
WESTERN DIGITAL CORPORATION

WDAT-240

Data bus: 16-bit, PC/AT

Size: Half-length, full-height card

Hard drives supported: Two IDE (AT) Interface drives

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

[Image]

                                CONNECTIONS

                     Function                             Location

  34-pin data cable connector-floppy drive                   J1

  40-pin AT Interface (IDE) control cable                    J2
  connector-internal

                           DIRQ14 SIGNAL SELECT

                Function                    Jumper W1        Jumper W1A

     DIRQ14 signal passed to host             open            closed
      computer

      Conner CP342/CP3022 in true IBM         closed            open
      AT

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

     Floppy controller enabled               W2               closed

      Floppy controller disabled              W2                open

     Floppy drive port address is            W2A               open
      3F0-3F7h

      Floppy drive port address is            W2A              closed
      370-377h

     Single speed floppy drive               W3                open

      Dual-speed floppy drive                 W3               closed

     Logic ground independent of             W4                open
      chassis

      Logic ground connected to               W4               closed
      chassis

