WESTERN DIGITAL CORPORATION

WD1002-WA2

Data bus: 16-bit, PC/AT

Size: Full-length, full-height card

Hard drives supported: Two MFM ST506/412 drives

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

[Image]

                        CONNECTIONS

                  Function                      Location

  34-pin data cable connector-floppy drive         J1

  20-pin data cable connector-drive 1              J3

  20-pin data cable connector-drive 0              J4

  34-pin control cable connector-hard drive        J5

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

  »   Floppy drive port address is            E1             pins 2 & 3
      3F2h, 3F4-3F7h                                          closed

      Floppy drive port address is            E1             pins 1 & 2
      372h, 374-377h                                          closed

  »   Hard drive port address is              E2             pins 2 & 3
      1F0-1F7h & 3F6-3F7h                                     closed

      Hard drive port address is              E2             pins 1 & 2
      170-177h & 376-377h                                     closed

  »   Factory configured - do not             E3              closed
      alter