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

   DTC6195, DTC6295, DTC6195-24, DTC6295-24

   Data bus: 32-bit, EISA

   Size: Full-length, full-height card

   Hard drives supported:  DTC6295:Two 10-15Mbit/second ESDI
   drives

   DTC6295-24:Two 10-24Mbit/sec ESDI drives

   Floppy drives supported: DTC6295 and DTC9295-24:Four 360KB,
   720KB, 1.2MB, and 1.44MB

   DTC6195 and DTC6195-24:None

   Sector interleave: 1:1

<gopher://bitreich.org/I/th99/c/C-D/20078-1.png>
   

   +------------------------------------------------------------+
   |                        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       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function              |   Location   | Setting |
   |-----------------------------------+--------------+---------|
   |>> | Factory configured - do not   | SW1/switch 3 |   on    |
   |   | alter                         |              |         |
   |---+-------------------------------+--------------+---------|
   |>> | Defective sectors listed on   | SW1/switch 4 |   on    |
   |   | cyl N-1 and cyl N-9           |              |         |
   |---+-------------------------------+--------------+---------|
   |   | Defective sectors listed on   | SW1/switch 4 |   off   |
   |   | cyl N-1 (N=# of Cyl.)         |              |         |
   |---+-------------------------------+--------------+---------|
   |>> | BIOS enabled                  | SW1/switch 5 |   on    |
   |---+-------------------------------+--------------+---------|
   |   | BIOS disabled                 | SW1/switch 5 |   off   |
   |---+-------------------------------+--------------+---------|
   |>> | Floppy drive enabled          | SW1/switch 6 |   off   |
   |---+-------------------------------+--------------+---------|
   |   | Floppy drive disabled         | SW1/switch 6 |   on    |
   |---+-------------------------------+--------------+---------|
   |>> | Unrestricted access mode      | SW1/switch 7 |   off   |
   |   | (hard drive, floppy drive and |              |         |
   |   | EISA register are accessible) |              |         |
   |---+-------------------------------+--------------+---------|
   |   | Restricted access mode (only  | SW1/switch 7 |   on    |
   |   | the EISA registers  are       |              |         |
   |   | accessible)                   |              |         |
   |---+-------------------------------+--------------+---------|
   |>> | Hard drive port address       | SW1/switch 8 |   off   |
   |   | 1F0-1F7h                      |              |         |
   |   |                               |              |         |
   |   | Floppy drive port address     |              |         |
   |   | 3F2-3F7h                      |              |         |
   |---+-------------------------------+--------------+---------|
   |   | Hard drive port address       | SW1/switch 8 |   on    |
   |   | 170-177h                      |              |         |
   |   |                               |              |         |
   |   | Floppy drive port address     |              |         |
   |   | 372-377h                      |              |         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |                                                            |
   |                DTC6295 AND DTC6295-24 ONLY                 |
   |------------------------------------------------------------|
   |             Function             |   Location    | Setting |
   |----------------------------------+---------------+---------|
   |>> | Floppy drive precomp. is     | SW2/switch 1  |   off   |
   |   | scaled by data rate:         |               |         |
   |   |                              |               |         |
   |   | 500KHz=125ns, 300KHz=208ns,  |               |         |
   |   | 250KHz=250ns                 |               |         |
   |---+------------------------------+---------------+---------|
   |   | Floppy drive precomp. is     | SW2/switch 1  |   on    |
   |   | 125ns                        |               |         |
   |---+------------------------------+---------------+---------|
   |>> | Floppy drive data transfer   | SW2/switch 2  |   off   |
   |   | rate is 300Kb/s              |               |         |
   |---+------------------------------+---------------+---------|
   |   | Floppy drive data transfer   | SW2/switch 2  |   on    |
   |   | rate is 250Kb/s              |               |         |
   |---+------------------------------+---------------+---------|
   |>> | Factory configured - do not  | SW2/switches  |   off   |
   |   | alter                        |     3 & 4     |         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        BIOS ADDRESS                        |
   |------------------------------------------------------------|
   |     Address      |    S1/switch 1     |    S1/switch 2     |
   |------------------+--------------------+--------------------|
   |      C800h       |        off         |        off         |
   |------------------+--------------------+--------------------|
   |      D800h       |        off         |         on         |
   |------------------+--------------------+--------------------|
   |      D400h       |         on         |        off         |
   |------------------+--------------------+--------------------|
   |      D000h       |         on         |         on         |
   +------------------------------------------------------------+