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| 键盘接口引脚定义图 |
作者:本站 来源:本站整理 发布时间:2007-11-27 20:14:36 减小字体 增大字体 |
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键盘接口引脚定义图
键盘接口为 5 针母插座:
PC/AT 键盘接口的引脚定义:
|
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. |
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4 |
GND |
Ground |
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5 |
VCC |
+5 VDC |
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PC/XT 键盘接口的引脚定义稍有不同:
|
Pin |
Name |
Description |
Technical |
|
1 |
CLOCK |
Clock |
CLK/CTS, Open-collector |
|
2 |
DATA |
Data |
RxD/TxD/RTS, Open-collector |
|
3 |
Reset |
Reset |
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4 |
GND |
Ground |
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5 |
VCC |
+5 VDC |
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