VGA Vesa DDC顯示接口
VGA 是 Video Graphics Adapter(Array) 的縮寫(xiě)，VESA 是 Video Electronics Standards Association 的縮寫(xiě)，DDC 是 Display Data Channel 的縮寫(xiě)，信號(hào)類型為模擬類型，顯示卡端的接口為 15 針母插座：
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|
Pin |
Name |
Description |
Pin |
Name |
Description |
|
1 |
RED |
Red Video (75 ohm, 0.7 V p-p) |
9 |
+5V |
+5 VDC |
|
2 |
GREEN |
Green Video (75 ohm, 0.7 V p-p) |
10 |
SGND |
Sync Ground |
|
3 |
BLUE |
Blue Video (75 ohm, 0.7 V p-p) |
11 |
ID0 |
Monitor ID Bit 0 |
|
4 |
RES |
Reserved |
12 |
SDA |
DDC Serial Data Line |
|
5 |
GND |
Ground |
13 |
HSYNC or CSYNC |
Horizontal Sync (or Composite Sync) |
|
6 |
RGND |
Red Ground |
14 |
VSYNC |
Vertical Sync |
|
7 |
GGND |
Green Ground |
15 |
SCL |
DDC Data Clock Line |
|
8 |
BGND |
Blue Ground |
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