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MITSUBISHI MICROCOMPUTERS, /MSM80C49·XXXP/MSM80C39P-6SINGLE-CHIP I-BIT CMOS MICROCOMPUTERDESCRIPTIONThe M5M80C49-XXXP and M5M80C39P-6 are 8-bit parallelmicrocomputer fabricated on a single chip using silicongate CMOS technology.FEATURES• Single 5V power supply• Instruction cycle ..................... 2.5~s (min)• Basic machine instructions .................... 971-byte instructions ..... . . . . . . . . . . . . . . . . . .. 692-byte instructions . . . . . . . . . . . . . . . . . . . . . . .. 28• Direct addressing' ............... up to 4096 bytes• Internal ROM (except M5M80C39P-6) ..... 2048 bytes• Internal RAM ............... " ..... 128 bytes• Built-in timer/event counter ................. 8 bits• I/O ports ............ . . . . . . . . . . . . . . . . .. 27 lines• Easily expandable memory and I/O• Subroutine nesting ...................... 81evels• External and time/event counter interrupt,"1 level each• High noise margin• Low power dissipation modes (Vcc = 5V)Operating. . . . . . . . . . . . . . . . . . . . . . . . . .. 50mWHALT mode ......................... 15mWStand-by ............................ 50~WAPPLICATIONControl processor for a wide variety of applicationsPIN CONFIGURATION (TOP VIEW)RESET INPUTAESET-+ •SINGLE-STEP INPUTSS ... 5REQ0~~f~~~0::: INT -+ ~EXTERNAL ACCESS EA -+ 7READ AD +- 8PRO·GRAM --­STORE ENABLE PSEN +- 9WRITE WA +- '0ADDRESSE~~1I~ ALE +- 11DATA BUS( 0 V) VssVee (5V)39 +- Tl TEST PIN 138 *P237 * 7 }P2 6I/O PORT 236 *P2s35 *P24I/O PORT 127 * P1 0Z6 +- STBY STANDBYzs .... PAOG~/3TERNALZ' *-...,_____--11- 2 .. ' * P 2 0Outline 40P4P2 3} CONTROLOUTPUTZ3 * P2z I/O PORT 212 "P21FUNCTIONThe M5M80C49-XXXP and M5M80C39P-6 are integrated8-bit CPU, with memory (ROM, RAM) and timer/eventcounter interrupt all contained on a single chip.BLOCKDIAGRAM1--RO REGISTER 0Rl REGISTER 1R2 REGISTER 2 0R3 REGISTER 3 :>