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MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 1 2004/8 ver. 1.1 1. general description this eprom - based 8 - bit micro - controller uses a fully static cmos technology process to achieve higher speed and smaller size with the low power consump - tion and high noise immunity. on chip memory inclu - des 1k words of rom, and 72 b ytes of static ram. 2. features the followings are some of the features on the hardware and software : u fully cmos static design u 8 - bit data bus u on chip eprom size : 1k words u internal ram size : 72 bytes u 36 single word instructions u 14 - bit instructions u 2 - le vel stacks u operating voltage : 2.5 v ~ 5.5 v u operating frequency : 0 ~ 20 mhz u the most fast execution time is 200 ns under 20 mhz in all single cycle instructions except the branch instruction u addressing modes include direct, indirect and relative addressi ng modes u power - on reset u power edge - detector reset u sleep mode for power saving u 5 types of oscillator can be selected by programming option: intrc ?e internal 4 mhz rc oscillator rc ?e low cost rc oscillator lfxt ?e low frequency crystal oscillator xtal ?e standard crystal oscillator hfxt ?e high frequency crystal oscillator u 3 oscillator start - up time can be selected by programming option: 20 ms, 40 ms, 80 ms u 8 - bi t real time clock/counter(rtcc) with 8 - bit programmable prescaler u on - chip rc oscillator based watchdog timer(wdt) u wake - up from sleep on pin change 3. applications the application areas of this MDT10P55B range from appliance motor control and high speed automotive to low power remote transmitters/receivers, small instruments, chargers, toy, automobile and pc pe - ripheral ? etc.
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 2 2004/8 ver. 1.1 MDT10P55B3p/MDT10P55B3s vdd 1 14 vss pb5 2 13 pb0 pb4 3 12 pb1 /mclr 4 11 pb2 pc5/rtcc 5 10 pc0 pc4 6 9 pc1 pc3 7 8 pc2 MDT10P55B4p/MDT10P55B4s vdd 1 14 vss osc1 2 13 pb0 osc2/pb4 3 12 pb1 /mclr 4 11 pb2 pc5/rtcc 5 10 pc0 pc4 6 9 pc1 pc3 7 8 pc2 4. pin assignment MDT10P55B1p/MDT10P55B1s vdd 1 14 vss pb5 2 13 pb0 pb4 3 12 pb1 pb3 4 11 pb2 pc5/r tcc 5 10 pc0 pc4 6 9 pc1 pc3 7 8 pc2 MDT10P55B2p/MDT10P55B2s vdd 1 14 vss osc1 2 12 pb0 osc2/pb4 3 12 pb1 pb3 4 11 pb2 pc5/rtcc 5 10 pc0 pc4 6 9 pc1 pc3 7 8 pc2 5. pin function description pin name i/o function description p b5~0 i/o port b, ttl input level ?a pb3 input only. pc4~0 i/o port c, ttl input level pc5/rtcc i/o real time clock/counter, schmitt trigger input levels /mclr i master clear, schmitt trigger input levels osc1 i oscillator input osc2 o oscillator output v dd power supply v ss ground
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 3 2004/8 ver. 1.1 6. memory map (a) register map address description 00 indirect addressing register 01 rtcc 02 pc 03 status 04 msr 06 port b 07 port c 08~1f 30~3f 50~5f 70~7f general purpose registers (1) iar ( indirect address register) : r0 (2) rtcc (real time counter/counter register) : r1 (3) pc (program counter) : r2 write pc, call --- always 0 jump --- from instruction word rtiw, ret --- from stack a9 a8 a7~a0 write pc, jump, call --- from status b5 rtiw, ret --- from stack write pc --- from alu jump, call --- from instruction word rtiw, ret --- from stack
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 4 2004/8 ver. 1.1 (4) status (status register) : r3 bit symbol function 0 1 2 3 4 5 6 7 c hc z pf tf page ?x?x pc wuf carry bit half carry bit zero bit power down bit wdt timer overflow flag bit rom page select bit unimplemented pin change wake up from sleep (5) msr (memory bank select register) : r4 b7 b6 b5 b4 b3 b2 b1 b0 read only ?1? bank sel ect indirect addressing mode (6) port b : r6 pb5~pb0, i/o register ?a pb3 input only. (7) port c: r7 pc5~pc0, i/o register (8) tmr (time mode register) bit symbol function prescaler value rtcc rate wdt rate 2 ?x 0 ps2 ?x 0 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 1 : 2 1 : 4 1 : 8 1 : 16 1 : 32 1 : 64 1 : 128 1 : 256 1 : 1 1 : 2 1 : 4 1 : 8 1 : 16 1 : 32 1 : 64 1 : 128 3 psc prescaler assignment bit : 0 ?x rtcc 1 ?x watchdog timer
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 5 2004/8 ver. 1.1 bit symbol function 4 tce rtcc signal edge : 0 ?x increm ent on low - to - high transition on rtcc pin 1 ?x increment on high - to - low transition on rtcc pin 5 tcs rtcc signal set : 0 ?x internal instruction cycle clock 1 ?x transition on rtcc pin 6 pbphb portb pull - high :(rb0,rb1,rb3,rb4) 0 ?x enable 1 ?x disable 7 pbwub portb wake - up : (rb0,rb1,rb3,rb4) 0 ?x enable 1 ?x disable (9) cpio b ?a cpio c (control port i/o mode register) the cpio register is ?write - only? ? ?0?, i/o pin in output mode; ? ?1?, i/o pin in input mode. (10) configurable options fo r eprom (set by writer) : oscillator type oscillator start - up time intrc oscillator 20ms,40ms,80ms rc oscillator 20ms,40ms,80ms hfxt oscillator 20 ms,40ms,80ms xtal oscillator 20ms,40 ms,80ms lfxt oscillator 20ms,40 ms,80 ms watchdog timer c ontrol watchdog timer disable all the time watchdog timer enable all the time security state security weak disable security disable security enable the default security state of eprom is weak disable. once the ic was set to enable or disable, it?s forbidden to change.
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 6 2004/8 ver. 1.1 (b) program memory address description 000 - 3ff program memory 000 the starting address of power on, external reset or wdt time - out reset. 8. reset condition for all registers register address power - on reset /mclr reset wdt res et cpio b ?e?e -- 11 1111 -- 111 1111 -- 11 1111 cpio c ?e?e -- 11 1111 -- 11 1111 -- 11 1111 tmr ?e?e 1111 1111 1111 1111 -- 11 1111 iar 00h xxxx xxxx uuuu uuuu uuuu uuuu rtcc 01h xxxx xxxx uuuu uuuu uuuu uuuu pc 02h 0000 0000 0000 0000 0000 0000 status 03h 0001 1xxx #00# #uuu #00# #uuu msr 04h 110x xxxx 11uu uuuu 11uu uuuu port b 06h -- xx xxxx -- uu uuuu -- uu uuuu port c 07h -- xx xxxx -- uu uuuu -- uu uuuu note : u ? unchanged, x ? unknown, - ? unimplemented, read as ?0? # ? value depends on the cond ition of the following table condition status: bit 7 status: bit 4 status: bit 3 /mclr reset (not during sleep) 0 u u /mclr reset during sleep 0 1 0 wdt reset (not during sleep) 0 0 1 wdt reset during sleep 0 0 0 wake - up from sleep on pin change 1 1 0 9. instruction set : instruction code mnemonic operands function operating status 010000 00000000 nop no operation none 010000 00000001 clrwt clear watchdog timer 0 ? wt tf, pf 010000 00000010 sleep sleep mode 0 ? wt, stop osc tf, pf 010000 00000011 tmode load w to tmode register w ? tmode none 010000 00000100 ret return stack ? pc none
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 7 2004/8 ver. 1.1 instruction code mnemonic operands function operating status 010000 00000rrr cpio r control i/o port register w ? cpio r none 010001 1rrrrrrr stwr r store w to register w ? r none 011000 trrrrrrr ldr r, t load register r ? t z 111010 iiiiiiii ldwi i load immediate to w i ? w none 010111 trrrrrrr swapr r, t swap halves register [r(0~3) ? r(4~7)] ? t none 011001 trrrrrrr incr r, t increment register r + 1 ? t z 011010 trrrrrrr incrsz r, t increment register, skip if zero r + 1 ? t none 011011 trrrrrrr addwr r, t add w and register w + r ? t c, hc, z 011100 trrrrrrr subwr r, t subtract w from register r ?? w ? t or (r+/w+1 ? t) c, hc, z 011101 trrrrrrr decr r, t decrement register r ?? 1 ? t z 011110 trrrrrrr decrsz r, t decrement register, skip if zero r ?? 1 ? t none 010010 trrrrrrr andwr r, t and w and register r ?? w ? t z 110100 iiiiiiii andwi i and w and immediate i ?? w ? w z 010011 trrrrrrr iorwr r, t inclu. or w and register r ?? w ? t z 110101 iiiiiiii iorwi i inclu. or w and immediate i ?? w ? w z 010100 trrrrrrr xorwr r, t exclu. or w and register r ? w ? t z 110110 iiiiiiii xorwi i exclu. or w and immediate i ? w ? w z 011111 trrrrrr r comr r, t complement register /r ? t z 010110 trrrrrrr rrr r, t rotate right register r(n) ? r(n - 1), c ? r(7), r(0) ? c c 010101 trrrrrrr rlr r, t rotate left register r(n) ? r(n+1), c ? r(0), r(7) ? c c 010000 1xxxxxxx clrw clear working register 0 ? w z 010001 0rrrrrrr clrr r clear register 0 ? r z 0000bb brrrrrrr bcr r, b bit clear 0 ? r(b) none 0010bb brrrrrrr bsr r, b bit set 1 ? r(b) none 0001bb brrrrrrr btsc r, b bit test, skip if clear skip if r(b)=0 none 0011bb brrrrrrr btss r, b bi t test, skip if set skip if r(b)=1 none 1000nn nnnnnnnn lcall n long call subroutine n ? pc, pc+1 ? stack none 1010nn nnnnnnnn ljump n long jump to address n ? pc none 110000 nnnnnnnn call n call subroutine n ? pc, pc+1 ? stack none 110001 iiiiiii i rtiw i return, place immediate to w stack ? pc,i ? w none 11001n nnnnnnnn jump n jump to address n ? pc none note :
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 8 2004/8 ver. 1.1 w : working register b : bit position wt : watchdog timer t : target tmode : tmode mode register 0 : working register cpi o : control i/o port register 1 : general register tf : timer overflow flag r : general register address pf : power loss flag c : carry flag pc : program counter hc : half carry osc : oscillator z : zero flag inclu. : inclusive ? ?? ? / : complement exclu. : exclusive ? ? ? x : don?t care and : logic and ? ?? ? i : immediate data ( 8 bits ) n : immediate address 10. oscillator start up timer condition : oscillator type porwer - on reset subsequest resets intrc,rc 20ms,40ms,80ms 300us hf,xt,lf 2 0ms,40ms,80ms 20ms,40ms,80ms 11. electrical characteristics *note: temperature=25c 1.operation current : (1) hf (c=10p) , wdt - enable 4m 10m 20m sleep 2.5v 250ua 600ua 1.2ma 3.0ua 3.0v 325ua 740ua 1.4ma 8ua 4.0v 400ua 820ua 1.8ma 16ua 5.0v 622ua 1ma 2ma 30ua 6.4v 1ma 1.6ma 2.9ma 42.5ua these parameters are for reference only. (2) xt (c=10p) , wdt - enable 1m 4m 10m sleep 2.5v 100ua 280ua 500ua 1.0ua 3.0v 185ua 250ua 460ua 10ua 4.0v 280ua 340ua 700ua 15ua 5.0v 400ua 600ua 1ma 30ua 6.4v 900ua 980ua 1.6ma 60ua these parameters are for reference only.
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 9 2004/8 ver. 1.1 (3) rc , wdt ? enable , @vdd = 5.0v c r freq. current 4.7k 8.2m 1ma 10k 4.2m 630ua 47k 968k 180ua 100k 464k 130ua 300k 156k 114ua 3p 470k 100k 110ua 4.7k 4.9m 630ua 10k 2 .5m 360ua 47k 540k 156ua 100k 260k 128ua 300k 84k 112ua 20p 470k 56k 100ua 4.7k 1.76m 300ua 10k 860k 200ua 47k 190k 120ua 100k 90.8k 113ua 300k 30k 97ua 100p 470k 18.8k 97ua 4.7k 776k 170ua 10k 376k 133ua 47k 82k 106ua 100k 39.2k 102ua 300k 12.8k 91ua 300p 470k 8k 85ua these parameters are for reference only. (4) lf (c=10p) , wdt - disable 32k 455k 1m sleep 2.5v 30ua x x 1.0ua 3.0v 60ua @3.2v,300ua @3.2v,300ua 1.0ua 4.0v 150ua 450ua 450ua 1.0ua 5.0v 300ua 750ua 750ua 1.0ua 6.4v 750ua 1.2ma 1.2ma 1.0ua these parameters are for reference only.
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 10 2004/8 ver. 1.1 2. input voltage (vdd = 5v) : port min max ttl vss 1.5v vil schmitt trigger vss 1.25v ttl 2v vdd vih schmitt trigger 3v vdd these parameters are for reference only. 3. outp ut voltage (vdd = 5v) : pa,pb condition voh 3.8v ioh = - 20ma vol 0.8v iol =+20ma voh 4.3v ioh = - 5ma vol 0.6v iol = +5ma these parameters are for reference only. 4. output current (max.) (vdd = 5v) : port b: current source current 25ma sink curr ent 25ma these parameters are for reference only. port c: current source current 25ma sink current 25ma these parameters are for reference only. 5. the basic wdt time - out cycle time : time 2.5v 25ms 3.0v 23ms 4.0v 20ms 5.0v 19ms 6.3v 18ms t hese parameters are for reference only.
MDT10P55B this specification are subject to be changed wit hout notice. any latest information please preview http;//www.mdtic.com.tw p. 11 2004/8 ver. 1.1 6. ( 1 )int_rc,wdt ? disable ic1: 4m sleep 3.0v 500ua 1.0ua 4.0v 800a 1.0ua 5.0v 1ma 1.0ua these parameters are for reference only. (2)int_rc,wdt ? enable ic1: 4m sleep 3.0v 600ua 5ua 4.0v 1ma 15u a 5.0v 1.2ma 30ua these parameters are for reference only. 7. min operation voltage : c => 10p 20p 30p xt, 20m 2.5v 2.7v 3v hf, 20m 2.5v 2.7v 3v these parameters are for reference only. rc, 1k, no cap. 2.2v these parameters are for reference only. c => 0p 10p 20p lf, 1m 2.8v 3.2v 3.4v these parameters are for reference only. 8. mclr filter time : vdd=5v time 1000ns these parameters are for reference only.

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