reg552.inc

I2C总线模拟方式,位方式,字节方式的asm和C代码

;-------------------------------------------------------------------------------
; Copyright 1995-1996 KEIL Software, Inc.
; 80552 Processor Declarations
;-------------------------------------------------------------------------------

S1CON     DATA     0D8H
S1STA     DATA     0D9H
S1DAT     DATA     0DAH
S1ADR     DATA     0DBH

;/*  S1CON   */
CR0       BIT     0D8H
CR1       BIT     0D9H
AA        BIT     0DAH
SI        BIT     0DBH
STO       BIT     0DCH
STA       BIT     0DDH
ENS1      BIT     0DEH

ES1       BIT     0ADH