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MGA ULTIMA/IMPRESSION

MATROX GRAPHICS, INC.

MGA ULTIMA/IMPRESSION

Category

Video

Video Types Supported

XVGA

Video Processor

MGA

Highest Resolution Supported

1600 X 1200

Data Bus Type

16-bit ISA, (32-bit VESA Local Bus, MCA on Impression only)

Memory Type

VRAM

Maximum Onboard Memory

3072KB (MGA Ultima can only support 2048KB)

CONNECTIONS

Purpose

Location

Purpose

Location

15-pin analog video port

CN1

VGA feature connector

CN3

Mouse/LaserPro port

CN2

VideoPro connector

CN4

Note: The LaserPro port allows you to connect a LaserPro printer accelerator card. The VideoPro module is only available on the MGA Impression

BASE MEMORY ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

AC000h - AFFFFh

Off

On

On

 

C8000h - CBFFFh

On

Off

On

 

CC000h - CFFFFh

Off

Off

On

 

D0000h - D3FFFh

On

On

Off

 

D4000h - D7FFFh

Off

On

Off

 

D8000h - DBFFFh

On

Off

Off

 

DC000h - DFFFFh

Off

Off

Off

Note: VL-versions of the MGA cannot be installed at the AC000h memory address.

VGA CONFIGURATION

VGA

SW1/4

Enabled

Off

 

Disabled

On

BOOT MODE SELECTION

Mode

SW1/5

8-bit boot

On

 

16-bit boot

Off

SYNC TYPE SELECTION

Type

SW1/6

Separate Sync

On

 

Composite Sync

Off

DMA CHANNEL SELECTION

DMA

SW1/7

SW1/8

SW1/9

SW1/10

Disabled

Off

Off

Off

Off

 

7

Off

Off

On

On

 

6

On

On

Off

Off

Note: Switches 7 - 10 are only found on the MGA Impression.