(TXT) View Source
       
       # DATA TECHNOLOGY CORPORATION
       
          DTC6282-24
       
          +------------------------------------------------------------+
          +------------------------------------------------------------+
       
          Data bus: 16-bit, ISA
       
          Size: Half-length, full-height card
       
          Hard drives supported: Two ESDI drives
       
          Floppy drives supported: Four 360KB, 720KB, 1.2MB, or 1.44MB
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        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       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        BIOS ADDRESS                        |
          |------------------------------------------------------------|
          |     Address      |    W1/jumper 1     |    W1/jumper 2     |
          |------------------+--------------------+--------------------|
          |      C800h       |        open        |        open        |
          |------------------+--------------------+--------------------|
          |      D000h       |       closed       |        open        |
          |------------------+--------------------+--------------------|
          |      D800h       |        open        |       closed       |
          |------------------+--------------------+--------------------|
          |      D400h       |       closed       |       closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                 |Location |Setting |
          |-----------------------------------------+---------+--------|
          |»|BIOS enabled                           |W1/jumper| closed |
          | |                                       |    3    |        |
          |-+---------------------------------------+---------+--------|
          | |BIOS disabled                          |W1/jumper|  open  |
          | |                                       |    3    |        |
          |-+---------------------------------------+---------+--------|
          |»|Initial interrupt enabled after reset  |W1/jumper| closed |
          | |                                       |    4    |        |
          |-+---------------------------------------+---------+--------|
          | |Initial interrupt disabled after reset |W1/jumper|  open  |
          | |                                       |    4    |        |
          |-+---------------------------------------+---------+--------|
          |»|Floppy drive uses standard logic       |W1/jumper| closed |
          | |                                       |    5    |        |
          |-+---------------------------------------+---------+--------|
          | |Floppy drive uses reverse logic        |W1/jumper|  open  |
          | |                                       |    5    |        |
          |-+---------------------------------------+---------+--------|
          |»|Standard AT cable selected             |W1/jumper|  open  |
          | |                                       |    6    |        |
          |-+---------------------------------------+---------+--------|
          | |IBM cable selected                     |W1/jumper| closed |
          | |                                       |    6    |        |
          |-+---------------------------------------+---------+--------|
          |»|Normal IRQ timing                      |W2/jumper|  open  |
          | |                                       |    8    |        |
          |-+---------------------------------------+---------+--------|
          | |IRQ delay (40 m                        |W2/jumper| closed |
          | |                                       |    8    |        |
          |-+---------------------------------------+---------+--------|
          |»|Floppy drive enabled                   |W2/jumper|  open  |
          | |                                       |    9    |        |
          |-+---------------------------------------+---------+--------|
          | |Floppy drive disabled                  |W2/jumper| closed |
          | |                                       |    9    |        |
          |-+---------------------------------------+---------+--------|
          |»|Auto deselect disabled                 |W2/jumper|  open  |
          | |                                       |   10    |        |
          |-+---------------------------------------+---------+--------|
          | |Auto deselect enabled                  |W2/jumper| closed |
          | |                                       |   10    |        |
          |-+---------------------------------------+---------+--------|
          |»|Hard drive port address is 1F0-1F7h    |W2/jumper| closed |
          | |                                       |   11    |        |
          |-+---------------------------------------+---------+--------|
          | |Hard drive port address is 170-177h    |W2/jumper|  open  |
          | |                                       |   11    |        |
          |-+---------------------------------------+---------+--------|
          |»|Floppy drive precomp is scaled by data |   W3    |pins 1 &|
          | |rate:                                  |         | 2 open |
          | |500KHz=125ns;300KHz=208ns;250KHz=250ns |         |        |
          |-+---------------------------------------+---------+--------|
          | |Floppy drive precompensation is 125ns  |   W3    |pins 1 &|
          | |                                       |         |2 closed|
          |-+---------------------------------------+---------+--------|
          |»|Single speed floppy drives             |   W3    |pins 3 &|
          | |                                       |         | 4 open |
          |-+---------------------------------------+---------+--------|
          | |Dual speed floppy drives               |   W3    |pins 3 &|
          | |                                       |         |4 closed|
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     INTERRUPT REQUEST                      |
          |------------------------------------------------------------|
          |             IRQ              | W2/jumper 12 | W2/jumper 13 |
          |------------------------------+--------------+--------------|
          | » | Hard Drive Interrupt     |     open     |    closed    |
          |   | Request is IRQ14         |              |              |
          |---+--------------------------+--------------+--------------|
          |   | Hard Drive Interrupt     |    closed    |     open     |
          |   | Request is IRQ15         |              |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               MISCELLANEOUS TECHNICAL NOTES                |
          |------------------------------------------------------------|
          |  W2/jumpers 1 through 7, and W2/jumpers 14 through 18 are  |
          |                         Not used.                          |
          +------------------------------------------------------------+