关于串行接口键盘控制芯片8042的研究与接口设计

Research on Chip 8042 Controlled by Serial Interface Keyboard and Interface Design

8042键盘接口芯片是一种普遍用于PC机上管理和控制键盘与主机通信的接口控制器。本文介绍该控制器的特点、管脚说明和使用方法,并给出了以串行接口方式相对应的接口电路简单的设计方法。

The 8042 keyboard interface chip which is commonly used in PC and manages and controls keyboard with host communication is an interface controller. This paper introduced this controller＇s features, instructions of base pin and using method, and provided the simple design method of interface circuit which corresponds to the way of serial interface.