
DTK COMPUTER, INC.

MINI/MICRO-4 FDC, PII-158B

Card Type          Floppy drive controller
Chipset/Controller Unknown
I/O Options        Floppy drive interface (2)
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

      Purpose           Location           Purpose           Location

  Floppy drive             P1          Floppy drive             P2
  interface                            interface

                        FLOPPY DRIVE SPEED SETTING

             Speed Setting                             JP1

                  Single                       Pins 1 & 2 closed

                    Dual                        Pins 2 & 3 closed

                        FLOPPY DRIVE DATA RATE

    Data Rate (KB/s)      Precompensation (ns)           JP2

          500                     125             Pins 2 & 3 closed

          250                     125             Pins 2 & 3 closed

          300                     125             Pins 2 & 3 closed

          250                     125             Pins 2 & 3 closed

          250                     125             Pins 2 & 3 closed

          1000                    83              Pins 2 & 3 closed

          1000                    83              Pins 2 & 3 closed

          500                     125             Pins 1 & 2 closed

          125                     250             Pins 1 & 2 closed

          125                     208             Pins 1 & 2 closed

          125                     250             Pins 1 & 2 closed

          125                     250             Pins 1 & 2 closed

          1000                    83              Pins 1 & 2 closed

          1000                    83              Pins 1 & 2 closed

                         SYSTEM TYPE CONFIGURATION

                    Type                                 JP3

                 XT/compatible                         Closed

                  AT/compatible                          Open

                       FLOPPY DRIVE ADDRESS SETTINGS

     Address         JP4/A          JP4/B         JP4/C         JP4/D

  CAOOOh-CBFFFh      Closed         Open         Closed          Open

  CCCOOh-CDFFFh       Open         Closed         Open          Closed

  CEOOOh-CFFFFh      Closed         Open          Open          Closed

                              DRIVE TYPE SELECTION

           Drive    Drive    Drive    Drive
             A       B        C        D

  Type     JP5/A   JP5/B    JP5/C    JP5/D    JP5/E    JP5/F    JP5/G    JP5/H

  360KB    Closed  Closed   Closed   Closed   Closed   Closed   Closed   Closed

  720KB    Open    Closed    Open    Closed    Open    Closed   Open     Closed

  1.2MB    Closed   Open    Closed    Open    Closed   Open     Closed   Open

  1.44MB   Open     Open     Open     Open     Open    Open     Open     Open

