基于ATM8051的PLC TM卡开发系统汇编程序

;***************** 定义管脚*************************

SCL BIT P1.0

SDA BIT P1.1

GC BIT P1.2

BZ BIT P3.6

LEDI BIT P1.4

LEDII BIT P1.5

OK BIT 20H.1

OUT1 BIT P1.3

OUT2 BIT P1.0

OUT3 BIT P1.1

RXD BIT P3.0

TXD BIT P3.1

PCV BIT P3.2

WPC BIT P3.3

RPC BIT P3.5

LEDR BIT P3.4

LEDL BIT P3.6

TM BIT P3.7

;********************定义寄存器***********************