VGA Vesa DDC显示接口

VGA Vesa DDC显示接口

    VGA 是 Video Graphics Adapter(Array) 的缩写，VESA 是 Video Electronics Standards Association 的缩写，DDC 是 Display Data Channel 的缩写，信号类型为模拟类型，显示卡端的接口为 15 针母插座：

15 PIN HIGHDENSITY D-SUB FEMALE

显示器连线端的接口为 15 针公插头：
15 PIN HIGHDENSITY D-SUB MALE

 

引脚定义


Pin

Name

Dir

Description

1

RED

-->

Red Video (75 ohm, 0.7 V p-p)

2

GREEN

-->

Green Video (75 ohm, 0.7 V p-p)

3

BLUE

-->

Blue Video (75 ohm, 0.7 V p-p)

4

RES

-

Reserved

5

GND

---

Ground

6

RGND

---

Red Ground

7

GGND

---

Green Ground

8

BGND

---

Blue Ground

9

+5V

-->

+5 VDC

10

SGND

---

Sync Ground

11

ID0

<--

Monitor ID Bit 0 (optional)

12

SDA

<->

DDC Serial Data Line

13

HSYNC or CSYNC

-->

Horizontal Sync (or Composite Sync)

14

VSYNC

-->

Vertical Sync

15

SCL

<->

DDC Data Clock Line

posted @ 2011-04-19 10:13  katago  阅读(1429)  评论(0)    收藏  举报