一种新的矩阵式键盘结构  

An New Type of Matrix Keyboard Structure

作　　者：丁天然[1] 

机构地区：[1]济宁师范专科学校物理系,济宁272025

出　　处：《现代计算机》2003年第7期86-88,共3页Modern Computer

摘　　要：本文介绍一种用 N+1个I/O端口实现 N×N矩阵式键盘的新方法,并用该方法设计一个5×5的矩阵式键盘作为例子,给出软件编制框图并对该方法进行探讨。In this paper, a general design method was introduced which used N+1 I/O ports to realize N×N matrix keyboard. An example was given to design a 5×5 keyboard and software frame figure was also given to discuss the method in detail.

关 键 词：矩阵式键盘 接口电路 I/O端口 微机 

分 类 号：TP334.23[自动化与计算机技术—计算机系统结构]