实时时钟(RTC)X1203及其在单片机中的应用

The Application Study of Real Time Clock X1203 in Single-Chip System

阐述了串行接口实时时钟芯片Ｘ１２０３的基本功能，并对其通信协议中的起始、结束及通信“应答”这几个重要 方面进行详细的分析，最后给出了Ｘ１２０３在数据采集终端中的应用实例。

This article gives a general description of integrated chip Real Time Clock/Calendar--X1203, which is produced by Xicor Co.. The article shows the basic functionality of the chip, and presents several important parts of its communication protocol, especially the valid start and stop conditions, valid data changes, and the 'Acknowledge: protocol. An application is given in an AT89C51 Single-Chip system.