VIDEOLOGIC, INC. DVA-4000 ISA 16 BIT
25,00 €
TTC
VIDEOLOGIC, INC. DVA-4000 ISA 16 BIT
The VideoLogic DVA-4000 allowed you to display full-motion video or still frames overlayed onto standard PC graphics. It was available in ISA and MCA variants. It consisted of three cards:
- The VideoLogic MediaSpace, a full-length ISA card. This can take a video signal in several different formats (S-VHS, VGA, etc.) and compress it into an MJPEG video stream. The encoding was performed by a CL550 JPEG chip under the control of an Inmos T400 Transputer chip. This card was capable of encoding video a quarter the resolution of the screen at 25 frames per second.
- The VideoLogic DVA-4000 motion video board, a full-length ISA card. This is capable of capturing 24-bit-per-pixel images from either the two external VGA inputs, the internal VGA feature connector, or from the MediaSpace card via a custom bus.
- The VideoLogic video card. This was a standard VESA local bus video card that connected to the DVA-4000 through the feature connector.
|
Category |
Video |
|
Video Types Supported |
XVGA |
|
Video Processor |
Unidentified |
|
Highest Resolution Supported |
640 x 480 |
|
Data Bus Type |
16-bit ISA |
|
Memory Type |
Unidentified |
|
Maximum Onboard Memory |
Unidentified |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
15-pin analog video port |
CN1 |
16-pin aux video connector |
CN4 |
|
VGA feature connector |
CN2 |
4-pin audio in connector |
CN8 |
|
15-pin analog display port |
CN3 |
|
|
|
BASE ADDRESS SELECTION |
|||
|
Address |
JP3 |
JP4 |
|
|
» |
308h |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
|
318h |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
|
328h |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
|
338h |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
INTERRUPT SELECTION |
|||||||
|
IRQ |
JP2/A |
JP2/B |
JP2/C |
JP2/D |
JP2/E |
JP2/F |
|
|
» |
7 |
Open |
Open |
Closed |
Open |
Open |
Open |
|
|
2/9 |
Open |
Open |
Open |
Closed |
Open |
Open |
|
|
3 |
Closed |
Open |
Open |
Open |
Open |
Open |
|
|
5 |
Open |
Closed |
Open |
Open |
Open |
Open |
|
|
10 |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
15 |
Open |
Open |
Open |
Open |
Open |
Open |
|
6 OR 8-BIT PALETTE SELECTION |
||
|
Setting |
JP5 |
|
|
» |
6-bit |
Pins 2 & 3 closed |
|
|
8-bit |
Pins 1 & 2 closed |
|
AUDIO 3 INPUT GAIN SELECTION |
|||
|
Setting |
JP6 |
JP7 |
|
|
» |
Off |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
|
Quit (gain low) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
|
Normal (audio 3 input) |
Pins 1 & 2 closed |
Pins 3 & 4 closed |
|
|
Loud (gain high) |
Pins 2 & 3 closed |
Pins 3 & 4 closed |
|
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