摘要
简要介绍了Dallas公司的高精度时钟芯片DS12C887组成及内部控制寄存器参数,阐述了DS12C887的主要功能,给出了DS12C887与Intel单片机(80C196KC)接口的硬件设计原理图,测量设备将处理后的数据及时间送给LCD显示,给出了相应的汇编语言编写的时钟芯片软件初始化及中断中读取时间程序。
It simply introduced the inter composing and control register of the Dallas'DS12C887, and its' main function is explained, the theory picture of the hardware interface with the SCP, measure device send the processed data and time to LCD to display, and its corresponding initialization and reading time in interruption software that is programmed by assembly language s given.
出处
《信息技术》
2005年第2期46-48,共3页
Information Technology
