
MATROX GRAPHICS, INC.

MGA ULTIMA/IMPRESSION

Category                   Video
Video Types Supported      XVGA
Video Processor            MGA
Highest Resolution         1600 X 1200
Supported
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)

[Image]

                                CONNECTIONS

        Purpose            Location          Purpose           Location

  15-pin analog video         CN1        VGA feature             CN3
  port                                   connector

  Mouse/LaserPro port         CN2        VideoPro                CN4
                                         connector

       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.

