INFORMTECH INTERNATIONAL, INC.

IT-VGACL VER. 1.0

Category                    Video
Video Types Supported       VGA
Video Processor             Cirrus Logic, Inc.
Highest Resolution          1280 x 1024
Supported
Data Bus Type               VESA local bus
Memory Type                 VRAM
Maximum Onboard Memory      2MB

[Image]

                                CONNECTIONS

       Purpose           Location           Purpose           Location

  15-pin analog             CN1        Terminating               R26
  video port                           resistor

  Terminating               R25
  resistor

                             INTERRUPT REQUEST

                  IRQ9                                 JP11

  »               Disabled                             Open

                   Enabled                            Closed

                                   BS16

                  BS16                                 JP12

  »                Enabled                            Closed

                  Disabled                             Open

                                    OEL

                   OEL                                 JP13

  »                Enabled                            Closed

                  Disabled                             Open

                                    OEH

                   OEH                                 JP14

  »                Enabled                            Closed

                  Disabled                             Open

                                CLOCK SPEED

           Setting                    JP15                   JP16

  »          50.11MHz                 Open                   Open

             37.58MHz                Closed                 Closed

             42.16MHz                Closed                  Open

             44.74MHz                 Open                  Closed

                        VIDEO MEMORY CONFIGURATION

         Size                   Bank 0                    Bank 1

  »         1MB            (8) 256K x 4 VRAM               NONE

            2MB            (8) 256K x 4 VRAM         (2) 512K x 8 VRAM

  Note:If terminating resistors R25 and R26 are oriented horizontally,
  then the 512K x 8 VRAM chips are Bank 0.

                       MISCELLANEOUS TECHNICAL NOTES

  Some cards may have a zero-wait state jumper installed. The Pins-Closed
                configuration enables the zero-wait state.