WESTERN DIGITAL CORPORATION

WD1002-FOX

  Data bus:                  8-bit, ISA

  Size:                      Half-length, half-height card

  Hard drive supported:      N/A

  Floppy drives supported:   Two 360KB, 1.2MB drives or floppy tape
                             drives

[Image]

                          CONNECTIONS

                  Function                       Location

  34-pin connector - floppy drive internal          CN1

  37-pin floppy disk drive port - external          CN2

                        USER CONFIGURABLE SETTINGS

              Function                     Location           Setting

  Factory configured setting - do             W3             pins 1 & 2
  not alter                                                   closed

  Factory configured setting - do             W4             pins 2 & 3
  not alter                                                   closed

  Optional BIOS - enabled                     W5             pins 1 & 2
                                                              closed

  Optional BIOS - disabled                    W5             pins 2 & 3
                                                              closed

  Controller grounded to chassis              W6             pins 1 & 2
                                                              closed

  Controller not grounded                     W6             pins 2 & 3
                                                              closed

  Dual speed spindle option -                 W7              closed
  enabled

  Dual speed spindle option -                 W7               open
  disabled

  Precompensation set to 187nsec              W8              closed

  Precompensation set to 125nsec              W8               open

                            DRIVE POWER SELECT

        Setting               W9              W10               W11

   Power supplied by        closed           closed           closed
         host

   Power supplied by         open             open             open
         drive

                               BIOS ADDRESS

         Address                    W1                       W2

      EF000 - EEFFF         pins 2 & 3 closed        pins 2 & 3 closed

      ED000 - ECFFF         pins 2 & 3 closed        pins 1 & 2 closed

      CF000 - CEFFF         pins 1 & 2 closed        pins 2 & 3 closed

      CD000 - CCFFF         pins 1 & 2 closed        pins 1 & 2 closed

  Note: If W1 & W2 are removed this will disable the BIOS regardless of
  the setting of W5.