DATA TECHNOLOGY CORPORATION
===========================

   DTC5110

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

<gopher://bitreich.org/I/th99/i/C-D/50303-1.png>
   

   +------------------------------------------------------------+
   |                        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   | Pins 2 & 3 for high density  |
   |    |   PS-2-type systems)   |     media, 1 & 2 for low     |
   |------------------------------------------------------------|
   | Note: These jumpers are not needed for ANSI-type drives.   |
   +------------------------------------------------------------+