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简要介绍了美国DALLAS公司的新型时钟日历芯片DS12C887的功能特性和内部控制寄存器参数 ,给出了DS12C887与8031单片机的电路连接图 ,同时给出了用C51编写的初始化程序和获取内部时间的程序
Briefly introduces the function characteristic and internal control register parameter of DALLAS company’s new clock calendar chip DS12C887, gives the circuit connection diagram of DS12C887 and 8031 singlechip, at the same time gives the initialization program written in C51 and the program for obtaining internal time