HwMuseum | Index

COGENT ELECTRONICS INDUSTRIES

VIDEO WIZARD

Category

Video

Video Types Supported

XVGA

Video Processor

Unidentified

Highest Resolution Supported

1024 x 768

Data Bus Type

16-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

768KB

CONNECTIONS

Purpose

Location

Purpose

Location

VGA loopback

CN1

Audio/video 2/3 in

CN4

15-pin analog video port

CN2

Audio out

J1

Audio/video 1 in

CN3

VGA feature connector

JP8

COMPRESSION/DECOMPRESSION BASE ADDRESS

Address

JP3/A

JP3/B

»

390h

Open

Open

 

260h

Closed

Closed

 

280h

Open

Closed

 

320h

Closed

Open

PC VIDEO BASE I/O ADDRESS CONFIGURATION

Setting

JP6

»

Using I/O address 0AD6h

Pins 1 & 2 closed

 

Alternate address selection via switch S1

Pins 2 & 3 closed

BASE I/O ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

100h

On

On

On

On

On

On

On

Off

200h

On

On

On

On

On

On

Off

On

300h

On

On

On

On

On

On

Off

Off

400h

On

On

On

On

On

Off

On

On

500h

On

On

On

On

On

Off

On

Off

FB00h

Off

Off

Off

Off

Off

On

Off

Off

FC00h

Off

Off

Off

Off

Off

Off

On

On

FD00h

Off

Off

Off

Off

Off

Off

On

Off

FE00h

Off

Off

Off

Off

Off

Off

Off

On

FF00h

Off

Off

Off

Off

Off

Off

Off

Off

Note: A total of 255 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/1 is the Most Significant Bit and switch SW1/8 is the Least Significant Bit. The switches have the following decimal values: SW1/1=32768, SW1/2=16384, SW1/3=8192, SW1/4=4096, SW1/5=2048, SW1/6=1024, SW1/7=512, SW1/8=256. Turn off the switches and add the values of the switches that are off to obtain the correct memory address. (Off=1, On=0)

VIDEO DMA CHANNEL SELECTION

Channel

JP2/A

JP2/B

JP2/C

JP2/D

JPE/E

JP2/F

5

Closed

Open

Open

Closed

Open

Open

6

Open

Closed

Open

Open

Closed

Open

7

Open

Open

Closed

Open

Open

Closed

AUDIO DMA CHANNEL SELECTION

Channel

JP4/A

JP4/B

JP4/C

JP4/D

JP4/E

JP4/F

1

Closed

Open

Open

Closed

Open

Open

2

Open

Closed

Open

Open

Closed

Open

3

Open

Open

Closed

Open

Open

Closed

FRAME INTERRUPT SELECTION

IRQ

JP5/A

JP5/B

JP5/C

JP5/D

JP5/E

JP5/F

10

Closed

Open

Open

Open

Open

Open

11

Open

Closed

Open

Open

Open

Open

12

Open

Open

Closed

Open

Open

Open

FACTORY CONFIGURED - DO NOT ALTER

Jumper

Position

JP7

Pins 2 & 3 closed