DATA TECHNOLOGY CORPORATION

DTC6282-24

Data bus: 16-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two ESDI drives

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

[Image]

                           CONNECTIONS

                  Function                        Location

  34-pin data cable connector-floppy drive           J1

  34-pin control cable connector-hard drive          J2

  20-pin data cable connector-drive 0                J3

  20-pin data cable connector-drive 1                J4

  4-pin connector-drive active LED                   J5

                BIOS ADDRESS

    Address      W1/jumper 1   W1/jumper 2

     C800h          open          open

     D000h         closed         open

     D800h          open         closed

     D400h         closed        closed

                        USER CONFIGURABLE SETTINGS

                     Function                       Location     Setting

  »   BIOS enabled                                  W1/jumper    closed
                                                       3

      BIOS disabled                                 W1/jumper     open
                                                       3

  »   Initial interrupt enabled after reset         W1/jumper    closed
                                                       4

      Initial interrupt disabled after reset        W1/jumper     open
                                                       4

  »   Floppy drive uses standard logic              W1/jumper    closed
                                                       5

      Floppy drive uses reverse logic               W1/jumper     open
                                                       5

  »   Standard AT cable selected                    W1/jumper     open
                                                       6

      IBM cable selected                            W1/jumper    closed
                                                       6

  »   Normal IRQ timing                             W2/jumper     open
                                                       8

      IRQ delay (40 m                               W2/jumper    closed
                                                       8

  »   Floppy drive enabled                          W2/jumper     open
                                                       9

      Floppy drive disabled                         W2/jumper    closed
                                                       9

  »   Auto deselect disabled                        W2/jumper     open
                                                       10

      Auto deselect enabled                         W2/jumper    closed
                                                       10

  »   Hard drive port address is 1F0-1F7h           W2/jumper    closed
                                                       11

      Hard drive port address is 170-177h           W2/jumper     open
                                                       11

  »   Floppy drive precomp is scaled by data           W3        pins 1 &
      rate:                                                      2 open
      500KHz=125ns;300KHz=208ns;250KHz=250ns

      Floppy drive precompensation is 125ns            W3        pins 1 &
                                                                 2 closed

  »   Single speed floppy drives                       W3        pins 3 &
                                                                 4 open

      Dual speed floppy drives                         W3        pins 3 &
                                                                 4 closed

                             INTERRUPT REQUEST

                IRQ                    W2/jumper 12       W2/jumper 13

  »   Hard Drive Interrupt Request         open              closed
      is IRQ14

      Hard Drive Interrupt Request        closed              open
      is IRQ15

                     MISCELLANEOUS TECHNICAL NOTES

  W2/jumpers 1 through 7, and W2/jumpers 14 through 18 are Not used.