DSl2C887在单片机系统中的C51应用

The Application of Ds12C887 in SCM System

DSl2C887是Dallas公司生产的一款日历时钟芯片，专为直接取代原有几款芯片而设计，具有多种优点；但大多数编程人员都用汇编语言编写接口程序。本文结合具体系统，详细介绍DSl2C887在系统中的C51接口程序及其编程思路。

DS12C887 is a realtime clock IC made by Dallas,designed for replacing the same kind IC. It has several advantages. But most of programmers write the interface program in assemble language. Based on the the actual system ,the essay introduced the interface program in C51 and programming methods.