IMAGRAPH CORPORATION

V8 (VERSIONS A, B, C, D, & E)

Category                    Video
Video Types Supported       XVGA
Video Processor             Trident
Highest Resolution          1280 x 1024
Supported
Data Bus Type               16-bit ISA
Memory Type                 VRAM
Maximum Onboard Memory      2048KB

[Image]

                                CONNECTIONS

       Purpose         Location             Purpose            Location

  15-pin video port       J1        Daughterboard connector       P3

                       EMULATION TYPE CONFIGURATION

           Type                 Address           JP1            JP1A

  »     VGA/EGA with High     3DDh - 3DEh      Pins 1 &2       Pins 1 &2
           Resolution                           closed          closed

          CGA with High       3DDh - 3DEh      Pins 2 & 3     Pins 2 & 3
           Resolution                           closed          closed

        High resolution       3DDh - 3DEh      Pins 1 &2      Pins 2 & 3
                                                closed          closed

        High resolution       30Dh - 30Eh      Pins 2 & 3      Pins 1 &2
                                                closed          closed

            Note: Address setting 30Dh - 30Eh requires special device
            driver software for operation.

                   MONITOR CONNECTOR SENSE CONFIGURATION

           Setting                     J8                     J9

  »         Disabled           Pins 1 & 2 closed      Pins 1 & 2 closed

             Enabled           Pins 2 & 3 closed      Pins 2 & 3 closed

  Note: An optional microcode EPROM must be installed before Connector
  Sense can be enabled.

                      VGA DAUGHTERBOARD CONFIGURATION

                 Setting                                J12

  »             Not installed                    Pins 2 & 3 closed

                  Installed                      Pins 1 & 2 closed

  Note: This setting does not apply to versions B, C, D, or E.

                            BIOS SIZE SELECTION

                 Size                                  J10

  »              32K (VGA)                       Pins 1 &2 closed

                 16K (EGA)                      Pins 2 & 3 closed

  Note: This setting does not apply to version B.

                         VIDEO INTERRUPT SELECTION

                  IRQ                                   S3

  »                  10                          Pins 3 & 4 closed

                     2/9                        Pins 9 & 10 closed

                     11                          Pins 5 & 6 closed

                     12                          Pins 7 & 8 closed

                  Disabled                       Pins 1 & 2 closed

                   ALTERNATE I/O PORT ADDRESS SELECTION

               Address                                 S6

  »                3xx                         Pins 2 & 3 closed

                   1xx                          Pins 1 &2 closed

  Note: This setting does not apply to versions B or C.

                           DMA CHANNEL SELECTION

       DRQ              Dack                S5                 S8

  »        7              7             Pins 1 & 2      Pins 1 & 2 closed
                                          closed

           6              6             Pins 3 & 4      Pins 3 & 4 closed
                                          closed

           5              5             Pins 5 & 6      Pins 5 & 6 closed
                                          closed

                    STRING I/O OPERATION CONFIGURATION

                Setting                                 S14

  »               Disabled                       Pins 2 & 3 closed

                   Enabled                       Pins 1 &2 closed

       Note: This setting does not apply to version B. Microcode EPROM
       and device driver software must be installed before I/O string
       operations can be enabled.