ps键盘驱动程序2 实现pc机键盘（p/s2接口）与8位单片机连接使用原理：键盘时钟接在p3.2口，既8051的外部中断int0上，键盘数据接到p1.0上-ps Keyboard Driver 2 pc for achieving keyboard (p/s2 Interface) with 8-bit MCU connecting Principle : keyboard clock in p3.2 I received both the 8051 int0 external interrupt, keyboard data received on p1.0