COMPUADD, INC.

HARDCACHE/SCSI

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Two SCSI drives, up to 5 other SCSI devices

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

[Image]

                          CONNECTIONS

                  Function                       Location

  50-pin SCSI connector-external                    CN1

  4-pin connector-drive active LED                  J1

  34-pin data cable connector-floppy drive          J2

  50-pin SCSI connector-internal                    J3

                        USER CONFIGURABLE SETTINGS

              Function                     Location           Setting

  »   Block Data Transfer mode           SW1/switch 1            on

      IRQ-Paced Data Transfer mode       SW1/switch 1           off

  »   Read config. sector on drive       SW1/switch 2            on
      0

      Read config. data in firmware      SW1/switch 2           off

  »   Floppy drive address 3F0-3F7h      SW1/switch 3           off

      Floppy drive address 370-377h      SW1/switch 3            on

  »   Floppy drive enabled               SW1/switch 4           off

      Floppy drive disabled              SW1/switch 4            on

  »   Single-speed floppy drive          SW1/switch 5           off
      supported

      Dual-speed floppy drive            SW1/switch 5            on
      supported

  »   BIOS enabled                       SW1/switch 6            on

      BIOS disabled                      SW1/switch 6           off

  »   BIOS address C800-C9FFh            SW2/switch 1           off

      BIOS address CA00-CBFFh            SW2/switch 1            on

  »   Hard drive address 1F0-1F7h        SW2/switch 2           off

      Hard drive address 170-177h        SW2/switch 2            on

  »   256KB SIMM's supported             SW2/switch 6            on

      1MB SIMM's supported               SW2/switch 6           off

  »   Hard Drive Interrupt is IRQ14           W1             pins 1 & 2
                                                               closed

      Hard Drive Interrupt is IRQ10           W1             pins 2 & 3
                                                               closed

                               SCSI ADDRESS

    SCSI ID        SW2/switch 3       SW2/switch 4        SW2/switch 5

         0             off                 off                 off

         1             off                 off                 on

         2             off                 on                  off

         3             off                 on                  on

         4              on                 off                 off

         5              on                 off                 on

         6              on                 on                  off

  »      7              on                 on                  on