referring data area to pages 64 to 127 when the TABP p instruction is executed. Note: This instruction cannot be used in M34554M8. In M34554MC, referring data area is pages 64 to 95.
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SC (Set Carry flag)
Instruction code D9 0 0 0 0 0 0 0 1 1 D0 1
2
0
0
7
Number of words
16
Number of cycles 1
Flag CY 1
Skip condition -
1
Operation:
(CY) 1
Grouping: Arithmetic operation Description: Sets (1) to carry flag CY.
SCP (Set Port C)
Instruction code D9 1 0 1 0 0 0 1 1 0 D0 1
2
2
8
D
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(C) 1
Grouping: Input/Output operation Description: Sets (1) to port C.
SD (Set port D specified by register Y)
Instruction code D9 0 0 0 0 0 1 0 1 0 D0 1
2
0
1
5
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(D(Y)) 1 (Y) = 0 to 9
Grouping: Input/Output operation Description: Sets (1) to a bit of port D specified by register Y.
SEA n (Skip Equal, Accumulator with immediate data n)
Instruction code D9 0 0 Operation: 0 0 0 0 0 1 1 1 0 1 0 n 1 n 0 n D0 1 n
2
0 0
2 7
5
Number of words
16
Number of cycles 2
Flag CY -
Skip condition (A) = n
2
2
(A) = n ? n = 0 to 15
n 16 Grouping: Comparison operation Description: Skips the next instruction when the contents of register A is equal to the value n in the immediate field. Executes the next instruction when the contents of register A is not equal to the value n in the immediate field.
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SEAM (Skip Equal, Accumulator with Memory)
Instruction code D9 0 0 0 0 1 0 0 1 1 D0 0
2
0
2
6
Number of words
16
Number of cycles 1
Flag CY -
Skip condition (A) = (M(DP))
1
Operation:
(A) = (M(DP)) ?
Grouping: Comparison operation Description: Skips the next instruction when the contents of register A is equal to the contents of M(DP). Executes the next instruction when the contents of register A is not equal to the contents of M(DP).
SNZ0 (Skip if Non Zero condition of external 0 interrupt request flag)
Instruction code D9 0 0 0 0 1 1 1 0 0 D0 0
2
0
3
8
Number of words
16
Number of cycles 1
Flag CY -
Skip condition V10 = 0: (EXF0) = 1
1
Operation:
V10 = 0: (EXF0) = 1 ? After skipping, (EXF0) 0 V10 = 1: SNZ0 = NOP (V10 : bit 0 of the interrupt control register V1)
Grouping: Interrupt operation Description: When V10 = 0 : Skips the next instruction when external 0 interrupt request flag EXF0 is "1." After skipping, clears (0) to the EXF0 flag. When the EXF0 flag is "0," executes the next instruction. When V10 = 1 : This instruction is equivalent to the NOP instruction.
SNZ1 (Skip if Non Zero condition of external 1 interrupt request flag)
Instruction code D9 0 0 0 0 1 1 1 0 0 D0 1
2
0
3
9
Number of words
16
Number of cycles 1
Flag CY -
Skip condition V11 = 0: (EXF1) = 1
1
Operation:
V11 = 0: (EXF1) = 1 ? After skipping, (EXF1) 0 V11 = 1: SNZ1 = NOP (V11 : bit 1 of the interrupt control register V1)
Grouping: Interrupt operation Description: When V11 = 0 : Skips the next instruction when external 1 interrupt request flag EXF1 is "1." After skipping, clears (0) to the EXF1 flag. When the EXF1 flag is "0," executes the next instruction. When V11 = 1 : This instruction is equivalent to the NOP instruction.
SNZI0 (Skip if Non Zero condition of external 0 Interrupt input pin)
Instruction code D9 0 0 0 0 1 1 1 0 1 D0 0
2
0
3
A 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition I12 = 0 : (INT0) = "L" I12 = 1 : (INT0) = "H"
Operation:
I12 = 0 : (INT0) = "L" ? I12 = 1 : (INT0) = "H" ? (I12 : bit 2 of the interrupt control register I1)
Grouping: Interrupt operation Description: When I12 = 0 : Skips the next instruction when the level of INT0 pin is "L." Executes the next instruction when the level of INT0 pin is "H." When I12 = 1 : Skips the next instruction when the level of INT0 pin is "H." Executes the next instruction when the level of INT0 pin is "L."
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SNZI1 (Skip if Non Zero condition of external 1 Interrupt input pin)
Instruction code D9 0 0 0 0 1 1 1 0 1 D0 12 0 3 B 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition I22 = 0 : (INT1) = "L" I22 = 1 : (INT1) = "H"
Operation:
I22 = 0 : (INT1) = "L" ? I22 = 1 : (INT1) = "H" ? (I22 : bit 2 of the interrupt control register I2)
Grouping: Interrupt operation Description: When I22 = 0 : Skips the next instruction when the level of INT1 pin is "L." Executes the next instruction when the level of INT1 pin is "H." When I22 = 1 : Skips the next instruction when the level of INT1 pin is "H." Executes the next instruction when the level of INT1 pin is "L." Number of words
16
SNZP (Skip if Non Zero condition of Power down flag)
Instruction code D9 0 0 0 0 0 0 0 0 1 D0 1
2
0
0
3
Number of cycles 1
Flag CY -
Skip condition (P) = 1
1
Operation:
(P) = 1 ?
Grouping: Other operation Description: Skips the next instruction when the P flag is "1". After skipping, the P flag remains unchanged. Executes the next instruction when the P flag is "0."
SNZT1 (Skip if Non Zero condition of Timer 1 interrupt request flag)
Instruction code D9 1 0 1 0 0 0 0 0 0 D0 0
2
2
8
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition V12 = 0: (T1F) = 1
1
Operation:
V12 = 0: (T1F) = 1 ? After skipping, (T1F) 0 V12 = 1: SNZT1 = NOP (V12 = bit 2 of interrupt control register V1)
Grouping: Timer operation Description: When V12 = 0 : Skips the next instruction when timer 1 interrupt request flag T1F is "1." After skipping, clears (0) to the T1F flag. When the T1F flag is "0," executes the next instruction. When V12 = 1 : This instruction is equivalent to the NOP instruction.
SNZT2 (Skip if Non Zero condition of Timer 2 interrupt request flag)
Instruction code D9 1 0 1 0 0 0 0 0 0 D0 1
2
2
8
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition V13 = 0: (T2F) = 1
1
Operation:
V13 = 0: (T2F) = 1 ? After skipping, (T2F) 0 V13 = 1: SNZT2 = NOP (V13 = bit 3 of interrupt control register V1)
Grouping: Timer operation Description: When V13 = 0 : Skips the next instruction when timer 2 interrupt request flag T2F is "1." After skipping, clears (0) to the T2F flag. When the T2F flag is "0," executes the next instruction. When V13 = 1 : This instruction is equivalent to the NOP instruction.
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SNZT3 (Skip if Non Zero condition of Timer 3 interrupt request flag)
Instruction code D9 1 0 1 0 0 0 0 0 1 D0 0
2
2
8
2
Number of words
16
Number of cycles 1
Flag CY -
Skip condition V20 = 0: (T3F) = 1
1
Operation:
V20 = 0: (T3F) = 1 ? After skipping, (T3F) 0 V20 = 1: SNZT3 = NOP (V20 = bit 0 of interrupt control register V2)
Grouping: Timer operation Description: When V20 = 0 : Skips the next instruction when timer 3 interrupt request flag T3F is "1." After skipping, clears (0) to the T3F flag. When the T3F flag is "0," executes the next instruction. When V20 = 1 : This instruction is equivalent to the NOP instruction.
SNZT4 (Skip if Non Zero condition of Timer 4 inerrupt request flag)
Instruction code D9 1 0 1 0 0 0 0 0 1 D0 1
2
2
8
3
Number of words
16
Number of cycles 1
Flag CY -
Skip condition V23 = 0: (T4F) = 1
1
Operation:
V23 = 0: (T4F) = 1 ? After skipping, (T4F) 0 V23 = 1: SNZT4 = NOP (V23 = bit 3 of interrupt control register V2)
Grouping: Timer operation Description: When V23 = 0 : Skips the next instruction when timer 4 interrupt request flag T4F is "1." After skipping, clears (0) to the T4F flag. When the T4F flag is "0," executes the next instruction. When V23 = 1 : This instruction is equivalent to the NOP instruction.
SNZT5 (Skip if Non Zero condition of Timer 5 inerrupt request flag)
Instruction code D9 1 0 1 0 0 0 0 1 0 D0 0
2
2
8
4
Number of words
16
Number of cycles 1
Flag CY -
Skip condition V21 = 0: (T5F) = 1
1
Operation:
V21 = 0: (T5F) = 1 ? After skipping, (T5F) 0 V21 = 1: SNZT5 = NOP (V21 = bit 1 of interrupt control register V2)
Grouping: Timer operation Description: When V21 = 0 : Skips the next instruction when timer 5 interrupt request flag T5F is "1." After skipping, clears (0) to the T5F flag. When the T5F flag is "0," executes the next instruction. When V21 = 1 : This instruction is equivalent to the NOP instruction.
SVDE (Set Voltage Detector Enable flag)
Instruction code D9 1 0 1 0 0 1 0 0 1 D0 1
2
2
9
3
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
At power down mode, voltage drop detection circuit valid
Grouping: Other operation Description: Validates the voltage drop detection circuit at power down (clock operating mode and RAM back-up mode) when VDCE pin is "H".
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SZB j (Skip if Zero, Bit)
Instruction code D9 0 0 0 0 1 0 0 0 j D0 j
2
0
2
j
Number of words
16
Number of cycles 1
Flag CY -
Skip condition (Mj(DP)) = 0 j = 0 to 3
1
Operation:
(Mj(DP)) = 0 ? j = 0 to 3
Grouping: Bit operation Description: Skips the next instruction when the contents of bit j (bit specified by the value j in the immediate field) of M(DP) is "0." Executes the next instruction when the contents of bit j of M(DP) is "1."
SZC (Skip if Zero, Carry flag)
Instruction code D9 0 0 0 0 1 0 1 1 1 D0 1
2
0
2
F
Number of words
16
Number of cycles 1
Flag CY -
Skip condition (CY) = 0
1
Operation:
(CY) = 0 ?
Grouping: Arithmetic operation Description: Skips the next instruction when the contents of carry flag CY is "0." After skipping, the CY flag remains unchanged. Executes the next instruction when the contents of the CY flag is "1."
SZD (Skip if Zero, port D specified by register Y)
Instruction code D9 0 0 Operation: 0 0 0 0 0 0 1 1 0 0 0 1 1 0 0 1 D0 0
2
0 0
2 2
4
Number of words
16
Number of cycles 2
Flag CY -
Skip condition (D(Y)) = 0
(Y) = 0 to 7
2
12
B 16
(D(Y)) = 0 ? (Y) = 0 to 7
Grouping: Input/Output operation Description: Skips the next instruction when a bit of port D specified by register Y is "0." Executes the next instruction when the bit is "1."
T1AB (Transfer data to timer 1 and register R1 from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 0 0 0 D0 0
2
2
3
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(T17-T14) (B) (R17-R14) (B) (T13-T10) (A) (R13-R10) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits of timer 1 and timer 1 reload register R1. Transfers the contents of register A to the low-order 4 bits of timer 1 and timer 1 reload register R1.
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T2AB (Transfer data to timer 2 and register R2 from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 0 0 0 D0 1
2
2
3
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(T27-T24) (B) (R27-R24) (B) (T23-T20) (A) (R23-R20) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits of timer 2 and timer 2 reload register R2. Transfers the contents of register A to the low-order 4 bits of timer 2 and timer 2 reload register R2.
T3AB (Transfer data to timer 3 and register R3 from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 0 0 1 D0 02 2 3 2 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(T37-T34) (B) (R37-R34) (B) (T33-T30) (A) (R33-R30) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits of timer 3 and timer 3 reload register R3. Transfers the contents of register A to the low-order 4 bits of timer 3 and timer 3 reload register R3.
T4AB (Transfer data to timer 4 and register R4L from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 0 0 1 D0 12 2 3 3 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(T47-T44) (B) (R4L7-R4L4) (B) (T43-T40) (A) (R4L3-R4L0) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits of timer 4 and timer 4 reload register R4L. Transfers the contents of register A to the low-order 4 bits of timer 4 and timer 4 reload register R4L.
T4HAB (Transfer data to register R4H from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 0 1 1 D0 1
2
2
3
7 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(R4H7-R4H4) (B) (R4H3-R4H0) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits of timer 4 and timer 4 reload register R4H. Transfers the contents of register A to the low-order 4 bits of timer 4 and timer 4 reload register R4H.
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T4R4L (Transfer data to timer 4 from register R4L)
Instruction code D9 1 0 1 0 0 1 0 1 1 D0 1
2
2
9
7 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(T47-T44) (R4L7-R4L4) (T43-T40) (R4L3-R4L0)
Grouping: Timer operation Description: Transfers the contents of reload register R4L to timer 4.
TAB (Transfer data to Accumulator from register B)
Instruction code D9 0 0 0 0 0 1 1 1 1 D0 0
2
0
1
E
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (B)
Grouping: Register to register transfer Description: Transfers the contents of register B to register A.
TAB1 (Transfer data to Accumulator and register B from timer 1)
Instruction code D9 1 0 0 1 1 1 0 0 0 D0 0
2
2
7
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(B) (T17-T14) (A) (T13-T10)
Grouping: Timer operation Description: Transfers the high-order 4 bits (T17-T14) of timer 1 to register B. Transfers the low-order 4 bits (T13-T10) of timer 1 to register A.
TAB2 (Transfer data to Accumulator and register B from timer 2)
Instruction code D9 1 0 0 1 1 1 0 0 0 D0 1
2
2
7
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(B) (T27-T24) (A) (T23-T20)
Grouping: Timer operation Description: Transfers the high-order 4 bits (T27-T24) of timer 2 to register B. Transfers the low-order 4 bits (T23-T20) of timer 2 to register A.
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TAB3 (Transfer data to Accumulator and register B from timer 3)
Instruction code D9 1 0 0 1 1 1 0 0 1 D0 0
2
2
7
2
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(B) (T37-T34) (A) (T33-T30)
Grouping: Timer operation Description: Transfers the high-order 4 bits (T37-T34) of timer 3 to register B. Transfers the low-order 4 bits (T33-T30) of timer 3 to register A.
TAB4 (Transfer data to Accumulator and register B from timer 4)
Instruction code D9 1 0 0 1 1 1 0 0 1 D0 1
2
2
7
3
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(B) (T47-T44) (A) (T43-T40)
Grouping: Timer operation Description: Transfers the high-order 4 bits (T47-T44) of timer 4 to register B. Transfers the low-order 4 bits (T43-T40) of timer 4 to register A.
TABE (Transfer data to Accumulator and register B from register E)
Instruction code D9 0 0 0 0 1 0 1 0 1 D0 0
2
0
2
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(B) (E7-E4) (A) (E3-E0)
Grouping: Register to register transfer Description: Transfers the high-order 4 bits (E7-E4) of register E to register B, and low-order 4 bits of register E to register A.
TABP p (Transfer data to Accumulator and register B from Program memory in page p)
Instruction code D9 0 0 1 0 D0 p5 p4 p3 p2 p1 p0
2
0
8 +p
p
Number of words
16
Number of cycles 3
Flag CY -
Skip condition -
1
Operation:
(SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (PCL) (DR2-DR0, A3-A0) (B) (ROM(PC))7-4 (A) (ROM(PC))3-0 (PC) (SK(SP)) (SP) (SP) - 1
Grouping: Arithmetic operation Description: Transfers bits 7 to 4 to register B and bits 3 to 0 to register A. These bits 7 to 0 are the ROM pattern in address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers A and D in page p. The pages which can be referred as follows; after the SBK instruction: 64 to 127 after the RBK instruction: 0 to 63 after system is released from reset or returned from power down: 0 to 63. Note: p is 0 to 63 for M34554M8, and p is 0 to 95 for M34554MC, and p is 0 to 127 for M34554ED. When this instruction is executed, be careful not to over the stack because 1 stage of stack register is used.
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TABPS (Transfer data to Accumulator and register B from PreScaler)
Instruction code D9 1 0 0 1 1 1 0 1 0 D0 1
2
2
7
5
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(B) (TPS7-TPS4) (A) (TPS3-TPS0)
Grouping: Timer operation Description: Transfers the high-order 4 bits (TPS7- TPS4) of prescaler to register B, and transfers the low-order 4 bits (TPS3-TPS0) of prescaler to register A.
TAD (Transfer data to Accumulator from register D)
Instruction code D9 0 0 0 1 0 1 0 0 0 D0 1
2
0
5
1
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A2-A0) (DR2-DR0) (A3) 0
Grouping: Register to register transfer Description: Transfers the contents of register D to the low-order 3 bits (A2-A0) of register A. Note: When this instruction is executed, "0" is stored to the bit 3 (A3) of register A.
TAI1 (Transfer data to Accumulator from register I1)
Instruction code D9 1 0 0 1 0 1 0 0 1 D0 1
2
2
5
3
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (I1)
Grouping: Interrupt operation Description: Transfers the contents of interrupt control register I1 to register A.
TAI2 (Transfer data to Accumulator from register I2)
Instruction code D9 1 0 0 1 0 1 0 1 0 D0 0
2
2
5
4
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (I2)
Grouping: Interrupt operation Description: Transfers the contents of interrupt control register I2 to register A.
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TAK0 (Transfer data to Accumulator from register K0)
Instruction code D9 1 0 0 1 0 1 0 1 1 D0 0
2
2
5
6
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (K0)
Grouping: Input/Output operation Description: Transfers the contents of key-on wakeup control register K0 to register A.
TAK1 (Transfer data to Accumulator from register K1)
Instruction code D9 1 0 0 1 0 1 1 0 0 D0 1
2
2
5
9
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (K1)
Grouping: Input/Output operation Description: Transfers the contents of key-on wakeup control register K1 to register A.
TAK2 (Transfer data to Accumulator from register K2)
Instruction code D9 1 0 0 1 0 1 1 0 1 D0 0
2
2
5
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (K2)
Grouping: Input/Output operation Description: Transfers the contents of key-on wakeup control register K2 to register A.
TAL1 (Transfer data to Accumulator from register L1)
Instruction code D9 1 0 0 1 0 0 1 0 1 D0 0
2
2
4
A 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(A) (L1)
Grouping: LCD control operation Description: Transfers the LCD control register L1 to register A.
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TAM j (Transfer data to Accumulator from Memory)
Instruction code D9 1 0 1 1 0 0 j j j D0 j
2
2
C
j
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15
Grouping: RAM to register transfer Description: After transferring the contents of M(DP) to register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X.
TAMR (Transfer data to Accumulator from register MR)
Instruction code D9 1 0 0 1 0 1 0 0 1 D0 0
2
2
5
2
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (MR)
Grouping: Clock operation Description: Transfers the contents of clock control register MR to register A.
TAPU0 (Transfer data to Accumulator from register PU0)
Instruction code D9 1 0 0 1 0 1 0 1 1 D0 1
2
2
5
7
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (PU0)
Grouping: Input/Output operation Description: Transfers the contents of pull-up control register PU0 to register A.
TAPU1 (Transfer data to Accumulator from register PU1)
Instruction code D9 1 0 0 1 0 1 1 1 1 D0 0
2
2
5
E 16
Number of words 1
Number of cycles 1
Flag CY -
Skip condition -
Operation:
(A) (PU1)
Grouping: Input/Output operation Description: Transfers the contents of pull-up control register PU1 to register A.
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TASP (Transfer data to Accumulator from Stack Pointer)
Instruction code D9 0 0 0 1 0 1 0 0 0 D0 0
2
0
5
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A2-A0) (SP2-SP0) (A3) 0
Grouping: Register to register transfer Description: Transfers the contents of stack pointer (SP) to the low-order 3 bits (A2-A0) of register A. Note: After this instruction is executed, "0" is stored to the bit 3 (A3) of register A.
TAV1 (Transfer data to Accumulator from register V1)
Instruction code D9 0 0 0 1 0 1 0 1 0 D0 0
2
0
5
4
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (V1)
Grouping: Interrupt operation Description: Transfers the contents of interrupt control register V1 to register A.
TAV2 (Transfer data to Accumulator from register V2)
Instruction code D9 0 0 0 1 0 1 0 1 0 D0 1
2
0
5
5
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (V2)
Grouping: Interrupt operation Description: Transfers the contents of interrupt control register V2 to register A.
TAW1 (Transfer data to Accumulator from register W1)
Instruction code D9 1 0 0 1 0 0 1 0 1 D0 1
2
2
4
B
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (W1)
Grouping: Timer operation Description: Transfers the contents of timer control register W1 to register A.
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TAW2 (Transfer data to Accumulator from register W2)
Instruction code D9 1 0 0 1 0 0 1 1 0 D0 0
2
2
4
C
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (W2)
Grouping: Timer operation Description: Transfers the contents of timer control register W2 to register A.
TAW3 (Transfer data to Accumulator from register W3)
Instruction code D9 1 0 0 1 0 0 1 1 0 D0 1
2
2
4
D
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (W3)
Grouping: Timer operation Description: Transfers the contents of timer control register W3 to register A.
TAW4 (Transfer data to Accumulator from register W4)
Instruction code D9 1 0 0 1 0 0 1 1 1 D0 0
2
2
4
E
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (W4)
Grouping: Timer operation Description: Transfers the contents of timer control register W4 to register A.
TAW5 (Transfer data to Accumulator from register W5)
Instruction code D9 1 0 0 1 0 0 1 1 1 D0 1
2
2
4
F
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (W5)
Grouping: Timer operation Description: Transfers the contents of timer control register W5 to register A.
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TAW6 (Transfer data to Accumulator from register W6)
Instruction code D9 1 0 0 1 0 1 0 0 0 D0 0
2
2
5
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (W6)
Grouping: Timer operation Description: Transfers the contents of timer control register W6 to register A.
TAX (Transfer data to Accumulator from register X)
Instruction code D9 0 0 0 1 0 1 0 0 1 D0 0
2
0
5
2
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (X)
Grouping: Register to register transfer Description: Transfers the contents of register X to register A.
TAY (Transfer data to Accumulator from register Y)
Instruction code D9 0 0 0 0 0 1 1 1 1 D0 1
2
0
1
F
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (Y)
Grouping: Register to register transfer Description: Transfers the contents of register Y to register A.
TAZ (Transfer data to Accumulator from register Z)
Instruction code D9 0 0 0 1 0 1 0 0 1 D0 12 0 5 3 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(A1, A0) (Z1, Z0) (A3, A2) 0
Grouping: Register to register transfer Description: Transfers the contents of register Z to the low-order 2 bits (A1, A0) of register A. Note: After this instruction is executed, "0" is stored to the high-order 2 bits (A3, A2) of register A.
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TBA (Transfer data to register B from Accumulator)
Instruction code D9 0 0 0 0 0 0 1 1 1 D0 0
2
0
0
E
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(B) (A)
Grouping: Register to register transfer Description: Transfers the contents of register A to register B.
TDA (Transfer data to register D from Accumulator)
Instruction code D9 0 0 0 0 1 0 1 0 0 D0 1
2
0
2
9
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(DR2-DR0) (A2-A0)
Grouping: Register to register transfer Description: Transfers the contents of the low-order 3 bits (A2-A0) of register A to register D.
TEAB (Transfer data to register E from Accumulator and register B)
Instruction code D9 0 0 0 0 0 1 1 0 1 D0 0
2
0
1
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(E7-E4) (B) (E3-E0) (A)
Grouping: Register to register transfer Description: Transfers the contents of register B to the high-order 4 bits (E7-E4) of register E, and the contents of register A to the low-order 4 bits (E3-E0) of register E.
TFR0A (Transfer data to register FR0 from Accumulator)
Instruction code D9 1 0 0 0 1 0 1 0 0 D0 02 2 2 8 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(FR0) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to the port output structure control register FR0.
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TFR1A (Transfer data to register FR1 from Accumulator)
Instruction code D9 1 0 0 0 1 0 1 0 0 D0 1
2
2
2
9
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(FR1) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to the port output structure control register FR1.
TFR2A (Transfer data to register FR2 from Accumulator)
Instruction code D9 1 0 0 0 1 0 1 0 1 D0 0
2
2
2
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(FR2) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to the port output structure control register FR2.
TI1A (Transfer data to register I1 from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 1 1 D0 1
2
2
1
7
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(I1) (A)
Grouping: Interrupt operation Description: Transfers the contents of register A to interrupt control register I1.
TI2A (Transfer data to register I2 from Accumulator)
Instruction code D9 1 0 0 0 0 1 1 0 0 D0 0
2
2
1
8
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(I2) (A)
Grouping: Interrupt operation Description: Transfers the contents of register A to interrupt control register I2.
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TK0A (Transfer data to register K0 from Accumulator)
Instruction code D9 1 0 0 0 0 1 1 0 1 D0 1
2
2
1
B
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(K0) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to keyon wakeup control register K0.
TK1A (Transfer data to register K1 from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 1 0 D0 0
2
2
1
4
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(K1) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to keyon wakeup control register K1.
TK2A (Transfer data to register K2 from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 1 0 D0 1
2
2
1
5
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(K2) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to keyon wakeup control register K2.
TL1A (Transfer data to register L1 from Accumulator)
Instruction code D9 1 0 0 0 0 0 1 0 1 D0 0
2
2
0
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(L1) (A)
Grouping: LCD operation Description: Transfers the contents of register A to LCD control register L1.
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TL2A (Transfer data to register L2 from Accumulator)
Instruction code D9 1 0 0 0 0 0 1 0 1 D0 12 2 0 B 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(L2) (A)
Grouping: LCD operation Description: Transfers the contents of register A to LCD control register L2.
TL3A (Transfer data to register L3 from Accumulator)
Instruction code D9 1 0 0 0 0 0 1 1 0 D0 0
2
2
0
C
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(L3) (A)
Grouping: LCD operation Description: Transfers the contents of register A to LCD control register L3.
TLCA (Transfer data to timer LC and register RLC from Accumulator)
Instruction code D9 1 0 0 0 0 0 1 1 0 D0 1
2
2
0
D
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(LC) (A) (RLC) (A)
Grouping: Timer operation Description: Transfers the contents of register A to timer LC and reload register RLC.
TMA j (Transfer data to Memory from Accumulator)
Instruction code D9 1 0 1 0 1 1 j j j D0 j
2
2
B
j
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(M(DP)) (A) (X) (X)EXOR(j) j = 0 to 15
Grouping: RAM to register transfer Description: After transferring the contents of register A to M(DP), an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X.
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MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TMRA (Transfer data to register MR from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 1 1 D0 0
2
2
1
6
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(MR) (A)
Grouping: Other operation Description: Transfers the contents of register A to clock control register MR.
TPAA (Transfer data to register PA from Accumulator)
Instruction code D9 1 0 1 0 1 0 1 0 1 D0 0
2
2
A
A
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(PA0) (A0)
Grouping: Timer operation Description: Transfers the contents of lowermost bit (A0) register A to timer control register PA.
TPSAB (Transfer data to Pre-Scaler from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 0 1 0 D0 1
2
2
3
5
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(RPS7-RPS4) (B) (TPS7-TPS4) (B) (RPS3-RPS0) (A) (TPS3-TPS0) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits of prescaler and prescaler reload register RPS, and transfers the contents of register A to the low-order 4 bits of prescaler and prescaler reload register RPS.
TPU0A (Transfer data to register PU0 from Accumulator)
Instruction code D9 1 0 0 0 1 0 1 1 0 D0 1
2
2
2
D
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(PU0) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to pullup control register PU0.
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MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TPU1A (Transfer data to register PU1 from Accumulator)
Instruction code D9 1 0 0 0 1 0 1 1 1 D0 0
2
2
2
E
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(PU1) (A)
Grouping: Input/Output operation Description: Transfers the contents of register A to pullup control register PU1.
TR1AB (Transfer data to register R1 from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 1 1 1 D0 1
2
2
3
F
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(R17-R14) (B) (R13-R10) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits (R17-R14) of reload register R1, and the contents of register A to the low-order 4 bits (R13-R10) of reload register R1.
TR3AB (Transfer data to register R3 from Accumulator and register B)
Instruction code D9 1 0 0 0 1 1 1 0 1 D0 1
2
2
3
B
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(R37-R34) (B) (R33-R30) (A)
Grouping: Timer operation Description: Transfers the contents of register B to the high-order 4 bits (R37-R34) of reload register R3, and the contents of register A to the low-order 4 bits (R33-R30) of reload register R3.
TV1A (Transfer data to register V1 from Accumulator)
Instruction code D9 0 0 0 0 1 1 1 1 1 D0 1
2
0
3
F
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(V1) (A)
Grouping: Interrupt operation Description: Transfers the contents of register A to interrupt control register V1.
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MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TV2A (Transfer data to register V2 from Accumulator)
Instruction code D9 0 0 0 0 1 1 1 1 1 D0 02 0 3 E 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(V2) (A)
Grouping: Interrupt operation Description: Transfers the contents of register A to interrupt control register V2.
TW1A (Transfer data to register W1 from Accumulator)
Instruction code D9 1 0 0 0 0 0 1 1 1 D0 0
2
2
0
E
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(W1) (A)
Grouping: Timer operation Description: Transfers the contents of register A to timer control register W1.
TW2A (Transfer data to register W2 from Accumulator)
Instruction code D9 1 0 0 0 0 0 1 1 1 D0 1
2
2
0
F
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(W2) (A)
Grouping: Timer operation Description: Transfers the contents of register A to timer control register W2.
TW3A (Transfer data to register W3 from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 0 0 D0 02 2 1 0 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(W3) (A)
Grouping: Timer operation Description: Transfers the contents of register A to timer control register W3.
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MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TW4A (Transfer data to register W4 from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 0 0 D0 12 2 1 1 16 Number of words 1 Number of cycles 1 Flag CY - Skip condition -
Operation:
(W4) (A)
Grouping: Timer operation Description: Transfers the contents of register A to timer control register W4.
TW5A (Transfer data to register W5 from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 0 1 D0 0
2
2
1
2
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(W5) (A)
Grouping: Timer operation Description: Transfers the contents of register A to timer control register W5.
TW6A (Transfer data to register W6 from Accumulator)
Instruction code D9 1 0 0 0 0 1 0 0 1 D0 1
2
2
1
3
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(W6) (A)
Grouping: Timer operation Description: Transfers the contents of register A to timer control register W6.
TYA (Transfer data to register Y from Accumulator)
Instruction code D9 0 0 0 0 0 0 1 1 0 D0 0
2
0
0
C
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(Y) (A)
Grouping: Register to register transfer Description: Transfers the contents of register A to register Y.
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MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
WRST (Watchdog timer ReSeT)
Instruction code D9 1 0 1 0 1 0 0 0 0 D0 0
2
2
A
0
Number of words
16
Number of cycles 1
Flag CY -
Skip condition (WDF1) = 1
1
Operation:
(WDF1) = 1 ? After skipping, (WDF1) 0
Grouping: Other operation Description: Skips the next instruction when watchdog timer flag WDF1 is "1." After skipping, clears (0) to the WDF1 flag. When the WDF1 flag is "0," executes the next instruction. Also, stops the watchdog timer function when executing the WRST instruction immediately after the DWDT instruction.
XAM j (eXchange Accumulator and Memory data)
Instruction code D9 1 0 1 1 0 1 j j j D0 j
2
2
D
j
Number of words
16
Number of cycles 1
Flag CY -
Skip condition -
1
Operation:
(A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15
Grouping: RAM to register transfer Description: After exchanging the contents of M(DP) with the contents of register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X.
XAMD j (eXchange Accumulator and Memory data and Decrement register Y and skip)
Instruction code D9 1 0 1 1 1 1 j j j D0 j
2
2
F
j
Number of words
16
Number of cycles 1
Flag CY -
Skip condition (Y) = 15
1
Operation:
(A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (Y) (Y) - 1
Grouping: RAM to register transfer Description: After exchanging the contents of M(DP) with the contents of register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X. Subtracts 1 from the contents of register Y. As a result of subtraction, when the contents of register Y is 15, the next instruction is skipped. When the contents of register Y is not 15, the next instruction is executed. D0 Number of words
16
XAMI j (eXchange Accumulator and Memory data and Increment register Y and skip)
Instruction code D9 1 0 1 1 1 0 j j j j
2
2
E
j
Number of cycles 1
Flag CY -
Skip condition (Y) = 0
1
Operation:
(A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (Y) (Y) + 1
Grouping: RAM to register transfer Description: After exchanging the contents of M(DP) with the contents of register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X. Adds 1 to the contents of register Y. As a result of addition, when the contents of register Y is 0, the next instruction is skipped. when the contents of register Y is not 0, the next instruction is executed.
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MACHINE INSTRUCTIONS (INDEX BY TYPES)
Number of words
Parameter
Number of cycles
Instruction code Mnemonic
Hexadecimal notation
Function
Type of instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 TAB TBA TAY TYA 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 1 1 0 0 0 0 1 0 1 0 1 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 1 1 0 0 0 1 0 0 0 1 1 1 0 0
01E 00E 01F 00C 01A 02A 029 051 053 052 050 3xy
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
(A) (B) (B) (A) (A) (Y) (Y) (A) (E7-E4) (B) (E3-E0) (A) (B) (E7-E4) (A) (E3-E0) (DR2-DR0) (A2-A0) (A2-A0) (DR2-DR0) (A3) 0 (A1, A0) (Z1, Z0) (A3, A2) 0 (A) (X) (A2-A0) (SP2-SP0) (A3) 0 (X) x x = 0 to 15 (Y) y y = 0 to 15 (Z) z z = 0 to 3 (Y) (Y) + 1 (Y) (Y) - 1
Register to register transfer
TEAB TABE TDA TAD TAZ TAX TASP LXY x, y
x3 x2 x1 x0 y3 y2 y1 y0
RAM addresses
LZ z INY DEY
0 0 0
0 0 0
0 0 0
1 0 0
0 0 0
0 1 1
1 0 0
0 0 1
z1 z0 1 1 1 1
048 +z 013 017
1 1 1
1 1 1
TAM j
1
0
1
1
0
0
j
j
j
j
2Cj
1
1
(A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (Y) (Y) - 1 (A) (M(DP)) (X) (X)EXOR(j) j = 0 to 15 (Y) (Y) + 1 (M(DP)) (A) (X) (X)EXOR(j) j = 0 to 15
XAM j
1
0
1
1
0
1
j
j
j
j
2Dj
1
1
RAM to register transfer
XAMD j
1
0
1
1
1
1
j
j
j
j
2Fj
1
1
XAMI j
1
0
1
1
1
0
j
j
j
j
2Ej
1
1
TMA j
1
0
1
0
1
1
j
j
j
j
2Bj
1
1
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4554 Group
Skip condition
Carry flag CY
Datailed description
- - - - - - - - - - - Continuous description - (Y) = 0 (Y) = 15
- - - - - - - - - - - -
Transfers the contents of register B to register A. Transfers the contents of register A to register B. Transfers the contents of register Y to register A. Transfers the contents of register A to register Y. Transfers the contents of register B to the high-order 4 bits (E7-E4) of register E, and the contents of register A to the low-order 4 bits (E3-E0) of register E. Transfers the high-order 4 bits (E7-E4) of register E to register B, and low-order 4 bits (E3-E0) of register E to register A. Transfers the contents of the low-order 3 bits (A2-A0) of register A to register D. Transfers the contents of register D to the low-order 3 bits (A2-A0) of register A. Transfers the contents of register Z to the low-order 2 bits (A1, A0) of register A. Transfers the contents of register X to register A. Transfers the contents of stack pointer (SP) to the low-order 3 bits (A2-A0) of register A. Loads the value x in the immediate field to register X, and the value y in the immediate field to register Y. When the LXY instructions are continuously coded and executed, only the first LXY instruction is executed and other LXY instructions coded continuously are skipped. Loads the value z in the immediate field to register Z. Adds 1 to the contents of register Y. As a result of addition, when the contents of register Y is 0, the next instruction is skipped. When the contents of register Y is not 0, the next instruction is executed. Subtracts 1 from the contents of register Y. As a result of subtraction, when the contents of register Y is 15, the next instruction is skipped. When the contents of register Y is not 15, the next instruction is executed. After transferring the contents of M(DP) to register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X. After exchanging the contents of M(DP) with the contents of register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X. After exchanging the contents of M(DP) with the contents of register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X. Subtracts 1 from the contents of register Y. As a result of subtraction, when the contents of register Y is 15, the next instruction is skipped. When the contents of register Y is not 15, the next instruction is executed. After exchanging the contents of M(DP) with the contents of register A, an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X. Adds 1 to the contents of register Y. As a result of addition, when the contents of register Y is 0, the next instruction is skipped. When the contents of register Y is not 0, the next instruction is executed. After transferring the contents of register A to M(DP), an exclusive OR operation is performed between register X and the value j in the immediate field, and stores the result in register X.
- - -
-
-
-
-
(Y) = 15
-
(Y) = 0
-
-
-
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4554 Group
MACHINE INSTRUCTIONS (INDEX BY TYPES) (continued)
Number of words
Parameter
Number of cycles
Instruction code Mnemonic
Hexadecimal notation
Function
Type of instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 LA n 0 0 0 1 1 1 n n n n
07n
1
1
(A) n n = 0 to 15 (SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (Note) (PCL) (DR2-DR0, A3-A0) (B) (ROM(PC))7-4 (A) (ROM(PC))3-0 (PC) (SK(SP)) (SP) (SP) - 1 (A) (A) + (M(DP)) (A) (A) + (M(DP)) +(CY) (CY) Carry (A) (A) + n n = 0 to 15
TABP p
0
0
1
0
p5 p4 p3 p2 p1 p0
08p +p
1
3
AM
0 0 0
0 0 0
0 0 0
0 0 1
0 0 1
0 0 0
1 1 n
0 0 n
1 1 n
0 1 n
00A 00B 06n
1 1 1
1 1 1
Arithmetic operation
AMC An
AND OR SC RC SZC CMA RAR SB j
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1 1 0
0 0 0 0 1 0 0 0 0 1
1 1 0 0 0 1 1 1 0 0
1 1 0 0 1 1 1 1 1 0
0 0 1 1 1 1 1 1 1 0
0 0 1 1 1 0 0 j j j
0 1 1 0 1 0 1 j j j
018 019 007 006 02F 01C 01D 05C +j 04C +j 02j
1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1
(A) (A) AND (M(DP)) (A) (A) OR (M(DP)) (CY) 1 (CY) 0 (CY) = 0 ? (A) (A) CY A3A2A1A0 (Mj(DP)) 1 j = 0 to 3 (Mj(DP)) 0 j = 0 to 3 (Mj(DP)) = 0 ? j = 0 to 3 (A) = (M(DP)) ?
Bit operation
RB j SZB j
SEAM
0
0
0
0
1
0
0
1
1
0
026
1
1
Comparison operation
SEA n
0 0
0 0
0 0
0 1
1 1
0 1
0 n
1 n
0 n
1 n
025 07n
2
2
(A) = n ? n = 0 to 15
Note: p is 0 to 63 for M34554M8, p is 0 to 95 for M34554MC and p is 0 to 127 for M34554ED.
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4554 Group
Skip condition
Carry flag CY
Datailed description
Continuous description -
-
Loads the value n in the immediate field to register A. When the LA instructions are continuously coded and executed, only the first LA instruction is executed and other LA instructions coded continuously are skipped. Transfers bits 7 to 4 to register B and bits 3 to 0 to register A. These bits 7 to 0 are the ROM pattern in address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers A and D in page p. When this instruction is executed, be careful not to over the stack because 1 stage of stack register is used. The pages which can be referred as follows; after the SBK instruction: 64 to 127 after the RBK instruction: 0 to 63 after system is released from reset or returned from power down: 0 to 63. Adds the contents of M(DP) to register A. Stores the result in register A. The contents of carry flag CY remains unchanged.
-
- - Overflow = 0
-
0/1 Adds the contents of M(DP) and carry flag CY to register A. Stores the result in register A and carry flag CY. - Adds the value n in the immediate field to register A, and stores a result in register A. The contents of carry flag CY remains unchanged. Skips the next instruction when there is no overflow as the result of operation. Executes the next instruction when there is overflow as the result of operation. Takes the AND operation between the contents of register A and the contents of M(DP), and stores the result in register A. Takes the OR operation between the contents of register A and the contents of M(DP), and stores the result in register A. Sets (1) to carry flag CY. Clears (0) to carry flag CY. Skips the next instruction when the contents of carry flag CY is "0." Stores the one's complement for register A's contents in register A.
- - - - (CY) = 0 - - - - (Mj(DP)) = 0 j = 0 to 3 (A) = (M(DP))
- - 1 0 - -
0/1 Rotates 1 bit of the contents of register A including the contents of carry flag CY to the right. - - - Sets (1) the contents of bit j (bit specified by the value j in the immediate field) of M(DP). Clears (0) the contents of bit j (bit specified by the value j in the immediate field) of M(DP). Skips the next instruction when the contents of bit j (bit specified by the value j in the immediate field) of M(DP) is "0." Executes the next instruction when the contents of bit j of M(DP) is "1." Skips the next instruction when the contents of register A is equal to the contents of M(DP). Executes the next instruction when the contents of register A is not equal to the contents of M(DP). Skips the next instruction when the contents of register A is equal to the value n in the immediate field. Executes the next instruction when the contents of register A is not equal to the value n in the immediate field.
-
(A) = n
-
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4554 Group
MACHINE INSTRUCTIONS (continued)
Number of words
Parameter
Number of cycles
Instruction code Mnemonic
Hexadecimal notation
Function
Type of instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Ba BL p, a 0 0 1 BLA p 0 1 BM a 0 1 0 1 1 a6 a5 a4 a3 a2 a1 a0 1 1 p4 p3 p2 p1 p0
18a +a 0Ep +p 2pa +p +a 010 2pp +p 1aa
1 2
1 2
(PCL) a6-a0 (PCH) p (Note) (PCL) a6-a0
Branch operation
p6 p5 a6 a5 a4 a3 a2 a1 a0 0 0 0 0 1 0 0 0 0 0
2
2
(PCH) p (Note) (PCL) (DR2-DR0, A3-A0)
p6 p5 p4 0 1 0
p3 p2 p1 p0
a6 a5 a4 a3 a2 a1 a0
1
1
Subroutine operation
(SP) (SP) + 1 (SK(SP)) (PC) (PCH) 2 (PCL) a6-a0 (SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (Note) (PCL) a6-a0 (SP) (SP) + 1 (SK(SP)) (PC) (PCH) p (Note) (PCL) (DR2-DR0,A3-A0) (PC) (SK(SP)) (SP) (SP) - 1 (PC) (SK(SP)) (SP) (SP) - 1 (PC) (SK(SP)) (SP) (SP) - 1
BML p, a
0 1
0
1
1
0
p4 p3 p2 p1 p0
0Cp +p 2pa +p +a 030 2pp +p 046
2
2
p6 p5 a6 a5 a4 a3 a2 a1 a0 0 0 0 1 1 0 0 0 0 0
BMLA p
0 1
2
2
p6 p5 p4 0
p3 p2 p1 p0
RTI
0
0
0
1
0
0
0
1
1
0
1
1
Return operation
RT
0
0
0
1
0
0
0
1
0
0
044
1
2
RTS
0
0
0
1
0
0
0
1
0
1
045
1
2
Note: p is 0 to 63 for M34554M8, p is 0 to 95 for M34554MC and p is 0 to 127 for M34554ED.
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4554 Group
Skip condition
Carry flag CY
Datailed description
- -
- -
Branch within a page : Branches to address a in the identical page. Branch out of a page : Branches to address a in page p.
-
-
Branch out of a page : Branches to address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers D and A in page p.
-
-
Call the subroutine in page 2 : Calls the subroutine at address a in page 2.
-
-
Call the subroutine : Calls the subroutine at address a in page p.
-
-
Call the subroutine : Calls the subroutine at address (DR2 DR1 DR0 A3 A2 A1 A0)2 specified by registers D and A in page p.
-
-
Returns from interrupt service routine to main routine. Returns each value of data pointer (X, Y, Z), carry flag, skip status, NOP mode status by the continuous description of the LA/LXY instruction, register A and register B to the states just before interrupt. Returns from subroutine to the routine called the subroutine.
-
-
Skip at uncondition
-
Returns from subroutine to the routine called the subroutine, and skips the next instruction at uncondition.
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4554 Group
MACHINE INSTRUCTIONS (INDEX BY TYPES) (continued)
Number of words
Parameter
Number of cycles
Instruction code Mnemonic
Hexadecimal notation
Function
Type of instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 DI EI SNZ0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0
004 005 038
1 1 1
1 1 1
(INTE) 0 (INTE) 1 V10 = 0: (EXF0) = 1 ? After skipping, (EXF0) 0 V10 = 1: SNZ0 = NOP V11 = 0: (EXF1) = 1 ? After skipping, (EXF1) 0 V11 = 1: SNZ1 = NOP I12 = 1 : (INT0) = "H" ? I12 = 0 : (INT0) = "L" ?
SNZ1
0
0
0
0
1
1
1
0
0
1
039
1
1
SNZI0
0
0
0
0
1
1
1
0
1
0
03A
1
1
Interrupt operation
SNZI1
0
0
0
0
1
1
1
0
1
1
03B
1
1
I22 = 1 : (INT1) = "H" ? I22 = 0 : (INT1) = "L" ?
TAV1 TV1A TAV2 TV2A TAI1 TI1A TAI2 TI2A TPAA TAW1 TW1A TAW2
0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0
1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 0 1 0
0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 0 0 0 0 0 0 1 0 1 0 1
0 1 0 1 0 0 0 1 1 1 1 1 1 1 0 1 0 1 0
1 1 1 1 0 1 1 0 0 0 1 1 1 1 0 1 0 1 0
0 1 0 1 1 1 0 0 1 1 1 0 1 0 0 1 0 1 1
0 1 1 0 1 1 0 0 0 1 0 0 1 1 0 0 1 1 0
054 03F 055 03E 253 217 254 218 2AA 24B 20E 24C 20F 24D 210 24E 211 24F 212
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
(A) (V1) (V1) (A) (A) (V2) (V2) (A) (A) (I1) (I1) (A) (A) (I2) (I2) (A) (PA0) (A0) (A) (W1) (W1) (A) (A) (W2) (W2) (A) (A) (W3) (W3) (A) (A) (W4) (W4) (A) (A) (W5) (W5) (A)
Timer operation
TW2A TAW3 TW3A TAW4 TW4A TAW5 TW5A
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4554 Group
Skip condition
Carry flag CY
Datailed description
- - V10 = 0: (EXF0) = 1
- - -
Clears (0) to interrupt enable flag INTE, and disables the interrupt. Sets (1) to interrupt enable flag INTE, and enables the interrupt. When V10 = 0 : Skips the next instruction when external 0 interrupt request flag EXF0 is "1." After skipping, clears (0) to the EXF0 flag. When the EXF0 flag is "0," executes the next instruction. When V10 = 1 : This instruction is equivalent to the NOP instruction. (V10: bit 0 of interrupt control register V1) When V11 = 0 : Skips the next instruction when external 1 interrupt request flag EXF1 is "1." After skipping, clears (0) to the EXF1 flag. When the EXF1 flag is "0," executes the next instruction. When V11 = 1 : This instruction is equivalent to the NOP instruction. (V11: bit 1 of interrupt control register V1) When I12 = 1 : Skips the next instruction when the level of INT0 pin is "H." (I12: bit 2 of interrupt control register I1) When I12 = 0 : Skips the next instruction when the level of INT0 pin is "L."
V11 = 0: (EXF1) = 1
-
(INT0) = "H" However, I12 = 1 (INT0) = "L" However, I12 = 0 (INT1) = "H" However, I22 = 1 (INT1) = "L" However, I22 = 0 - - - - - - - - - - - - - - - - - - -
- -
- - - - - - - - - - - - - - - - - - - - -
When I22 = 1 : Skips the next instruction when the level of INT1 pin is "H." (I22: bit 2 of interrupt control register I2) When I22 = 0 : Skips the next instruction when the level of INT1 pin is "L." Transfers the contents of interrupt control register V1 to register A. Transfers the contents of register A to interrupt control register V1. Transfers the contents of interrupt control register V2 to register A. Transfers the contents of register A to interrupt control register V2. Transfers the contents of interrupt control register I1 to register A. Transfers the contents of register A to interrupt control register I1. Transfers the contents of interrupt control register I2 to register A. Transfers the contents of register A to interrupt control register I2. Transfers the contents of register A to timer control register PA. Transfers the contents of timer control register W1 to register A. Transfers the contents of register A to timer control register W1. Transfers the contents of timer control register W2 to register A. Transfers the contents of register A to timer control register W2. Transfers the contents of timer control register W3 to register A. Transfers the contents of register A to timer control register W3. Transfers the contents of timer control register W4 to register A. Transfers the contents of register A to timer control register W4. Transfers the contents of timer control register W5 to register A. Transfers the contents of register A to timer control register W5.
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4554 Group
Number of words
Parameter
Number of cycles
Instruction code Mnemonic
Hexadecimal notation
Function
Type of instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 TAW6 TW6A TABPS TPSAB 1 1 1 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1
250 213 275 235
1 1 1 1
1 1 1 1
(A) (W6) (W6) (A) (B) (TPS7-TPS4) (A) (TPS3-TPS0) (RPS7-RPS4) (B) (TPS7-TPS4) (B) (RPS3-RPS0) (A) (TPS3-TPS0) (A) (B) (T17-T14) (A) (T13-T10) (R17-R14) (B) (T17-T14) (B) (R13-R10) (A) (T13-T10) (A) (B) (T27-T24) (A) (T23-T20) (R27-R24) (B) (T27-T24) (B) (R23-R20) (A) (T23-T20) (A) (B) (T37-T34) (A) (T33-T30) (R37-R34) (B) (T37-T34) (B) (R33-R30) (A) (T33-T30) (A) (B) (T47-T44) (A) (T43-T40) (R4L7-R4L4) (B) (T47-T44) (B) (R4L3-R4L0) (A) (T43-T40) (A) (R4H7-R4H4) (B) (R4H3-R4H0) (A) (R17-R14) (B) (R13-R10) (A) (R37-R34) (B) (R33-R30) (A) (T47-T40) (R4L7-R4L0) (LC) (A) (RLC) (A)
TAB1 T1AB
1 1
0 0
0 0
1 0
1 1
1 1
0 0
0 0
0 0
0 0
270 230
1 1
1 1
TAB2 T2AB
1 1
0 0
0 0
1 0
1 1
1 1
0 0
0 0
0 0
1 1
271 231
1 1
1 1
Timer operation
TAB3 T3AB
1 1
0 0
0 0
1 0
1 1
1 1
0 0
0 0
1 1
0 0
272 232
1 1
1 1
TAB4 T4AB
1 1
0 0
0 0
1 0
1 1
1 1
0 0
0 0
1 1
1 1
273 233
1 1
1 1
T4HAB TR1AB TR3AB T4R4L TLCA
1 1 1 1 1
0 0 0 0 0
0 0 0 1 0
0 0 0 0 0
1 1 1 0 0
1 1 1 1 0
0 1 1 0 1
1 1 0 1 1
1 1 1 1 0
1 1 1 1 1
237 23F 23B 297 20D
1 1 1 1 1
1 1 1 1 1
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4554 Group
Skip condition
Carry flag CY
Datailed description
- - - -
- - - -
Transfers the contents of timer control register W6 to register A. Transfers the contents of register A to timer control register W6. Transfers the high-order 4 bits of prescaler to register B, and transfers the low-order 4 bits of prescaler to register A. Transfers the contents of register B to the high-order 4 bits of prescaler and prescaler reload register RPS, and transfers the contents of register A to the low-order 4 bits of prescaler and prescaler reload register RPS. Transfers the high-order 4 bits of timer 1 to register B, and transfers the low-order 4 bits of timer 1 to register A. Transfers the contents of register B to the high-order 4 bits of timer 1 and timer 1 reload register R1, and transfers the contents of register A to the low-order 4 bits of timer 1 and timer 1 reload register R1.
- -
- -
- -
- -
Transfers the high-order 4 bits of timer 2 to register B, and transfers the low-order 4 bits of timer 2 to register A. Transfers the contents of register B to the high-order 4 bits of timer 2 and timer 2 reload register R2, and transfers the contents of register A to the low-order 4 bits of timer 2 and timer 2 reload register R2.
- -
- -
Transfers the high-order 4 bits of timer 3 to register B, and transfers the low-order 4 bits of timer 3 to register A. Transfers the contents of register B to the high-order 4 bits of timer 3 and timer 3 reload register R3, and transfers the contents of register A to the low-order 4 bits of timer 3 and timer 3 reload register R3.
- -
- -
Transfers the high-order 4 bits of timer 4 to register B, and transfers the low-order 4 bits of timer 4 to register A. Transfers the contents of register B to the high-order 4 bits of timer 4 and timer 4 reload register R4L, and transfers the contents of register A to the low-order 4 bits of timer 4 and timer 4 reload register R4L.
- - - - -
- - - - -
Transfers the contents of register B to the high-order 4 bits of timer 4 reload register R4H, and transfers the contents of register A to the low-order 4 bits of timer 4 reload register R4H. Transfers the contents of register B to the high-order 4 bits of timer 1 reload register R1, and transfers the contents of register A to the low-order 4 bits of timer 1 reload register R1. Transfers the contents of register B to the high-order 4 bits of timer 3 reload register R3, and transfers the contents of register A to the low-order 4 bits of timer 3 reload register R3. Transfers the contents of timer 4 reload register R4L to timer 4. Transfers the contents of register A to timer LC and timer LC reload register RLC.
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4554 Group
Number of words
Parameter
Number of cycles
Instruction code Mnemonic
Hexadecimal notation
Function
Type of instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 SNZT1 SNZT2 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 RCP SCP TAPU0 TPU0A TAPU1 TPU1A 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 1 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 1 0 0 0 0 1 0 0 0 0 0 0 0 1 1 1 0 1 1 1 1 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 1 0 1 1 0 1 0 1 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 1 0 0
280 281 282 283 284 260 220 261 221 262 263 011 014 015 024 02B 28C 28D 257 22D 25E 22E
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
V12 = 0: (T1F) = 1 ? After skipping, (T1F) 0 V12 = 1: NOP V13 = 0: (T2F) = 1 ? After skipping, (T2F) 0 V13 = 1: NOP V20 = 0: (T3F) = 1 ? After skipping, (T3F) 0 V20 = 1: NOP V23 = 0: (T4F) = 1 ? After skipping, (T4F) 0 V23 = 1: NOP V21 = 0: (T5F) = 1 ? After skipping, (T5F) 0 V21 = 1: NOP (A) (P0) (P0) (A) (A) (P1) (P1) (A) (A) (P2) (A) (P3) (D) 1 (D(Y)) 0 (Y) = 0 to 9 (D(Y)) 1 (Y) = 0 to 9 (D(Y)) = 0 ? (Y) = 0 to 7 (C) 0 (C) 1 (A) (PU0) (PU0) (A) (A) (PU1) (PU1) (A)
Timer operation Input/Output operation
SNZT3 SNZT4 SNZT5 IAP0 OP0A IAP1 OP1A IAP2 IAP3 CLD RD SD SZD
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4554 Group
Skip condition
Carry flag CY
Datailed description
V12 = 0: (T1F) = 1 V13 = 0: (T2F) =1 V20 = 0: (T3F) = 1 V23 = 0: (T4F) =1 V21 = 0: (T5F) =1 - - - - - - - - - (D(Y)) = 0 However, (Y)=0 to 7 - - - - - -
- - - - - - - - - - - - - - -
Skips the next instruction when the contents of bit 2 (V12) of interrupt control register V1 is "0" and the contents of T1F flag is "1." After skipping, clears (0) to T1F flag. Skips the next instruction when the contents of bit 3 (V13) of interrupt control register V1 is "0" and the contents of T2F flag is "1." After skipping, clears (0) to T2F flag. Skips the next instruction when the contents of bit 0 (V20) of interrupt control register V2 is "0" and the contents of T3F flag is "1." After skipping, clears (0) to T3F flag. Skips the next instruction when the contents of bit 3 (V23) of interrupt control register V2 is "0" and the contents of T4F flag is "1." After skipping, clears (0) to T4F flag. Skips the next instruction when the contents of bit 1 (V21) of interrupt control register V2 is "0" and the contents of T5F flag is "1." After skipping, clears (0) to T5F flag. Transfers the input of port P0 to register A. Outputs the contents of register A to port P0. Transfers the input of port P1 to register A. Outputs the contents of register A to port P1. Transfers the input of port P2 to register A. Transfers the input of port P3 to register A. Sets (1) to all port D. Clears (0) to a bit of port D specified by register Y. Sets (1) to a bit of port D specified by register Y. Skips the next instruction when a bit of port D specified by register Y is "0." Executes the next instruction when a bit of port D specified by register Y is "1." Clears (0) to port C. Sets (1) to port C. Transfers the contents of pull-up control register PU0 to register A. Transfers the contents of register A to pull-up control register PU0. Transfers the contents of pull-up control register PU1 to register A. Transfers the contents of register A to pull-up control register PU1.
- - - - - -
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4554 Group
MACHINE INSTRUCTIONS (INDEX BY TYPES) (continued)
Number of words
Parameter
Number of cycles
Instruction code Mnemonic
Hexadecimal notation
Function
Type of instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 TAK0 TK0A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 1 0 0 0 1 1 0 1 0 1 1 1 1 1 1 1 1 1 0 0 0 0 1 1 0 0 1 0 0 1 0 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 1 1 1 0 1 1 1 1 0 1 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 0 0 1 0 0 0 0 0 1 1 0
256 21B 259 214 25A 215 228 229 22A 24A 20A 20B 20C 29A 29B 252 216 000 002 008 05B 003 2A0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
(A) (K0) (K0) (A) (A) (K1) (K1) (A) (A) (K2) (K2) (A) (FR0) (A) (FR1) (A) (FR2) (A) (A) (L1) (L1) (A) (L2) (A) (L3) (A) Ceramic resonator selected RC oscillator selected (A) (MR) (MR) (A) (PC) (PC) + 1 Transition to clock operating mode Transition to RAM back-up mode POF, POF2 instructions valid (P) = 1 ? (WDF1) = 1 ? After skipping, (WDF1) 0 Stop of watchdog timer function enabled When TABP p instruction is executed, P6 0 When TABP p instruction is executed, P6 1 At power down mode, voltage drop detection circuit valid
Input/Output operation LCD operation Clock operation Other operation
TAK1 TK1A TAK2 TK2A TFR0A TFR1A TFR2A TAL1 TL1A TL2A TL3A CMCK CRCK TAMR TMRA NOP POF POF2 EPOF SNZP WRST
DWDT RBK* SBK* SVDE
1 0 0 1
0 0 0 0
1 0 0 1
0 1 1 0
0 0 0 0
1 0 0 1
1 0 0 0
1 0 0 0
0 0 0 1
0 0 1 1
29C 040 041 293
1 1 1 1
1 1 1 1
Note: * (SBK, RBK) cannot be used in the M34554M8. The pages which can be referred by the TABP instruction after the SBK instruction is executed are 64 to 95 in the M34554MC.
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4554 Group
Skip condition
Carry flag CY
Datailed description
- - - - - - - - - - - - - - - - - - - - - (P) = 1 (WDF1) = 1
- - - - - - - - - - - - - - - - - - - - - - -
Transfers the contents of key-on wakeup control register K0 to register A. Transfers the contents of register A to key-on wakeup control register K0. Transfers the contents of key-on wakeup control register K1 to register A. Transfers the contents of register A to key-on wakeup control register K1. Transfers the contents of key-on wakeup control register K2 to register A. Transfers the contents of register A to key-on wakeup control register K2. Transferts the contents of register A to port output format control register FR0. Transferts the contents of register A to port output format control register FR1. Transferts the contents of register A to port output format control register FR2. Transfers the contents of LCD control register L1 to register A. Transfers the contents of register A to LCD control register L1. Transfers the contents of register A to LCD control register L2. Transfers the contents of register A to LCD control register L3. Selects the ceramic resonator for main clock, stops the on-chip oscillator (internal oscillator). Selects the RC oscillation circuit for main clock, stops the on-chip oscillator (internal oscillator). Transfers the contents of clock control regiser MR to register A. Transfers the contents of register A to clock control register MR. No operation; Adds 1 to program counter value, and others remain unchanged. Puts the system in clock operating mode by executing the POF instruction after executing the EPOF instruction. Puts the system in RAM back-up state by executing the POF2 instruction after executing the EPOF instruction. Makes the immediate after POF or POF2 instruction valid by executing the EPOF instruction. Skips the next instruction when the P flag is "1". After skipping, the P flag remains unchanged. Skips the next instruction when watchdog timer flag WDF1 is "1." After skipping, clears (0) to the WDF1 flag. Also, stops the watchdog timer function when executing the WRST instruction immediately after the DWDT instruction. Stops the watchdog timer function by the WRST instruction after executing the DWDT instruction. Sets referring data area to pages 0 to 63 when the TABP p instruction is executed. This instruction is valid only for the TABP p instruction. Sets referring data area to pages 64 to 127 when the TABP p instruction is executed. This instruction is valid only for the TABP p instruction. Validates the voltage drop detection circuit at power down (clock operating mode and RAM back-up mode) when VDCE pin is "H".
- - - -
- - - -
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4554 Group
INSTRUCTION CODE TABLE
D9-D4 000000 000001 000010 000011 000100 000101 000110 000111 001000 001001001010 001011001100 001101 001110 001111 D3-D0 notation 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 0 1 2 3 4 5 6 7 8 9 A B C D E F
Hex.
010000 011000 010111 011111
00 NOP - POF
01 BLA CLD -
02
03
04
05
06 A 0 A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 A 9 A 10 A 11 A 12 A 13 A 14 A 15
07 LA 0 LA 1 LA 2 LA 3 LA 4 LA 5 LA 6 LA 7 LA 8 LA 9 LA 10 LA 11 LA 12 LA 13 LA 14 LA 15
08
09
0A
0B
0C
0D BML BML BML BML BML BML BML BML BML BML BML BML BML BML BML BML
0E BL BL BL BL BL BL BL BL BL BL BL BL BL BL BL BL
0F BL BL BL BL BL BL BL BL BL BL BL BL BL BL BL BL
10-17 18-1F BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM B B B B B B B B B B B B B B B B
SZB BMLA RBK** TASP 0 SZB 1 SZB 2 SZB 3 SZD SEAn SEAM - - - - - - - - - SNZ0 SBK** TAD - - RT TAX TAZ TAV1
TABP TABP TABP TABP BML 32* 48* 0 16 TABP TABP TABP TABP BML 33* 49* 1 17 TABP TABP TABP TABP BML 34* 50* 2 18 TABP TABP TABP TABP BML 35* 51* 3 19 TABP TABP TABP TABP BML 36* 52* 4 20 TABP TABP TABP TABP BML 37* 53* 5 21 TABP TABP TABP TABP BML 38* 54* 6 22 TABP TABP TABP TABP BML 39* 55* 7 23 TABP TABP TABP TABP BML 40* 56* 8 24 TABP TABP TABP TABP BML 41* 57* 9 25 TABP TABP TABP TABP BML 42* 58* 10 26 TABP TABP TABP TABP BML 43* 59* 11 27 TABP TABP TABP TABP BML 44* 60* 12 28 TABP TABP TABP TABP BML 45* 61* 13 29 TABP TABP TABP TABP BML 46* 62* 14 30 TABP TABP TABP TABP BML 47* 63* 15 31
SNZP INY DI EI RC SC RD SD - DEY
RTS TAV2 RTI - LZ 0 LZ 1 LZ 2 LZ 3 RB 0 RB 1 RB 2 RB 3 - - - - - EPOF SB 0 SB 1 SB 2 SB 3
POF2 AND - AM AMC TYA - TBA - OR
TDA SNZ1
TEAB TABE SNZI0 - CMA RAR TAB TAY - - - - SNZI1 - - TV2A
SZC TV1A
The above table shows the relationship between machine language codes and machine language instructions. D3-D0 show the low-order 4 bits of the machine language code, and D9-D4 show the high-order 6 bits of the machine language code. The hexadecimal representation of the code is also provided. There are one-word instructions and two-word instructions, but only the first word of each instruction is shown. Do not use code marked "-." The codes for the second word of a two-word instruction are described below. The second word 1p paaa aaaa 1p paaa aaaa 1p pp00 pppp 1p pp00 pppp 00 0111 nnnn 00 0010 1011 * ** (SBK and RBK instructions) cannot be used in the M34554M8. * * cannot be used after the SBK instruction is executed in the M34554MC. * A page referred by the TABP instruction can be switched by the SBK and RBK instructions in the M34554MC/ED. * The pages which can be referred by the TABP instruction after the SBK instruction is executed are 64 to 95 in the M34554MC. * The pages which can be referred by the TABP instruction after the SBK instruction is executed are 64 to 127 in the M34554ED. (Ex. TABP 0 TABP 64) * The pages which can be referred by the TABP instruction after the RBK instruction is executed are 0 to 63. * When the SBK instruction is not used, the pages which can be referred by the TABP instruction are 0 to 63.
BL BML BLA BMLA SEA SZD
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4554 Group
INSTRUCTION CODE TABLE (continued)
D9-D4 100000 100001 100010 100011 100100 100101 100110 100111 101000 101001101010 101011 101100 101101 101110 101111 D3-D0 notation 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 0 1 2 3 4 5 6 7 8 9 A B C D E F
Hex.
110000 111111
20 - - - - - - - - - - TL1A
21
22
23
24 - - - - - - - - - -
25
26
27
28
29 - - -
2A WRST - - - - - - - - -
2B TMA 0 TMA 1 TMA 2 TMA 3 TMA 4 TMA 5 TMA 6 TMA 7 TMA 8 TMA 9 TMA 10 TMA 11 TMA 12 TMA 13 TMA 14 TMA 15
2C TAM 0 TAM 1 TAM 2 TAM 3 TAM 4 TAM 5 TAM 6 TAM 7 TAM 8 TAM 9 TAM 10 TAM 11 TAM 12 TAM 13 TAM 14 TAM 15
2D
2E
2F
30-3F
TW3A OP0A T1AB TW4A OP1A T2AB TW5A TW6A TK1A TK2A TMRA TI1A - - - - - - T3AB T4AB - TPSAB - T4HAB - - -
TAW6 IAP0 TAB1 SNZT1 - IAP1 TAB2 SNZT2
XAM XAMI XAMD LXY 0 0 0 XAM XAMI XAMD LXY 1 1 1 XAM XAMI XAMD LXY 2 2 2 XAM XAMI XAMD LXY 3 3 3 XAM XAMI XAMD LXY 4 4 4 XAM XAMI XAMD LXY 5 5 5 XAM XAMI XAMD LXY 6 6 6 XAM XAMI XAMD LXY 7 7 7 XAM XAMI XAMD LXY 8 8 8 XAM XAMI XAMD LXY 9 9 9 XAM XAMI XAMD LXY 10 10 10 XAM XAMI XAMD LXY 11 11 11 XAM XAMI XAMD LXY 12 12 12 XAM XAMI XAMD LXY 13 13 13 XAM XAMI XAMD LXY 14 14 14 XAM XAMI XAMD LXY 15 15 15
TAMR IAP2 TAB3 SNZT3 TAI1 TAI2 - TAK0 TAPU0 - TAK1
IAP3 TAB4 SNZT4 SVDE - - - - - - - - - - - - - TABPS - - - - - - - - - - SNZT5 - - - - - - - - - - T4R4L - -
TI2A TFR0A - - TFR1A TFR2A - - TPU0A TPU1A -
TAL1 TAK2 - - -
CMCK TPAA CRCK - - - - -
TL2A TK0A TL3A TLCA TW1A TW2A - - - -
TR3AB TAW1 - - - TAW2 TAW3
RCP DWDT SCP - - - - -
TAW4 TAPU1 -
TR1AB TAW5
The above table shows the relationship between machine language codes and machine language instructions. D3-D0 show the loworder 4 bits of the machine language code, and D9-D4 show the high-order 6 bits of the machine language code. The hexadecimal representation of the code is also provided. There are one-word instructions and two-word instructions, but only the first word of each instruction is shown. Do not use code marked "-." The codes for the second word of a two-word instruction are described below. The second word 1p paaa aaaa 1p paaa aaaa 1p pp00 pppp 1p pp00 pppp 00 0111 nnnn 00 0010 1011
BL BML BLA BMLA SEA SZD
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4554 Group
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VI VI VO VO VO Pd Topr Tstg Parameter Supply voltage Input voltage P0, P1, P2, P3, D0-D7, RESET, XIN, XCIN, VDCE Input voltage CNTR0, CNTR1, INT0, INT1 Output voltage P0, P1, D0-D9, RESET, CNTR0, CNTR1 Output voltage C, XOUT, XCOUT Output voltage SEG0-SEG31, COM0-COM3 Power dissipation Operating temperature range Storage temperature range Ta = 25 C Output transistors in cut-off state Conditions Ratings -0.3 to 6.5 -0.3 to VDD+0.3 -0.3 to VDD+0.3 -0.3 to VDD+0.3 -0.3 to VDD+0.3 -0.3 to VDD+0.3 300 -20 to 85 -40 to 125 Unit V V V V V V mW C C
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4554 Group
RECOMMENDED OPERATING CONDITIONS 1
(Mask ROM version: Ta = -20 C to 85 C, VDD = 2 to 5.5 V, unless otherwise noted) (One Time PROM version: Ta = -20 C to 85 C, VDD = 2.5 to 5.5 V, unless otherwise noted) Symbol VDD Parameter Supply voltage (when ceramic resonator is used) Conditions Mask ROM version f(STCK) 6 MHz f(STCK) 4.4 MHz f(STCK) 2.2 MHz One Time PROM version f(STCK) 6 MHz f(STCK) 4.4 MHz f(STCK) 2.2 MHz VDD VRAM VSS VLC3 VIH VIH VIH VIH VIL VIL VIL VIL IOH(peak) IOH(peak) IOH(avg) IOH(avg) IOL(peak) IOL(peak) IOL(peak) IOL(avg) IOL(avg) IOL(avg) IOH(avg) IOL(avg) Supply voltage (when RC oscillation is used) RAM back-up voltage Supply voltage LCD power supply (Note 1) "H" level input voltage "H" level input voltage "H" level input voltage "H" level input voltage "L" level input voltage "L" level input voltage "L" level input voltage "L" level input voltage "H" level peak output current "H" level peak output current "H" level average output current (Note 2) "H" level average output current (Note 2) "L" level peak output current "L" level peak output current "L" level peak output current "L" level average output current (Note 2) "L" level average output current (Note 2) "L" level average output current (Note 2) "H" level total average current "L" level total average current P0, P1, D0-D6 D7, C, CNTR0, CNTR1 P0, P1, D0-D6 D7-D9, C, RESET, CNTR0, CNTR1
Notes 1: At 1/2 bias: VLC1 = VLC2 = (1/2)*VLC3 At 1/3 bias: VLC1 = (1/3)*VLC3, VLC2 = (2/3)*VLC3 2: The average output current is the average value during 100 ms.
Limits Min. 4 2.7 2 4 2.7 2.5 2.7 1.8 0 2 2.5 0.8VDD 0.7VDD 0.85VDD 0.8VDD 0 0 0 0 VDD VDD VDD VDD VDD VDD 0.2VDD 0.3VDD 0.3VDD 0.15VDD -20 -10 -30 -15 -10 -5 -20 -10 24 12 24 12 10 4 12 6 15 7 5 2 -60 -60 80 80 Typ. Max. 5.5 5.5 5.5 5.5 5.5 5.5 5.5
Unit V
f(STCK) 4.4 MHz at RAM back-up mode Mask ROM version One Time PROM version P0, P1, P2, P3, D0-D7, VDCE XIN, XCIN
RESET
V V V V V V V V V V V V mA mA mA mA mA mA mA mA mA mA mA mA
CNTR0, CNTR1, INT0, INT1 P0, P1, P2, P3, D0-D7, VDCE XIN, XCIN
RESET
CNTR0, CNTR1, INT0, INT1 VDD = 5 V P0, P1, D0-D6 VDD = 3 V D7, C CNTR0, CNTR1 P0, P1, D0-D6 D7, C CNTR0, CNTR1 P0, P1 D0-D6, C CNTR0, CNTR1
RESET
VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V
P0, P1 D0-D6, C CNTR0, CNTR1
RESET
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4554 Group
RECOMMENDED OPERATING CONDITIONS 2
(Mask ROM version: Ta = -20 C to 85 C, VDD = 2 to 5.5 V, unless otherwise noted) (One Time PROM version: Ta = -20 C to 85 C, VDD = 2.5 to 5.5 V, unless otherwise noted) Symbol f(XIN) Parameter Oscillation frequency (with a ceramic resonator) Mask ROM version Conditions Through mode VDD = 4 to 5.5 V VDD = 2.7 to 5.5 V VDD = 2 to 5.5 V Frequency/2 mode VDD = 2.7 to 5.5 V VDD = 2 to 5.5 V Frequency/4, 8 mode VDD = 2 to 5.5 V VDD = 4 to 5.5 V One Time PROM Through mode VDD = 2.7 to 5.5 V version VDD = 2.5 to 5.5 V Frequency/2 mode VDD = 2.7 to 5.5 V VDD = 2.5 to 5.5 V Frequency/4, 8 mode VDD = 2.5 to 5.5 V f(XIN) f(XIN) Oscillation frequency (at RC oscillation) (Note) Oscillation frequency (with a ceramic resonator selected, external clock input) Mask ROM version Through mode VDD = 4 to 5.5 V VDD = 2.7 to 5.5 V VDD = 2 to 5.5 V Frequency/2 mode VDD = 2.7 to 5.5 V VDD = 2 to 5.5 V Frequency/4, 8 mode VDD = 2 to 5.5 V One Time PROM Through mode version VDD = 4 to 5.5 V VDD = 2.7 to 5.5 V VDD = 2.5 to 5.5 V Frequency/2 mode VDD = 2.7 to 5.5 V VDD = 2.5 to 5.5 V Frequency/4, 8 mode VDD = 2.5 to 5.5 V f(XCIN) Oscillation frequency (sub-clock) f(CNTR) Timer external input frequency tw(CNTR) Timer external input period TPON ("H" and "L" pulse width) Power-on reset circuit valid supply voltage rising time Quartz-crystal oscillator CNTR0, CNTR1 CNTR0, CNTR1 Mask ROM version One Time PROM version VDD = 0 2 V VDD = 0 2.5 V 3/f(STCK) 4.8 3.2 1.6 4.8 3.2 4.8 4.8 3.2 1.6 4.8 3.2 4.8 kHz 50 f(STCK)/6 Hz s 100 100 s MHz VDD = 2.7 to 5.5 V Limits Typ. Max. 6 4.4 2.2 6 4.4 6 6 4.4 2.2 6 4.4 6 4.4 MHz Unit MHz
Min.
Note: The frequency is affected by a capacitor, a resistor and a microcomputer. So, set the constants within the range of the frequency limits.
When ceramic resonator is used.
f(STCK) [MHz] 6
When RC oscillation is used.
f(STCK) [MHz]
When external clock is used.
f(STCK) [MHz]
4.8 4.4 4.4 3.2
2.2
Recommended operating condition
Recommended operating condition
1.6
Recommended operating condition
2 (2.5)
2.7
4
5.5
VDD [V]
2.7
5.5
VDD [V]
2 (2.5)
2.7
4
5.5
VDD [V]
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4554 Group
ELECTRICAL CHARACTERISTICS 1
(Mask ROM version: Ta = -20 C to 85 C, VDD = 2 to 5.5 V, unless otherwise noted) (One Time PROM version: Ta = -20 C to 85 C, VDD = 2.5 to 5.5 V, unless otherwise noted) Symbol VOH Parameter "H" level output voltage P0, P1, D0-D6 VDD = 3 V VOH "H" level output voltage D7, C, CNTR0, CNTR1 VDD = 3 V VOL "L" level output voltage P0, P1 VDD = 3 V VOL "L" level output voltage D0-D9, C, CNTR0, CNTR1 VDD = 3 V VOL "L" level output voltage RESET VDD = 3 V IIH "H" level input current P0, P1, P2, P3, D0-D7, VDCE, RESET CNTR0, CNTR1, INT0, INT1 IIL "L" level input current P0, P1, P2, P3, D0-D7, VDCE, CNTR0, CNTR1, INT0, INT1 VI = 0 V P0, P1 No pull-up -1 VI = VDD VDD = 5 V VDD = 5 V VDD = 5 V VDD = 5 V VDD = 5 V Test conditions IOH = -10 mA IOH = -3 mA IOH = -5 mA IOH = -1 mA IOH = -20 mA IOH = -6 mA IOH = -10 mA IOH = -3 mA IOL = 12 mA IOL = 4 mA IOL = 6 mA IOL = 2 mA IOL = 15 mA IOL = 5 mA IOL = 9 mA IOL = 3 mA IOL = 5 mA IOL = 1 mA IOL = 2 mA Limits Min. 3 4.1 2.1 2.4 3 4.1 2.1 2.4 2 0.9 0.9 0.6 2 0.9 1.4 0.9 2 0.6 0.9 1 V V V V Typ. Max. Unit V
A
A
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4554 Group
ELECTRICAL CHARACTERISTICS 2
(Mask ROM version: Ta = -20 C to 85 C, VDD = 2 to 5.5 V, unless otherwise noted) (One Time PROM version: Ta = -20 C to 85 C, VDD = 2.5 to 5.5 V, unless otherwise noted) Symbol IDD Parameter Supply current at active mode VDD = 5 V Test conditions f(STCK) = f(XIN)/8 f(STCK) = f(XIN)/4 f(STCK) = f(XIN)/2 f(STCK) = f(XIN) VDD = 5 V f(XIN) = 4 MHz f(XCIN) = 32 kHz VDD = 3 V f(XIN) = 4 MHz f(XCIN) = 32 kHz at active mode (with a quartz-crystal oscillator) VDD = 5 V f(XIN) = stop f(XCIN) = 32 kHz VDD = 3 V f(XIN) = stop f(XCIN) = 32 kHz at clock operation mode (POF instruction execution) at RAM back-up mode (POF2 instruction execution) RPU Pull-up resistor value f(XCIN) = 32 kHz Ta = 25 C VDD = 5 V VDD = 3 V VI = 0 V VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V f(RING) f(XIN) On-chip oscillator clock frequency Frequency error (with RC oscillation, error of external R, C not included ) (Note) RCOM RSEG RVLC COM output impedance SEG output impedance Internal resistor for LCD power supply VDD = 5 V VDD = 3 V VDD = 5 V VDD = 3 V When dividing resistor 2r 3 selected When dividing resistor 2r 2 selected When dividing resistor r 3 selected When dividing resistor r 2 selected
Note: When RC oscillation is used, use the external 33 pF capacitor (C).
Limits Min. Typ. 1.4 1.6 2 2.8 1.1 1.2 1.5 2 0.4 0.5 0.6 0.8 55 60 65 70 12 13 14 15 20 5 0.1 Max. 2.8 3.2 4 5.6 2.2 2.4 3 4 0.8 1 1.2 1.6 110 120 130 140 24 26 28 30 60 15 1 10 6
Unit mA
(with a ceramic resonator) f(XIN) = 6 MHz f(XCIN) = 32 kHz
f(STCK) = f(XIN)/8 f(STCK) = f(XIN)/4 f(STCK) = f(XIN)/2 f(STCK) = f(XIN) f(STCK) = f(XIN)/8 f(STCK) = f(XIN)/4 f(STCK) = f(XIN)/2 f(STCK) = f(XIN) f(STCK) = f(XIN)/8 f(STCK) = f(XIN)/4 f(STCK) = f(XIN)/2 f(STCK) = f(XIN) f(STCK) = f(XIN)/8 f(STCK) = f(XIN)/4 f(STCK) = f(XIN)/2 f(STCK) = f(XIN) VDD = 5 V VDD = 3 V
mA
mA
A
A
A A
VDD = 5 V VDD = 3 V
30 50
60 120 0.2 0.2 1 0.4
125 250
k V V
P0, P1, RESET VT+ - VT- Hysteresis CNTR0, CNTR1, INT0, INT1 VT+ - VT- Hysteresis RESET
VDD = 5 V VDD = 3 V VDD = 5 V 10 %, Ta = 25 C VDD = 5 V 10 %, Ta = 25 C
1 0.5
2 1
3 1.8 17 17
MHz %
1.5 2 1.5 2 300 200 150 100 480 320 240 160
7.5 10 7.5 10 960 640 480 320
k k k
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
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4554 Group
VOLTAGE DROP DETECTION CIRCUIT CHARACTERISTICS
(Ta = -20 C to 85 C, unless otherwise noted) Symbol VRST IRST TRST Parameter Detection voltage (Note 1) Ta = 25 C Operation current Detection time at power down (Note 2) VDD (VRST-0.1 V) (Note 3) VDD = 5 V VDD = 3 V Test conditions Min. 1.4 1.1 Limits Typ. 1.5 50 30 0.2 Max. 1.6 1.9 100 60 1.2 Unit V
A
ms
Notes 1: The detected voltage (VRST) is defined as the voltage when reset occurs when the supply voltage (VDD) is falling. 2: After the SVDE instruction is executed, the voltage drop detectin circuit is valid at power down mode. 3: The detection time (TRST) is defined as the time until reset occurs when the supply voltage (VDD) is falling to [VRST-0.1 V].
BASIC TIMING DIAGRAM
Parameter
Machine cycle Pin (signal) name
Mi
Mi+1
System clock
STCK
Port D output
D0-D9
Port D input
D0-D7
Ports P0, P1 output
P00-P03 P10-P13
Ports P0, P1, P2, P3 input
P00-P03 P10-P13 P20-P23 P30-P33 INT0, INT1
Interrupt input
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4554 Group
BUILT-IN PROM VERSION
In addition to the mask ROM versions, the 4554 Group has the One Time PROM versions whose PROMs can only be written to and not be erased. The built-in PROM version has functions similar to those of the mask ROM versions, but it has PROM mode that enables writing to built-in PROM. Table 25 shows the product of built-in PROM version. Figure 61 shows the pin configurations of built-in PROM versions. The One Time PROM version has pin-compatibility with the mask ROM version. Table 25 Product of built-in PROM version PROM size Part number ( 10 bits) M34554EDFP 16384 words
RAM size ( 4 bits) 512 words
Package 64P6N-A
ROM type One Time PROM [shipped in blank]
PIN CONFIGURATION (TOP VIEW)
COM0 COM1 COM2 COM3
P00
P01
P02
P03
P10
P11
P12
P13
D0
D1
D2
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 SEG0/VLC3 SEG1/VLC2 SEG2/VLC1 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 D4 D5 D6 CNVSS VDCE XCIN XCOUT VDD VSS XOUT XIN RESET D7/CNTR0 C/CNTR1 D8/INT0 D9/INT1
M34554EDFP
D3
25 24 23 22 21 20 19 18 17
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24/P33
SEG25/P32
SEG26/P31
SEG27/P30
SEG28/P23
SEG29/P22
SEG30/P21
Fig. 61 Pin configuration of built-in PROM version
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
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SEG31/P20
4554 Group
(1) PROM mode
The built-in PROM version has a PROM mode in addition to a normal operation mode. The PROM mode is used to write to and read from the built-in PROM. In the PROM mode, the programming adapter can be used with a general-purpose PROM programmer to write to or read from the built-in PROM as if it were M5M27C256K. Programming adapter is listed in Table 26. Contact addresses at the end of this data sheet for the appropriate PROM programmer. * Writing and reading of built-in PROM Programming voltage is 12.5 V. Write the program in the PROM of the built-in PROM version as shown in Figure 62.
Table 26 Programming adapter Part number Name of Programming Adapter M34554EDFP PCA7448
Address 000016
1
1
1
D4 D3
D2
D1
D0
Low-order 5 bits
(2) Notes on handling
A high-voltage is used for writing. Take care that overvoltage is not applied. Take care especially at turning on the power. For the One Time PROM version shipped in blank, Renesas Technology corp. does not perform PROM writing test and screening in the assembly process and following processes. In order to improve reliability after writing, performing writing and test according to the flow shown in Figure 63 before using is recommended (Products shipped in blank: PROM contents is not written in factory when shipped).
3FFF16 400016
1
1
1
D4 D3
D2
D1
D0
High-order 5 bits
7FFF16
Fig. 62 PROM memory map
(3) Difference between Mask ROM version and One Time PROM version
Mask ROM version and One Time PROM version have some difference of the following characteristics within the limits of an electrical property by difference of a manufacture process, built-in ROM, and a layout pattern. * a characteristic value * a margin of operation * the amount of noise-proof * noise radiation, etc., Accordingly, be careful of them when swithcing.
Writing with PROM programmer
Screening (Leave at 150 C for 40 hours) (Note)
Verify test with PROM programmer
Function test in target device Note: Since the screening temperature is higher than storage temperature, never expose the microcomputer to 150 C exceeding 100 hours.
Fig. 63 Flow of writing and test of the product shipped in blank
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
page 135 of 136
4554 Group
PACKAGE OUTLINE
64P6N-A
EIAJ Package Code QFP64-P-1414-0.80 HD D JEDEC Code -- Weight(g) 1.11 Lead Material Alloy 42
Plastic 64pin 1414mm body QFP
MD
e
1
48
b2
64
49
I2 Recommended Mount Pad Symbol A A1 A2 b c D E e HD HE L L1 y b2 I2 MD ME Dimension in Millimeters Min Nom Max 3.05 -- -- 0 0.1 0.2 2.8 -- -- 0.3 0.35 0.45 0.13 0.15 0.2 13.8 14.0 14.2 13.8 14.0 14.2 0.8 -- -- 16.5 16.8 17.1 16.5 16.8 17.1 0.4 0.6 0.8 1.4 -- -- 0.1 -- -- 0 10 -- 0.5 -- -- 1.3 -- -- 14.6 -- -- 14.6 -- --
HE E
16
33
17
32
A
L1
A2
F
A1
e y
b
L Detail F
Rev.3.00 Aug 06, 2004 REJ03B0043-0300Z
page 136 of 136
c
ME
REVISION HISTORY
Rev. Date Page 1.00 Nov. 27, 2001 - First edition issued
4554 Group Data Sheet
Description Summary
2.00 Jul. 01, 2003 All pages "Preliminary Notice: This is not a final specification. Some parametric limits are subject to change." eliminated. 2.01 Sep.18, 2003 54 Note on voltage drop detection circuit added. 55 Table 15 Port level revised. 66 Note on voltage drop detection circuit added. 3.00 Aug. 06, 2004 All pages Words standardized: On-chip oscillator 4 Power dissipation: "Ta=25C" added. ____________ 5 Description of RESET pin revised. 29 Fig.20: Some description added. 30 Fig.23: Some description added. 34 Fig.26 : Note 9 added. 44 Some description revised. 45 Fig.31 : "DI" instruction added. 50 (5) LCD power supply circuit revised. 53 Fig.40 : State of quartz-crystal oscillator added. 57 Fig.44 : Note 5 added. 64 Fig.56: Some description added. 65 Fig.57: Some description added. 66 Note on Power Source Voltage added.
Sales Strategic Planning Div.
Keep safety first in your circuit designs!
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. Notes regarding these materials 1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp. product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or a third party. 2. Renesas Technology Corp. assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples contained in these materials. 3. All information contained in these materials, including product data, diagrams, charts, programs and algorithms represents information on products at the time of publication of these materials, and are subject to change by Renesas Technology Corp. without notice due to product improvements or other reasons. It is therefore recommended that customers contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor for the latest product information before purchasing a product listed herein. The information described here may contain technical inaccuracies or typographical errors. Renesas Technology Corp. assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies or errors. Please also pay attention to information published by Renesas Technology Corp. by various means, including the Renesas Technology Corp. Semiconductor home page (http://www.renesas.com). 4. When using any or all of the information contained in these materials, including product data, diagrams, charts, programs, and algorithms, please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products. Renesas Technology Corp. assumes no responsibility for any damage, liability or other loss resulting from the information contained herein. 5. Renesas Technology Corp. semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. 6. The prior written approval of Renesas Technology Corp. is necessary to reprint or reproduce in whole or in part these materials. 7. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. 8. Please contact Renesas Technology Corp. for further details on these materials or the products contained therein.
RENESAS SALES OFFICES
Renesas Technology America, Inc. 450 Holger Way, San Jose, CA 95134-1368, U.S.A Tel: <1> (408) 382-7500 Fax: <1> (408) 382-7501 Renesas Technology Europe Limited. Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, United Kingdom Tel: <44> (1628) 585 100, Fax: <44> (1628) 585 900 Renesas Technology Europe GmbH Dornacher Str. 3, D-85622 Feldkirchen, Germany Tel: <49> (89) 380 70 0, Fax: <49> (89) 929 30 11 Renesas Technology Hong Kong Ltd. 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Hong Kong Tel: <852> 2265-6688, Fax: <852> 2375-6836 Renesas Technology Taiwan Co., Ltd. FL 10, #99, Fu-Hsing N. Rd., Taipei, Taiwan Tel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999 Renesas Technology (Shanghai) Co., Ltd. 26/F., Ruijin Building, No.205 Maoming Road (S), Shanghai 200020, China Tel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952 Renesas Technology Singapore Pte. Ltd. 1, Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632 Tel: <65> 6213-0200, Fax: <65> 6278-8001
http://www.renesas.com
(c)2001, 2004. Renesas Technology Corp., All rights reserved. Printed in Japan.
Colophon .1.0


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