(TXT) View Source
       
       # DATA TECHNOLOGY CORPORATION
       
          DTC3280A, DTC3280AS (400480-89XX)
       
          +------------------------------------------------------------+
          +------------------------------------------------------------+
       
          Data bus:  16-bit, ISA.
       
          Size:  Half-length, full-height card.
       
          Hard drives supported:  Up to seven SCSI devices
       
          Floppy drives supported:  DTC3180A: None
       
          DTC3280A: Four 360KB, 720KB, 1.2MB or 1.44 MB drives
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                    Function                     | Location |
          |-------------------------------------------------+----------|
          | 50-pin SCSI connector-external                  |    J1    |
          |-------------------------------------------------+----------|
          | 50-pin SCSI connector-internal                  |    J2    |
          |-------------------------------------------------+----------|
          | 34-pin data cable connector-floppy drive        |    J3    |
          | (DTC3280A and AS only)                          |          |
          |-------------------------------------------------+----------|
          | 4-pin connector-drive active LED                |    J4    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |            Function            |   Location   |  Setting   |
          |--------------------------------+--------------+------------|
          | » | Single-speed floppy        | SW1/switch 7 |    off     |
          |   | supported                  |              |            |
          |---+----------------------------+--------------+------------|
          |   | Dual-speed floppy          | SW1/switch 7 |     on     |
          |   | supported                  |              |            |
          |---+----------------------------+--------------+------------|
          | » | PS/2-type floppy on Drive  | SW1/switch 8 |     on     |
          |   | Select 2 not supported     |              |            |
          |---+----------------------------+--------------+------------|
          |   | PS/2-type floppy drive on  | SW1/switch 8 |    off     |
          |   | Drive Select 2 supported   |              |            |
          |---+----------------------------+--------------+------------|
          | » | Floppy drive precomp. is   | SW1/switch 9 |    off     |
          |   | scaled by data rate:       |              |            |
          |   |                            |              |            |
          |   | 500KHz=125ns,              |              |            |
          |   | 300KHz=208ns, 250KHz=250ns |              |            |
          |---+----------------------------+--------------+------------|
          |   | Floppy drive               | SW1/switch 9 |     on     |
          |   | precompensation is 125ns   |              |            |
          |---+----------------------------+--------------+------------|
          | » | Floppy drive enabled       |  SW1/switch  |     on     |
          |   |                            |      10      |            |
          |---+----------------------------+--------------+------------|
          |   | Floppy drive disabled      |  SW1/switch  |    off     |
          |   |                            |      10      |            |
          |---+----------------------------+--------------+------------|
          | » | Factory configured - do    | SW2/switch 3 |    off     |
          |   | not alter                  |              |            |
          |---+----------------------------+--------------+------------|
          | » | Factory configured - do    | SW2/switch 4 |    off     |
          |   | not alter                  |              |            |
          |---+----------------------------+--------------+------------|
          | » | SCSI parity check enabled  | SW2/switch 5 |    off     |
          |---+----------------------------+--------------+------------|
          |   | SCSI parity check disabled | SW2/switch 5 |     on     |
          |---+----------------------------+--------------+------------|
          | » | 2KB SRAM selected          |      W1      | pins 2 & 3 |
          |   |                            |              |   closed   |
          |---+----------------------------+--------------+------------|
          |   | 8KB SRAM selected          |      W1      | pins 1 & 2 |
          |   |                            |              |   closed   |
          |---+----------------------------+--------------+------------|
          | » | Floppy drive address       |      W2      | pins 1 & 2 |
          |   | 3F2-3F7h                   |              |   closed   |
          |---+----------------------------+--------------+------------|
          |   | Floppy drive address       |      W2      | pins 2 & 3 |
          |   | 372-377h                   |              |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           INQUIRY INTERRUPT REQUEST "B " OPTIONS           |
          |------------------------------------------------------------|
          |   IRQ    |SW1/switch 1|SW1/switch 2|SW1/switch |SW1/switch |
          |          |            |            |     3     |     4     |
          |----------+------------+------------+-----------+-----------|
          |»| IRQ11  |    off     |    off     |    on     |    off    |
          |-+--------+------------+------------+-----------+-----------|
          | | IRQ10  |    off     |    off     |    off    |    on     |
          |-+--------+------------+------------+-----------+-----------|
          | | IRQ12  |    off     |     on     |    off    |    off    |
          |-+--------+------------+------------+-----------+-----------|
          | | IRQ15  |     on     |    off     |    off    |    off    |
          |-+--------+------------+------------+-----------+-----------|
          | |Disabled|    off     |    off     |    off    |    off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        BIOS ADDRESS                        |
          |------------------------------------------------------------|
          |     Address      |    SW1/switch 5    |    SW1/switch 6    |
          |------------------+--------------------+--------------------|
          | » |    D800h     |        off         |        off         |
          |---+--------------+--------------------+--------------------|
          |   |    C800h     |        off         |         on         |
          |---+--------------+--------------------+--------------------|
          |   |    DC00h     |         on         |        off         |
          |---+--------------+--------------------+--------------------|
          |   |    CC00h     |         on         |         on         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     INTERRUPT REQUEST                      |
          |------------------------------------------------------------|
          |       IRQ        |    SW2/switch 1    |    SW2/switch 2    |
          |------------------+--------------------+--------------------|
          | » |    IRQ11     |        off         |         on         |
          |---+--------------+--------------------+--------------------|
          |   |    IRQ12     |         on         |        off         |
          |---+--------------+--------------------+--------------------|
          |   |    IRQ10     |         on         |         on         |
          |---+--------------+--------------------+--------------------|
          |   |    IRQ15     |        off         |        off         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        SCSI ADDRESS                        |
          |------------------------------------------------------------|
          |  SCSI ID   | SW2/switch 6  | SW2/switch 7  | SW2/switch 8  |
          |------------+---------------+---------------+---------------|
          |    |   0   |      on       |      on       |      on       |
          |----+-------+---------------+---------------+---------------|
          |    |   1   |      off      |      on       |      on       |
          |----+-------+---------------+---------------+---------------|
          |    |   2   |      on       |      off      |      on       |
          |----+-------+---------------+---------------+---------------|
          |    |   3   |      off      |      off      |      on       |
          |----+-------+---------------+---------------+---------------|
          |    |   4   |      on       |      on       |      off      |
          |----+-------+---------------+---------------+---------------|
          |    |   5   |      off      |      on       |      off      |
          |----+-------+---------------+---------------+---------------|
          |    |   6   |      on       |      off      |      off      |
          |----+-------+---------------+---------------+---------------|
          | »  |   7   |      off      |      off      |      off      |
          +------------------------------------------------------------+