摘要
介绍内置HD6 12 0 2点阵式液晶显示模块与 80 31的并行扩展I/O接口芯片 82 5 5A的接口设计及 82 5 5A的PC口单一置复位控制。同时 ,给出了LCD正常工作的基本条件以及相关的程序。
This paper introduced the interface design of dot-matrix LCD module based on inter HD61202 controller and 8031′s parallel expanding chip 8255A, and gave the single set-reset control of PC port on 8255A. The fundamental conditions of LCD normal operating, relative program and programming process diagram were presented.
出处
《液晶与显示》
CAS
CSCD
2004年第2期138-142,共5页
Chinese Journal of Liquid Crystals and Displays