PERCEPTIVE SOLUTIONS, INC.

1200SX DATASHADOW SCSI CONTROLLER

Card Type                Floppy drive controller, Hard drive controller
                         card
Hard Drives supported    Up to 7 SCSI devices
Floppy drives supported  Two 360KB, 720KB, 1.2MB, or 1.44MB drives
Data Bus                 16-bit ISA
Card Size                Three-quarter length, full-height card

[Image]

                                CONNECTIONS

        Function           Location          Function           Location

  4-pin connector -          CN1      34-pin cable connector      CN3
  drive active LED                    - floppy drive

  50-pin SCSI connector      CN2      50-pin SCSI connector       CN4
  - internal                          - external

                        USER CONFIGURABLE SETTINGS

                   Function                     Label        Position

  »   SCSI termination enabled                  SW1/A           On

      SCSI termination disabled                 SW1/A           Off

  »   HSOS load enabled                         SW1/B           Off

      HSOS load disabled                        SW1/B           On

  »   Floppy motor speed                        SW1/C           Off

  »   Floppy drive enable                       SW1/F           Off

      Floppy drive disable                      SW1/F           On

  »   Port address is 37x-3Fxh                  SW1/G           Off

      Port address is 17x-37xh                  SW1/G           On

         INTERRUPT SELECTION

  Interrupt     SW1/C        SW1/D

    IRQ14        Off          Off

    IRQ15        Off          On

                          BIOS ADDRESS SELECTION

     Address           SW1/H               SW1/I              SW1/J

      CA00h              On                 Off                Off

      C800h              On                 Off                On

      D000h             Off                 Off                Off

      D400h             Off                 On                 On

      D800h             Off                 On                 Off

      DA00h             Off                 Off                On

  BIOS disabled          On                 On                 On

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

      512KB       (2) 256KB x 9         None

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

       2MB         (2) 1MB x 9          None

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

       8MB         (2) 4MB x 9          None

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