PS/2 键盘接口定义

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PS/2 键盘接口为 6 针母插，外观为：
6 PIN MINI-DIN FEMALE

引脚定义

　

Pin Name Dir Description
1 DATA <-> Key Data
2 n/c - Not connected
3 GND --- Gnd
4 VCC --> Power , +5 VDC
5 CLK --> Clock
6 n/c - Not connected