单片机通用键盘显示电路的设计

THE DESIGN OF COMMON KEYBOARD & DISPLAY CIRCUIT OF SINGLE CHIP MICROCOMPUTER

本文介绍一种可编程键盘显示器专用接。芯片8279与Inte18098单片机接口的硬件、软件设计方法。该接口电路可作为通用键盘显示电路，即可以与除8098以外的单片机接口。该电路大大节省了CPU开销时间，提高了的可靠性及CPU的工作效率，具有广泛的应作价值。

This paper introduces a kind of hardware and software design method about the interface for programable keyboard and display special interface chip 8279 and Intel 8098 Singal Chip Microcomputer. This interface circuit can be used general keyboard and display circuit,inorher words,it can be in terfaced by other singal chip Microcomputer besides 8098. This circuit shortens the worktime of CPU greatly,and promots the reliability of the system and the efficiency of CPU. Therefor,if has widespread applied value.