鍵盤(pán)針腳定義圖
PS2鍵盤(pán)接口引腳定義圖
PS/2 鍵盤(pán)接口為 6 針母插，外觀為：
|
引腳定義 |
|
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 |
鍵盤(pán)接口引腳定義圖
鍵盤(pán)接口為 5 針母插座：
|
引腳定義 |
PC/AT 鍵盤(pán)接口的引腳定義：
|
Pin |
Name |
Description |
Technical |
|---|---|---|---|
|
1 |
CLOCK |
Clock |
CLK/CTS, Open-collector |
|
2 |
DATA |
Data |
RxD/TxD/RTS, Open-collector |
|
3 |
n/c |
Not connected |
Reset on some very old keyboards. |
|
4 |
GND |
Ground |
|
|
5 |
VCC |
+5 VDC |
PC/XT 鍵盤(pán)接口的引腳定義稍有不同：
|
Pin |
Name |
Description |
Technical |
|---|---|---|---|
|
1 |
CLOCK |
Clock |
CLK/CTS, Open-collector |
|
2 |
DATA |
Data |
RxD/TxD/RTS, Open-collector |
|
3 |
Reset |
Reset |
|
|
4 |
GND |
Ground |
|
|
5 |
VCC |
+5 VDC |