A51 MACRO ASSEMBLER  PCF8574AB                                                            02/14/2006 12:08:12 PAGE     1


MACRO ASSEMBLER A51 V7.04a
OBJECT MODULE PLACED IN PCF8574AB.OBJ
ASSEMBLER INVOKED BY: C:\SiLabs\MCU\IDEfiles\C51\BIN\a51.exe PCF8574AB.ASM XR GEN DB EP NOMOD51

LOC  OBJ            LINE     SOURCE

                       1     
                       2     ;實驗29  程序PCF8574AB.ASM   
                       3     ;用I2C(與SUNBUS兼容)虛擬總線的方法編程.調用I2C通用子程序軟件包.
                       4     ;程序功能:PCF8574是帶SUMBUS總線的串口轉并口的示葑