
DATA TECHNOLOGY CORPORATION

DTC2X77VL

Data Bus                32-bit VESA Local Bus
Card Size               Three-quarter length, full-height card
Hard Drives supported   Four IDE (AT) drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                                CONNECTIONS

        Function           Location          Function           Location

  40-pin primary IDE(AT)     JP1      34-pin cable connector      JP3
  connector                           - floppy drive

  40-pin secondary           JP2      Connector - drive           JP1
  IDE(AT) connector                   active LED

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Floppy drive interface enabled            JP2/4         Closed

      Floppy drive interface disabled           JP2/4          Open

     Hard drive primary I/O address select     JP2/5         Closed

      Hard drive secondary I/O address          JP2/5          Open
      select

     Factory configured - do not alter         JP2/6         Closed

                          BIOS ADDRESS SELECTION

         Address            JP2/pins 1 &    JP2/pins 3 &     JP2/pins 5 &
                                 2               4                6

        C8000h-CBFFFh         Closed            Open            Open

        CC000h-CEFFEh          Open            Closed           Open

        D0000h-D3FFEh         Closed           Closed           Open

        D4000h-D7EEEh          Open             Open           Closed

        D8000h-DBFFFh         Closed            Open           Closed

       DC000h-DEFFFh         Closed           Closed          Closed

           Disabled            Open             Open            Open

            DRAM CONFIGURATION

  Size        Bank 0           Bank 1

  512KB     (2) 256 x 9         None

   1KB      (2) 256 x 9      (2) 256 x 9

  1.5KB     (2) 256 x 9      (2) 1MB x 9

   2MB      (2) 1MB x 9         None

  2.5MB     (2) 1MB x 9      (2) 256 x 9

   4MB      (2) 1MB x 9      (2) 1MB x 9

   8MB      (2) 4MB x 9         None

  8.5MB     (2) 4MB x 9      (2) 256 x 9

  8.5MB     (2) 256 x 9      (2) 4MB x 9

  10MB      (2) 1MB x 9      (2) 4MB x 9

  10MB      (2) 4MB x 9      (2) 1MB x 9

  16MB      (2) 4MB x 9      (2) 4MB x 9

