12c887.h

利用热释红外传感器、12C887和PIC单片机制作的智能电子时钟

//////////// SUBSTITUTION DEFINITIONS  ///////////

#define CS  RC0     // chip slect
#define ALE RC1     // address or data lath
#define WR  RC2     // write enable
#define RD  RC3     // read enable
////////////   VARIABLE DEFINITIONS   ////////////
extern unsigned const char SECOND=0x00,SECOND_ALARM=0x01,MINUTE=0x02,MINUTE_ALARM=0x03,HOUR=0x04,HOUR_ALARM=0x05,DayOfWeek=0x06;
extern unsigned const char DayOfMonth=0x07,MONTH=0x08,YEAR=0x09,REGA=0x0a,REGB=0x0b,REGC=0x0c,REGD=0x0d,CENTURY=0x32;