KL5KUSB116 kawasaki lsi 2570 north first street suite 301 san jose, ca 95131 tel: (408) 570-0555 fax: (408) 570-0567 www.klsi.com 1 ver. 2.1 usb to serial description the kawasaki usb to serial enables your system to have the capability to communicate between the usb (universal serial bus) port and serial port peripherals. this device meets the usb 1.0/1.1 and standard serial port specifications. all the advantages of usb are available to peripherals with serial port interface such as plug and play capabilities. with the usb standard of high-speed data transfers, this device is ideal for connections to high-speed modems or isdn terminal adapters. kawasaki?s device and software enable the usb interface to be transparent to the peripheral and requires no firmware changes. this makes it possible for peripherals with serial interfaces to easily interface with usb with minimum modifications. this feature is ideal for legacy applications. features advanced 16 bit processor for usb transaction processing and control data processing compliant with the usb 1.0/1.1 (universal serial bus) serial port 230kbps 128 byte fifo plug and play compatible i 2 c interface utilizes low cost external crystal circuitry 1.5k x 16 internal ram buffer for fast communications debug uart for debug and code development usb host device drivers available single-chip solution in a 44 pin qfp block diagram pll & clock generator 16 bit address / data bus 16 bit processor serial interface engine ram (3kb) timer 0 usb interface mask rom eeprom serial interface timer 1 vp vm clk x2 scl sda watchdog timer debug uart uart_txd uart_rxd dtr rts dcd dsr txd rxd cts ri serial interface (4) channel 1
KL5KUSB116 kawasaki lsi 2570 north first street suite 301 san jose, ca 95131 tel: (408) 570-0555 fax: (408) 570-0567 www.klsi.com 2 ver. 2.1 usb to serial KL5KUSB116 application block diagram pin diagram 44qfp optional external memory usb serial port serial device serial eeprom KL5KUSB116 usb serial xd_0 xd_1 xd_2 xd_3 gnd xd_4 xd_5 xd_6 gnd xd_7 vdd vdd sda pu_1 gpio_31 gpio_29 ri npwr _pwn uart_txd gnd vp vm x2 clk txd uart_txd pllen vdd cp_out v co_in gnd scl vdd ntest nreset gnd dcd dsr cts dtr rts rxd gnd vdd KL5KUSB116 34 35 36 37 38 39 40 41 42 43 44 22 21 20 19 18 17 16 15 14 13 12 33 32 31 30 29 28 27 26 25 24 23 1 2 3 4 5 6 7 8 9 10 11
KL5KUSB116 kawasaki lsi 2570 north first street suite 301 san jose, ca 95131 tel: (408) 570-0555 fax: (408) 570-0567 www.klsi.com 3 ver. 2.1 usb to serial pin description pin # lqfp i/o pin name description 1 vdd vdd 2 in/out sda serial eeprom serial data. connect to eeprom/sda 3 in pu_1 pull-up to usb +pin for high speed 4 in/out gpio_31 gpio_31 5 in/out gpio_29 gpio_29 6 in ri ring indicate 7 out npwr_dwn active low powerdown mode signal 8 in uart_txd debug uart txd 9 gnd ground 10 in/out vp usb +pin 11 in/out vm usb -pin 12 vdd vdd 13 in/out scl serial eeprom clock. connect to eeprom/scl 14 gnd ground 15 in vco_in pll vco in 16 out cp_out pll vdo out 17 vdd vdd 18 in pllen pll enable 19 in uart_rxd debug uart rxd 20 out txd transmit data 21 in clk 12mhz clock/crystal input 22 out x2 12mhz crystal output 23 vdd vdd 24 gnd ground 25 in rxd receive data 26 out rts request to send 27 out dtr data terminal ready 28 in cts clear to send 29 in dsr data set ready 30 in dcd data carrier detect 31 gnd ground 32 in nreset reset pin 33 in ntest test pin. disconnect for normal operation. 34 in/out xd_0* external data pins 35 in/out xd_1* external data pins 36 in/out xd_2* external data pins 37 in/out xd_3* external data pins 38 gnd ground 39 in/out xd_4* external data pins 40 in/out xd_5* external data pins 41 in/out xd_6* external data pins 42 gnd ground 43 in/out xd_7* external data pins 44 vdd vdd *pins are 5v tolerant
KL5KUSB116 kawasaki lsi 2570 north first street suite 301 san jose, ca 95131 tel: (408) 570-0555 fax: (408) 570-0567 www.klsi.com 4 ver. 2.1 usb to serial function description 16 bit processor the integrated 16 bit processor serves as a micro controller for usb peripherals. the processor can execute approximately five million instructions per second. with this processing power it allows the design of intelligent peripherals that can process data prior to passing it on to the host pc, thus improving overall performance of the system. the masked rom in the this device or external memory contains a specialized instruction set that has been designed for highly efficient coding of processing algorithms and usb transaction processing. the 16-bit processor is designed for efficient data execution by having direct access to the ram buffer, external memory, i/o interfaces, and all the control and status registers the processor supports prioritized vectored hardware interrupts and has as many as 240 software interrupt vectors. the processor provides six addressing modes, supporting memory-to-memory, memory-to- register, register-to-register, immediate-to-register or immediate-to-memory operations. register, direct, immediate, indirect, and indirect indexed addressing modes are supported. in addition, there is an auto-increment mode in which a register, used as an address pointer is automatically incremented after each use, making repetitive operations more efficient both from a programming and a performance standpoint. the processor features a full set of program control, logical, and integer arithmetic instructions. all instructions are sixteen bits wide, although some instructions require operands, which may occupy another one or two words. several special ? short immediate? instructions are available, so that certain frequently used operations with small constant operand will fit into a 16-bit instruction. the processor ? divide/multiply function the processor?s divide/multiply function contains all the instructions of the base processor that additionally includes integer divide and multiply instructions. a signed multiply instructions takes two 16-bit operands and returns a 32-bit result. a signed divide instruction divides a 32-bit operand by a 16-bit operand. ram buffer the usb controller contains internal buffer memory. the memory is used to buffer data and usb packets and accessed by the 16 bit processor and the sie. usb transactions are automatically routed to the memory buffer. the 16-bit processor has the ability to set up pointers and block sizes in buffer memory for usb transactions. data is read from the interface and is processed and packetized by the 16-bit i/o processor.
KL5KUSB116 kawasaki lsi 2570 north first street suite 301 san jose, ca 95131 tel: (408) 570-0555 fax: (408) 570-0567 www.klsi.com 5 ver. 2.1 usb to serial pll clock generator the pll circuitry is provided to generate the internal 48mhz clock. this circuitry is designed to allow use of a low cost 12 mhz external crystal which is connected to clk and x2. if an external 12 mhz clock is available in the application, it may be used in lieu of the crystal circuit and connected directly to the clk input pin. usb interface the usb controller meets the universal serial bus (usb) specification ver 1.0/1.1. the transceiver is capable of transmitting and receiving serial data at the usb?s full speed, 12 mbits/sec data rate. the driver portion of the transceiver is differential, while the receive section is comprised of a differential receiver and two single ended receivers. internally, the transceiver interfaces to the sie logic. externally, the transceiver connects to the physical layer of the usb. uart serial interface one uart serial port is provided. the port can be configured for a wide selection of baud rates, 300 to 230.4 k baud, and support a set of control signals. the uart provides a means for external serial devices to access the usb. debug uart an independent uart serial port is provided for debug and code development. the port can be configured for a wide selection of baud rates, 7200 to 115.2k baud. the port provides transmit and receive data support only. serial eeprom support the usb controller serial interface is used to provide access to external eeprom?s. the interface can support a variety of serial eeprom formats.
KL5KUSB116 kawasaki lsi 2570 north first street suite 301 san jose, ca 95131 tel: (408) 570-0555 fax: (408) 570-0567 www.klsi.com 6 ver. 2.1 usb to serial electrical characteristics absolute maximum ratings parameter symbol ratings unit supply voltage v dd -0.3 to 4.0 v v in (normal) -0.3 to v dd +0.3 v input voltage v in (5v tolerant) -0.3 to 6.0 v storage temperature tstg -55 to 125 c dc characteristics and conditions (v dd @ 3.3v .3v) value symbol parameter condition min typ max unit v dd supply voltage 3.0 3.3 3.6 v v ih input high voltage 2.0 - - v v il input low voltage - - 0.8 v v+ * input high voltage schmitt - 1.8 2.3 v v- * input low voltage schmitt 0.5 0.9 - v v h * hysteresis voltage schmitt 0.4 - - v i ih input high current v in = v dd -10 - 10 m a i il input low current v in = v ss -10 - 10 m a v oh output high voltage 2.4 - - v v ol output low voltage - - 0.4 v v oh =v ss -10 - 10 m a i oz 3-state leakage current v ol =v dd -10 - -10 m a *for reset pin ( nnreset, pin 66) march2000 copyright 2000 kawasaki lsi printed in u.s.a kawasaki lsi assumes no responsibility or liability for (1) any errors or inaccuracies contained in the information herein and (2) the use of the information or a portion thereof in any application, including any claim for (a) copyright or patent infringement or (b) direct, indirect, special or consequential damages. there are no warranties extended or granted by this document. the information herein is subject to change without notice form kawasaki lsi
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