
COMPUADD, INC.

HARDCACHE/ESDI

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Two RLL ESDI drives

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

[Image]

                           CONNECTIONS

                  Function                        Location

  20-pin data cable connector-drive 1                J1

  20-pin data cable connector-drive 0                J2

  34-pin data cable connector-floppy drive           J3

  34-pin control cable connector-hard drive          J4

  4-pin connector-drive active LED                   J5

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

     Floppy drive type is AT-type            W1             pins 1 & 2
                                                               closed

      Floppy drive type is PS/2 type          W1             pins 2 & 3
      1.44MB                                                   closed

     Floppy Drive Interrupt is IRQ6          W2             pins 1 & 2
                                                               closed

      Floppy Drive Interrupt is               W2             pins 2 & 3
      IRQ10                                                    closed

     Floppy Drive DMA Acknowledge            W3             pins 1 & 2
      is DACK2                                                 closed

      Floppy Drive DMA Acknowledge            W3             pins 2 & 3
      is DACK3                                                 closed

     Floppy Drive DMA Request is             W4             pins 1 & 2
      DREQ2                                                    closed

      Floppy Drive DMA Request is             W4             pins 2 & 3
      DREQ3                                                    closed

     Hard drive address 1F0-1F7h             W5                open

      Hard drive address 170-177h             W5               closed

     Floppy drive address 3F0-3F7h           W6                open

      Floppy drive address 370-377h           W6               closed

     BIOS enabled                            W7               closed

      BIOS disabled                           W7                open

     BIOS address C800-C9FFh                 W8                open

      BIOS address CA00-CBFFh                 W8               closed

     Floppy drive enabled                    W9                open

      Floppy drive disabled                   W9               closed

     Floppy drive single spindle             W10               open
      speed enabled

      Floppy drive dual spindle               W10              closed
      speed enabled

     256KB SIMM's supported                  W11            pins 1 & 2
                                                               closed

      1MB SIMM's supported                    W11            pins 2 & 3
                                                               closed

     Block Data Transfer mode                W12            pins 1 & 2
      enabled                                                  closed

      IRQ-Paced Data Transfer mode            W12            pins 2 & 3
      enabled                                                  closed

     Factory configured - do not             W13               open
      alter

