WESTERN DIGITAL CORPORATION

WD1002A-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                     CN2

  4-pin power suppy for external drives             CN3

                        USER CONFIGURABLE SETTINGS

              Function                   Location            Setting

  High density ground return for            JP1             pins 1 & 2
  external drive                                              closed

  Standard ground return for                JP1             pins 2 & 3
  external drive                                              closed

  Primary address - (320 - 323)             JP4             pins 1 & 2
                                                              closed

  Secondary address - (328 - 32B)           JP4             pins 2 & 3
                                                              closed

  +5V tied to (CN2) pin 4 for               JP5             pins 1 & 2
  external drive                                              closed

  No connection via pin 4 for               JP5             pins 2 & 3
  external drive                                              closed

  +12V tied to (CN2) pin 1 for              JP6             pins 1 & 2
  external drive                                              closed

  No connection via pin 1 for               JP6             pins 2 & 3
  external drive                                              closed

  Dual speed spinde option -                JP7               closed
  enabled

  Dual speed spinde option -                JP7                open
  disabled

  Ground tied to chassis ground -           JP8               closed
  enabled

  Ground tied to chassis ground -           JP8                open
  disabled

                         BIOS ADDRESS

       Setting               JP2                  JP3

   EE000 - EFFFFh      pins 2 & 3 closed   Pins 2 & 3 closed

   CE000 - CFFFFh      pins 2 & 3 closed   pins 1 & 2 closed

   EC000 - EDFFFh      pins 1 & 2 closed   pins 2 & 3 closed

   CC000 - CDFFFh      pins 1 & 2 closed   pins 1 & 2 closed

      DRIVE 1 TYPE SELECT

  Setting    SW1/1      SW1/2

   360KB      off        off

   1.2MB      off        on

   720KB       on        off

  1.44MB       on        on

      DRIVE 2 TYPE SELECT

  Setting    SW1/3      SW1/4

   360KB      off        off

   1.2MB      off        on

   720KB       on        off

  1.44MB       on        on

      DRIVE 3 TYPE SELECT

  Setting    SW1/5      SW1/6

   360KB      off        off

   1.2MB      off        on

   720KB       on        off

  1.44MB       on        on

      DRIVE 4 TYPE SELECT

  Setting    SW1/7      SW1/8

   360KB      off        off

   1.2MB      off        on

   720KB       on        off

  1.44MB       on        on