NUMBER NINE VISUAL TECHNOLOGY

#9GXI

Category

Video

Video Types Supported

XVGA

Video Processor

TMS34020

Highest Resolution Supported

1280 X 1024

Data Bus Type

16-bit ISA

Memory Type

DRAM/VRAM

Maximum Onboard Memory

1024KB DRAM/2048KB VRAM

CONNECTIONS

Purpose

Location

Purpose

Location

15-pin analog video port

CN1

External VGA loop-through connector

CN3

15-pin analog video port

CN2

Self-test LED

LED

I/O ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

»

2A0h - 2AFh

On

Off

On

 

280h - 28Fh

On

On

On

 

290h - 29Fh

On

On

Off

 

2B0h - 2BFh

On

Off

Off

 

2C0h - 2CFh

Off

On

Off

 

2D0h - 2DFh

Off

On

Off

 

2E0h - 2EFh

Off

On

On

 

Reserved

Off

Off

Off

MONITOR TYPE CONFIGURATION

Type

SW1/5

Single monitor: #9GXi with on-board VGA

On

Single monitor #9gxi with external VGA

Off

Dual monitor: #9GXi with on-board VGA

On

Dual monitor #9gxi with external VGA

Off

VGA BIOS TRANSFER SELECTION

Setting

SW1/6

»

Access BIOS data in word mode (16-bit)

On

 

Access BIOS data in byte mode (8-bit)

Off

MONOCHROME EMULATION CONFIGURATION

Setting

SW1/7

»

Disabled

Off

 

Enabled

On

MEM16 DECODE CONFIGURATION

Setting

JM1

»

Use low and high-order address signals

Pins 2 & 3 closed

 

Use only high-order address signals

Pins 1 & 2 closed

I/O16 SIGNAL CONFIGURATION

Signal

JM2

»

Unqualified

Open

 

Qualified

Closed

FACTORY CONFIGURED - DO NOT ALTER

Switch

Position

SW1/4

On

SW1/8

On