TECHNOLOGY WORKS

AT1000

Category                    Video
Video Types Supported       XVGA
Video Processor             TMS34020, TMS34082, Tseng Labs ET4000
Highest Resolution          1024 x 768
Supported
Data Bus Type               16-bit ISA
Memory Type                 DRAM/VGA RAM/VRAM
Maximum Onboard Memory      4MB/1MB/1MB (See DRAM technical note)

[Image]

                                CONNECTIONS

       Purpose          Location            Purpose            Location

  15-pin analog            CN1        VGA feature connector       CN2
  video port

                        BASE I/O ADDRESS SELECTION

  Address     SW1/1    SW1/2   SW1/3    SW1/4    SW1/5    SW1/6    SW1/7

  »   360h     Off      Off      On      Off      Off       On       On

      300h     Off      Off      On       On       On       On       On

      308h     Off      Off      On       On       On       On      Off

      310h     Off      Off      On       On       On      Off       On

      340h     Off      Off      On      Off       On       On       On

      380h     Off      Off     Off       On       On       On       On

      3A0h     Off      Off     Off       On      Off       On       On

      3E0h     Off      Off     Off      Off      Off       On       On

                       VGA CONTROLLER CONFIGURATION

               Setting                               SW1/12

     Enable the Tseng Labs ET4000                      On

    Disable the Tseng Labs ET4000                     Off

  Note: Make sure when you enable the ET4000 controller that the VGA
  processor in the host system is disabled.

                     VGA RAM CONFIGURATION

       Memory            Bank 0/Bank 1       Bank 0/ Bank 1

        512KB            (2) 256K x 4             NONE

         1MB             (2) 256K x 4         (2) 256K x 4

  Note: Relative location of Bank 0 & Bank 1 is unidentified.

  FACTORY CONFIGURED - DO NOT ALTER

      Switch            Position

       SW1/8               On

       SW1/9               Off

      SW1/10               Off

      SW1/11               Off

                            DRAM TECHNICAL NOTE

  The AT1000 can come with either 1MB or 4MB of memory depending on the
  version you have. The exact memory configuration of this card is
  unidentified by the manufacturer.