DTK COMPUTER, INC.
==================

   PTI-227W (VER. 3)

   Data Bus             16-bit ISA                                
   Card Size            Half-length, half-height card             
   Hard Drives          Two IDE (AT) drives                       
   supported            
   Floppy drives        Two 360KB, 720KB, 1.2MB, or 1.44MB drives 
   supported            

<gopher://bitreich.org/I/th99/c/C-D/21039-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Function      | Location |     Function     | Location |
   |-------------------+----------+------------------+----------|
   | 40-pin IDE(AT)    |   JP1    | 34-pin cable     |   JP5    |
   | connector         |          | connector -      |          |
   |                   |          | floppy drive     |          |
   |-------------------+----------+------------------+----------|
   | 16-pin game port  |   JP2    | 2-pin connector  |   JP8    |
   |                   |          | - drive active   |          |
   |                   |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | 9-pin serial port |   JP3    | 25-pin parallel  |   JP15   |
   | 1 - external      |          | port - external  |          |
   |-------------------+----------+------------------+----------|
   | 10-pin serial     |   JP4    |                  |          |
   | port 2 - internal |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | IDEIOR path ATBUS IOR select      |  J1   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | IDEIOR path W83758P chipset       |  J1   | Pins 1 & 2 |
   |   | (IOROP) select                    |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | IDEIOW path ATBUS IOW select      |  J2   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | IDEIOW path W83758P chipset       |  J2   | Pins 1 & 2 |
   |   | (IOWOP) select                    |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Floppy drive order is normal (A:, | JP6/1 | Pins 1 & 2 |
   |   | B:)                               |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Floppy drive order is reversed    | JP6/1 | Pins 2 & 3 |
   |   | (B:, A:)                          |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Floppy drive I/O address is       | JP6/2 | Pins 2 & 3 |
   |   | 3F0-3F7h                          |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Floppy drive I/O address is       | JP6/2 | Pins 1 & 2 |
   |   | 370-377h                          |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | IDE(AT) interface enabled         | JP6/3 | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | IDE(AT) interface disabled        | JP6/3 | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | IDE I/O address is 3F6, 3F7,      | JP6/4 | Pins 2 & 3 |
   |   | 1F0-1F7h                          |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | IDE I/O address is 376, 377,      | JP6/4 | Pins 1 & 2 |
   |   | 170-177h                          |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Floppy drive enabled              | JP6/5 | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Floppy drive disabled             | JP6/5 | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Parallel port is bidirectional    | JP11  |    Open    |
   |---+-----------------------------------+-------+------------|
   |   | Parallel port is output only      | JP11  |   Closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Game port enabled                 | JP16  |   Closed   |
   |---+-----------------------------------+-------+------------|
   |   | Game port disabled                | JP16  |    Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP9/5        |       JP9/6        |
   |------------------+--------------------+--------------------|
   |>> | LPT1 (378h)  | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   | LPT2 (278h)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   | LPT3 (3BCh)  | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 1 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP9/1        |       JP9/2        |
   |------------------+--------------------+--------------------|
   |>> | COM1 (3F8h)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM3 (3E8h)  | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM4 (2E8h)  | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 2 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP9/3        |       JP9/4        |
   |------------------+--------------------+--------------------|
   |>> | COM2 (3F8h)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM3 (3E8h)  | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM4 (2E8h)  | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |       IRQ        |   JP12/1    |   JP12/2    |   JP12/3    |
   |------------------+-------------+-------------+-------------|
   |   |     IRQ3     |    Open     |   Closed    |    Open     |
   |---+--------------+-------------+-------------+-------------|
   |>> |     IRQ4     |   Closed    |    Open     |    Open     |
   |---+--------------+-------------+-------------+-------------|
   |   |     IRQ5     |    Open     |    Open     |   Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |       IRQ        |   JP12/4    |   JP12/5    |   JP12/6    |
   |------------------+-------------+-------------+-------------|
   |>> |     IRQ3     |   Closed    |    Open     |    Open     |
   |---+--------------+-------------+-------------+-------------|
   |   |     IRQ4     |    Open     |   Closed    |    Open     |
   |---+--------------+-------------+-------------+-------------|
   |   |     IRQ5     |    Open     |    Open     |   Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |          IRQ          |      JP12/7      |     JP12/8      |
   |-----------------------+------------------+-----------------|
   |     |      IRQ5       |       Open       |     Closed      |
   |-----+-----------------+------------------+-----------------|
   |>>   |      IRQ7       |      Closed      |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   | In jumpers JP6/1-5 and JP9/1-6, pin positions 1 &2         |
   | correspond to "low" board positions. Positions 2 & 3       |
   | correspond to "high" board positions.                      |
   +------------------------------------------------------------+