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VGA-TV 4000

WILLOW PERIPHERALS

VGA-TV 4000

Category

Video

Video Types Supported

XVGA

Video Processor

ET4000

Highest Resolution Supported

1280 x 1024

Data Bus Type

16-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

1024KB

CONNECTIONS

Purpose

Location

Purpose

Location

Composite video port

J1

15-pin analog video connector

J3

4-pin mini DIN jack

J2

   

BOOT UP MODE SELECTION

Setting

Mode

SW1/5

SW1/6

NTSC mode

Underscan

Off

On

 

VGA mode

Overscan

On

Off

Note: SW1/5 must be in the Off position for SW1/6 to function.

VIDEO CARD CONFIGURATION

Setting

Select

SW1/7

SW1/8

Enabled

Master

On

Off

 

Disabled

Slave

Off

On

Note: SW1/8 must be in the Off position if SW1/7 is On and SW1/8 must be On if SW1/7 is Off. If both switches have the same setting the operation is undefined.

I/O BASE ADDRESS SELECTION

Address

SW1/4

310h

Off

 

300h

On

MULTIPLE CARD I/O BASE ADDRESS CONFIGURATION

ID

Address

SW1/1

SW1/2

SW1/3

2

3X4h - 3X5h

On

Off

On

 

0

3X0h - 3X1h

On

On

On

 

1

3X2h - 3X3h

Off

On

On

 

3

3X6h - 3X7h

Off

Off

On

 

4

3X8h - 3X9h

On

On

Off

 

5

3XAh - 3XBh

Off

On

Off

 

6

3XCh - 3XDh

On

Off

Off

 

7

3XEh - 3XFh

Off

Off

Off

Note: X=0 or 1.

VSYNC CONFIGURATION

Setting

JP8

Output always present

Pins 2 & 3 closed

 

Output present only in VGA mode

Pins 1 & 2 closed

FACTORY CONFIGURED - DO NOT ALTER

Jumper

Position

JP5

Open

JP6

Open

JP7

Open

JP10

Pins 1 & 2 closed