(TXT) View Source
       
       # DTK COMPUTER, INC.
       
          PEM-2035
       
          Processor          80386DX                                     
          Processor Speed    20MHz                                       
          Chip Set           VLSI                                        
          Max. Onboard DRAM  16MB (8MB on external memory card)          
          Cache              None                                        
          BIOS               DTK                                         
          Dimensions         333mm x 222.5mm                             
          I/O Options        32-bit external memory card slot (PEI-306)  
          NPU Options        80387/3167                                  
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose       | Location | Purpose              | Location |
          |---------------+----------+----------------------+----------|
          | Power LED &   |    J1    | 32-bit external      |    S1    |
          | keylock       |          | memory card          |          |
          |---------------+----------+----------------------+----------|
          | Reset switch  |    J2    | Turbo switch         |    W4    |
          |---------------+----------+----------------------+----------|
          | Speaker       |    J3    | Turbo LED            |    W5    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | DRAM (16-bit) speed select 2     |   W2   | pins 2 & 3 |
          |   | wait state                       |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | DRAM (16-bit) speed select 1     |   W2   | pins 1 & 2 |
          |   | wait state                       |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | DRAM (8-bit) speed select 5 wait |   W3   | pins 2 & 3 |
          |   | state                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | DRAM (8-bit) speed select 4 wait |   W3   | pins 1 & 2 |
          |   | state                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | CPU speed select 20MHz           |   W4   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | CPU speed select 8MHz            |   W4   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU speed select switchable from |   W4   | pins 2 & 3 |
          |   | keyboard                         |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select monochrome   |   W6   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select color        |   W6   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | NPU disabled                     |   W7   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | NPU enabled                      |   W7   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |           Size           |             Bank 0              |
          |--------------------------+---------------------------------|
          |           1MB            |          (4) 256K x 9           |
          |--------------------------+---------------------------------|
          |           2MB            |          (4) 512K x 9           |
          |--------------------------+---------------------------------|
          |           4MB            |           (4) 1M x 9            |
          |------------------------------------------------------------|
          | Note:The 512K x 9 SIPP module is a proprietary DTK design. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              DRAM JUMPER/SWITCH CONFIGURATION              |
          |------------------------------------------------------------|
          | Size  | SW1/1  | SW1/2 | SW1/3 | SW1/4 |        W1         |
          |-------+--------+-------+-------+-------+-------------------|
          |  1MB  |   On   |  On   |  On   |  On   | pins 2 & 3 closed |
          |-------+--------+-------+-------+-------+-------------------|
          |  2MB  |   On   |  Off  |  On   |  On   | pins 2 & 3 closed |
          |-------+--------+-------+-------+-------+-------------------|
          |  4MB  |  Off   |  On   |  On   |  Off  | pins 1 & 2 closed |
          +------------------------------------------------------------+