Signal description




Дата канвертавання26.04.2016
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VGA/SVGA/XGA Connector Pin-Out

PIN#

SIGNAL DESCRIPTION

1

Red (analog)

2

Green (analog)

3

Blue (analog)

4

Monitor ID Bit2

5

Ground (digital)

6

Ground (red)

7

Ground (green)

8

Ground (blue)

9

not used

10

Ground (sync)

11

Monitor ID Bit0

12

Monitor ID Bit1

13

Horiz Sync

14

Vert Sync

15

not used



7.1) Video Graphics Adapter (VGA)

Note that IBM called VGA 'Video Graphics Array' probably in reference to the video memory. However, we will use the more popular terminology since it agrees with the naming conventions of the other PC standards.

Original VGA (31.5 KHz - 640x480)/SVGA (35-37 KHz - 800x600) 15 pin sub D:

6

1 Red (Analog) 6 Red Return 11 (ID0) GND (Color) 11. . . 1



2 Green (Analog) 7 Green Return 12 (ID1) NC (Color) . . .

3 Blue (Analog) 8 Blue Return 13 Horizontal Sync . . .

4 Reserved 9 No Connect 14 Vertical Sync . . .

5 Ground 10 Ground 15 No Connect . . .

15 10 5

NOTE: Monitor ID Lines ID1,ID0=NC,G for color; G,NC for Mono. ID0 only may be used.

Mono VGA is similar using only the Green Video and Return.






7.2) VGA (VESA Standard)

(From: Bob Myers (myers@fc.hp.com)).

Note that many of the pins shown above as "no connects" (actually, these were sometimes used as monitor ID bits by many manufacturers) are now defined under the VESA Display Data Channel standard. This standard provides two protocols for display ID and control, including support for the full ACCESS.bus interface. The current definition of the "VGA" pinout per the DDC standard is:

6

1 Red (Analog) 6 Red Return 11 Monitor ID0 (opt.) 11. . . 1



2 Green (Analog) 7 Green Return 12 Data (SDA) . . .

3 Blue (Analog) 8 Blue Return 13 Horizontal Sync . . .

4 Reserved 9 +5 VDC (frm host)* 14 Vertical Sync . . .

5 Return 10 Sync return 15 Data clock (SCL)* . . .



15 10 5

Those signals marked with an asterisk would be supplied by the host only if the host supports the DDC2 protocol (I2C or ACCESS.bus).


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