TVGA 8902/8-DRAM video card Settings and Configuration

Card Type

Video Card

Video Chip Set

Unidentified

Maximum Video Memory

1MB DRAM

Video Types Supported

VGA

Highest Resolution Supported

1024 x 768

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

Function

Label

15-pin analog video port

CN1

9-pin TTL Port

CN3

Feature connector (VGA/VESA)

CN2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Unidentified

SW1/4

On

BUS SIZE DETECTION

Setting

J2

»

Autodetect

Pins 2 & 3 Closed

Standard Interface

Pins 1 & 2 Closed

Note: Orientation of J2 may vary. Check pin numbers on card.

BUS SIZE SELECTION

Setting

SW1/6

»

16-bit

Off

8-bit

On

SCAN RATE SELECTION

Rate

SW1/3

»

Less than 48Mhz

On

48-49Mhz

Off

MONITOR SELECT

Setting

SW1/1

SW1/2

VGA

On

On

EGA

Off

On

CGA

On

Off

MDA/Hercules

Off

Off

Note: SW1/1 & 2 affects 9-pin TTL connection. Not present on all cards.

INTERRUPT

IRQ 9

J1

»

Disabled

Pins 2 & 3 Closed

Enabled

Pins 1 & 2 Closed

ADDRESS DECODE

Setting

SW1/5

»

Fast address decode

Off

Slow address decode

On