DATA TECHNOLOGY CORPORATION

DTC5110

Card Type          Floppy drive controller
Chipset/Controller DTC403
I/O Options        Floppy drive interface
Maximum DRAM       N/A

[Image]

                    CONNECTIONS

         Purpose                  Location

  Floppy drive interface             CN1

                         I/O ADDRESS CONFIGURATION

            Port                     Address                  W1

  »          Primary               3F2h - 3F7h        Pins 1 & 2 closed

            Secondary              372h - 377h        Pins 2 & 3 closed

                          FLOPPY DRIVE DATA RATE

   Data Rate (KB/s)           Precompensation                  W2

  »         500                     125                      Closed

            300                     208                       Open

            250                     250                       Open

  Note: Leaving W2 open enables data-rate-dependent write
  precompensation.

    FLOPPY DRIVE SPEED SELECT

  Speed setting         W3

     Single            Open

      Dual            Closed

                    FLOPPY DRIVE POLARITY CONFIGURATION

                  Mode                            W4, W5, and W6

  »            Standard logic               Pins 1 & 2 for high density
                                               media, 2 & 3 for low

         Reverse logic (for PS-2-type       Pins 2 & 3 for high density
                  systems)                     media, 1 & 2 for low

  Note: These jumpers are not needed for ANSI-type drives.