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

   DTC6180, DTC6280

   +------------------------------------------------------------+
   +------------------------------------------------------------+

   Data bus: 16-bit, ISA

   Size: Full-length, full-height card

   Hard drives supported:  Two RLL ESDI drive with 17, 32, or 60
   sector mapping

   Floppy drives supported: DTC6180: None

   DTC6280: Two 360KB, 720KB, 1.2MB, 1.44MB

   Sector interleave: 1:1

<gopher://bitreich.org/I/th99/c/C-D/20074-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                    Function                     | Location |
   |-------------------------------------------------+----------|
   | 34 pin control cable connector-floppy drive     |    J1    |
   | (DTC6280 only)                                  |          |
   |-------------------------------------------------+----------|
   | 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    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            USER CONFIGURABLE SETTINGS - DTC6180            |
   |------------------------------------------------------------|
   |            Function            |   Location   |  Setting   |
   |--------------------------------+--------------+------------|
   |>> | Auto-deselect enabled      |      W1      |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Auto-deselect disabled     |      W1      |    open    |
   |---+----------------------------+--------------+------------|
   |>> | Floppy Drive Changed       |      W2      |    open    |
   |   | Signal not driven          |              |            |
   |---+----------------------------+--------------+------------|
   |   | Floppy Drive Changed       |      W2      |   closed   |
   |   | Signal driven low          |              |            |
   |---+----------------------------+--------------+------------|
   |>> | Factory configured - do    |      W3      |   closed   |
   |   | not alter                  |              |            |
   |---+----------------------------+--------------+------------|
   |>> | Initial interrupt enabled  |      W4      | pins 2 & 3 |
   |   | after reset                |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Initial interrupt disabled |      W4      | pins 1 & 2 |
   |   | after reset                |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Hard drive port address    | SW1/switch 1 |    off     |
   |   | 1F0-1F7h and 3F2-3F7h      |     & 2      |            |
   |---+----------------------------+--------------+------------|
   |   | Hard drive port address    | SW1/switch 1 |     on     |
   |   | 170-177h and 372-377h      |     & 2      |            |
   |---+----------------------------+--------------+------------|
   |>> | BIOS address C800h         | SW1/switch 3 |    off     |
   |---+----------------------------+--------------+------------|
   |   | BIOS address D800h         | SW1/switch 3 |     on     |
   |---+----------------------------+--------------+------------|
   |>> | BIOS enabled               | SW1/switch 4 |     on     |
   |---+----------------------------+--------------+------------|
   |   | BIOS disabled              | SW1/switch 4 |    off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            USER CONFIGURABLE SETTINGS - DTC6280            |
   |------------------------------------------------------------|
   |            Function            |   Location   |  Setting   |
   |--------------------------------+--------------+------------|
   |>> | Auto-deselect enabled      |      W1      |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Auto-deselect disabled     |      W1      |    open    |
   |---+----------------------------+--------------+------------|
   |>> | Initial interrupt enabled  |      W4      | pins 2 & 3 |
   |   | after reset (DTC6180 only) |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Initial interrupt disabled |      W4      | pins 1 & 2 |
   |   | after reset (DTC6180 only) |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Hard drive port address    | SW1/switch 1 |    off     |
   |   | 1F0-1F7h and 3F2-3F7h      |     & 2      |            |
   |---+----------------------------+--------------+------------|
   |   | Hard drive port address    | SW1/switch 1 |     on     |
   |   | 170-177h and 372-377h      |     & 2      |            |
   |---+----------------------------+--------------+------------|
   |>> | BIOS address C800h         | SW1/switch 3 |    off     |
   |---+----------------------------+--------------+------------|
   |   | BIOS address D800h         | SW1/switch 3 |     on     |
   |---+----------------------------+--------------+------------|
   |>> | BIOS enabled               | SW1/switch 4 |     on     |
   |---+----------------------------+--------------+------------|
   |   | BIOS disabled              | SW1/switch 4 |    off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    FLOPPY DRIVE DTC6280                    |
   |------------------------------------------------------------|
   |             Drive              |     W2      |     W3      |
   |--------------------------------+-------------+-------------|
   |>> | Floppy drive enabled       |   closed    |    open     |
   |---+----------------------------+-------------+-------------|
   |   | Floppy drive disabled      |    open     |   closed    |
   +------------------------------------------------------------+