WESTERN DIGITAL CORPORATION

WD1002-WAH

 Data bus:                               16-bit, PC/AT

 Size:                                   Full-length, full-height card

 Hard drives supported:                  Two MFM ST506/412 drives

 Floppy drives supported:                None

[Image]

                        CONNECTIONS

                  Function                      Location

  34-pin control cable connector-hard drive        J1

  20-pin data cable connector-drive 0              J2

  20-pin data cable connector-drive 1              J3

                        USER CONFIGURABLE SETTINGS

               Function
                                            Location
                                                              Setting

  »
      Hard drive port address is
      1F0-1F7h;

      Floppy drive port address is
      3F6-3F7h
                                               W1
                                                             pins 1 & 2
                                                               closed


      Hard drive port address is
      170-177h;

      Floppy drive port address is
      376-377h
                                               W1
                                                             pins 2 & 3
                                                               closed

  »
      Auto deselect disabled
                                               W2
                                                             pins 2 & 3
                                                               closed


      Auto deselect enabled
                                               W2
                                                             pins 1 & 2
                                                               closed