
WESTERN DIGITAL CORPORATION

WD7000-ASC, WD7000-FASST

Data bus: 16-bit, PC/AT

Size: Full-length, full-height card

Hard Drives Supported: Up to seven SCSI devices

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

[Image]

                          CONNECTIONS

                  Function                       Location

  4-pin connector-drive active LED                  CN1

  34-pin data cable connector-floppy drive          CN2

  50-pin SCSI connector-internal                    CN3

  DB25 SCSI connector-external                      CN4

                        USER CONFIGURABLE SETTINGS

                Function                     Location         Setting

     Termination power enabled                JP5             closed

      Termination power disabled               JP5              open

     Single-speed floppy supported            JP7              open

      Dual-speed floppy supported              JP7             closed

     Write precompensation for floppy         JP8              open
      is 125nsec.

      Write precompensation for floppy         JP8             closed
      is 187nsec.

                   FLOPPY DRIVE INTERRUPT REQUEST - JP1

       IRQ         Jumper 1   Jumper 2    Jumper 3   Jumper 4   Jumper 5

     Disabled       open       open       open        open       open

      IRQ3          closed      open       open        open       open

      IRQ4           open      closed      open        open       open

      IRQ5           open       open      closed       open       open

      IRQ7           open       open       open       closed      open

      IRQ9           open       open       open        open      closed

                        DMA INTERRUPT REQUEST - JP2

          DRQ            Jumpers 1 & 4    Jumpers 2 & 5    Jumpers 3 & 6

      Disabled                open            open             open

      DRQ/DACK7              closed           open             open

     DRQ/DACK6               open           closed            open

      DRQ/DACK5               open            open            closed

                    HARD DRIVE INTERRUPT REQUEST - JP2

     IRQ        Jumper 7    Jumper 8    Jumper 9    Jumper 10   Jumper 11

  Disabled        open        open        open        open        open

  IRQ15          closed       open        open        open        open

  IRQ14           open       closed       open        open        open

  IRQ12           open        open       closed       open        open

  IRQ11           open        open        open       closed       open

  IRQ10           open        open        open        open       closed

                        FLOPPY CONTROLLER SETTINGS

               Function                       JP6               JP9

     Floppy drive enabled with no           open              open
      hard or combo card

      Floppy drive enabled with hard         open             closed
      card only

      Floppy drive disabled                 closed              N/A

                          I/O PORT ADDRESS - JP3

   Address      Jumper 1    Jumper 2    Jumper 3    Jumper 4    Jumper 5

      3F8h        open        open        open        open        open

      3F0h       closed       open        open        open        open

      3E8h        open       closed       open        open        open

      3E0h       closed      closed       open        open        open

      3D8h        open        open       closed       open        open

      3D0h       closed       open       closed       open        open

      3C8h        open       closed      closed       open        open

      3C0h       closed      closed      closed       open        open

      3B8h        open        open        open       closed       open

      3B0h       closed       open        open       closed       open

      3A8h        open       closed       open       closed       open

      3A0h       closed      closed       open       closed       open

      398h        open        open       closed      closed       open

      390h       closed       open       closed      closed       open

      388h        open       closed      closed      closed       open

      380h       closed      closed      closed      closed       open

      378h        open        open        open        open       closed

      370h       closed       open        open        open       closed

      368h        open       closed       open        open       closed

      360h       closed      closed       open        open       closed

      358h        open        open       closed       open       closed

      350h       closed       open       closed       open       closed

      348h        open       closed      closed       open       closed

      340h       closed      closed      closed       open       closed

      338h        open        open        open       closed      closed

      330h       closed       open        open       closed      closed

      328h        open       closed       open       closed      closed

     320h       closed      closed       open       closed      closed

      318h        open        open       closed      closed      closed

      310h       closed       open       closed      closed      closed

      308h        open       closed      closed      closed      closed

      300h       closed      closed      closed      closed      closed

                            BIOS ADDRESS - JP4

     Address        Jumper 1      Jumper 2      Jumper 3       Jumper 4

      DE00h           open          open          open           open

      DC00h          closed         open          open           open

      DA00h           open         closed         open           open

     D800h          closed        closed         open           open

      D600h           open          open         closed          open

      D400h          closed         open         closed          open

      D2OOh           open         closed        closed          open

      D000h          closed        closed        closed          open

      CE00h           open          open          open          closed

      CC00h          closed         open          open          closed

      CA00h           open         closed         open          closed

      C800h          closed        closed         open          closed

      C600h           open          open         closed         closed

      C400h          closed         open         closed         closed

      C200h           open         closed        closed         closed

      C000h          closed        closed        closed         closed

