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The SVGA [Super VGA] video interface offers more colors and
resolutions then the VGA [Video Graphics Array] interface it
replaced, but really does not exist as a single standard. The primary
standard refers to the BIOS, and how the computer talks to the monitor. The SVGA standard was released in 1990, replacing the VGA standard. The SVGA screen resolution is 800 x 600 pixels at a bandwidth of 45MHz |
| Pin # | Pin Name | Pin Description |
|---|---|---|
| 1 | RED Video | Red Video |
| 2 | GREEN Video | Green Video |
| 3 | BLUE Video | Blue Video |
| 4 | NA [ID2] | Reserved [Monitor ID, Bit #2] |
| 5 | GND | Ground |
| 6 | RGND | Red Ground |
| 7 | GGND | Green Ground |
| 8 | BGND | Blue Ground |
| 9 | Key | No pin installed |
| 10 | SGND | Sync Ground |
| 11 | ID0 | Monitor ID Bit #0 |
| 12 | SDA [ID1] | DDC data Line [Monitor ID Bit #1] |
| 13 | HSYNC | Horizontal Sync |
| 14 | VSYNC | Vertical Sync |
| 15 | SCL [ID3] | DDC Data Clock Line [Monitor ID Bit #3] |
The SVGA [Super Video Graphics Array]: Interface bus uses a 15-pin D-sub connector. The table above provides the pinouts and signal names for the connector. A 15-pin SVGA cable is not the same pinout as a 15-pin VGA cable; however, VGA may also be found with a 9-pin D connector. The pinout and signal names for both a 9 pin and 15 D-sub connector is listed on the VGA Bus page. The items in brackets are older signal designations. A listing on OEM D-sub connector manufacturers may be found on this Page Some other video standards are listed below for reference. The main page listing many of the Personal Computer Video Buses is listed here.
MDA [Monochrome Display Adapter]: established by IBM as part of
the original Personal Computer [PC]. MDA is a monochrome-only, text-only
standard, allowing text display at 80x25 characters. OBSOLETE.
CGA [Color Graphics Adapter]: The CGA standard [1981] supports
several different modes; the highest quality text mode is 80x25
characters in 16 colors. The monitors are digital with a composite signal
which is at TTL logic levels; Hs, Vs, and RGBI all at TTL logic levels.
OBSOLETE.
DVI
[Digital Visual Interface]: DVI interfaces are currently in full
production and can handle digital or analog signals.
EGA [Enhanced Graphics
Adapter]: This EGA standard [1984] offered improved resolutions and
more colors than CGA. EGA allowed graphical output up to 16 colors
(chosen from a palette of 64) at screen resolutions of 640x350, or 80x25
text with 16 colors, all at a refresh rate of 60 Hz. The monitors have a
digital interface. OBSOLETE.
VGA [Video Graphics Array]: VGA
[1987] is a superset of EGA, incorporating all EGA modes. Older displays
sent digital signals to the monitor, while VGA (and later) send analog
signals. This change was necessary to allow for more color
precision.
XGA [Extended Graphics Array]: IBM
introduced [1990] the XGA interface as a successor to its 8514/A
display.
FPDI [Flat Panel Display
Interface] describes the electrical, logical, and connector interface
between flat panel displays and display controllers in an integrated
environment.
VMChannel [VESA Media
Channel] describes a hardware interface for desktop multimedia
systems. The VMChannel is a multiple master, multiple drop, clock
synchronous interface designed for concurrent pixel data streams.
VMChannel enables the real time flow of uncompressed multimedia pixels in
a bidirectional fashion between multiple video adapters.
Back to the main PC Video Monitor Bus page, or to the main PC Interface Bus page. Use the Buses icon at the bottom of the page to reach the top level index for all bus types. Use the Equipment icon at the bottom of the page to reach manufacturers of PC Monitors.
Engineering Design Key words: SVGA bus, Super Video Graphics Array, Video Interfaces, VGA; Video Graphics Array, EGA; Enhanced Graphics Adapter, Pinouts, Connector, Signal Names, Computer Bus, Personal Computer, PCAT, Monitor, Display, Physical Interface, Dsub connector, VESA Standard
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