PS/2 键盘接口为 6 针母插，外观为：
|
PS/2键盘接口引脚定义 |
|
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 |