(TXT) View Source
       
       # AMERICAN DIGICOM CORPORATION
       
          DIGIS-286C
       
          Processor         80286 (exact location unknown)               
          Processor Speed   12MHz                                        
          Chip Set          Suntac                                       
          Max. Onboard DRAM 4MB                                          
          Cache             None                                         
          BIOS              Award/Phoenix                                
          Dimensions        330mm x 218mm                                
          I/O Options       None                                         
          NPU Options       None                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | Speaker             |   J19    | Turbo LED      |   JP4    |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |   J20    | Turbo switch   |   JP5    |
          |---------------------+----------+----------------+----------|
          | External battery    |   J21    | Reset switch   |   JP6    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | CPU clock speed select    |    DSP1/1     |     On     |
          |   | high                      |               |            |
          |---+---------------------------+---------------+------------|
          |   | CPU clock speed select    |    DSP1/1     |    Off     |
          |   | low                       |               |            |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |    DSP1/2     |     On     |
          |   | not alter                 |               |            |
          |---+---------------------------+---------------+------------|
          | » | I/O wait state select 4   |    DSP1/3     |     On     |
          |   | wait states               |               |            |
          |---+---------------------------+---------------+------------|
          |   | I/O wait state select 6   |    DSP1/3     |    Off     |
          |   | wait states               |               |            |
          |---+---------------------------+---------------+------------|
          | » | EMS port address select   |    DSP1/4     |     On     |
          |   | 0EBH                      |               |            |
          |---+---------------------------+---------------+------------|
          |   | EMS port address select   |    DSP1/4     |    Off     |
          |   | 098H                      |               |            |
          |---+---------------------------+---------------+------------|
          | » | RAM size select 256KB     |      J18      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | RAM size select 512KB     |      J18      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | CPU clock speed select    |      JP1      |    Open    |
          |   | high                      |               |            |
          |---+---------------------------+---------------+------------|
          |   | CPU clock speed select    |      JP1      | pins 2 & 3 |
          |   | low                       |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | I/O wait control select   |      JP3      | pins 1 & 2 |
          |   | keyboard                  |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | I/O wait control select   |      JP3      | pins 2 & 3 |
          |   | DSP1/3                    |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Turbo enabled             |      JP4      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | Turbo disabled            |      JP4      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | BIOS type select Phoenix  |      JP7      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | BIOS type select Award    |      JP7      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | DRAM mode select expanded |      JP8      |    Open    |
          |---+---------------------------+---------------+------------|
          |   | DRAM mode select extended |      JP8      |   Closed   |
          |---+---------------------------+---------------+------------|
          | » | DRAM wait state select 1  |     JP19      |    Open    |
          |   | wait state                |               |            |
          |---+---------------------------+---------------+------------|
          |   | DRAM wait state select 0  |     JP19      |   Closed   |
          |   | wait states               |               |            |
          |------------------------------------------------------------|
          | Note: The location of DSP1 is unknown.                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |Mode | Size |Base |Extended|Expanded|  Bank 0   |  Bank 1   |
          |-----+------+-----+--------+--------+-----------+-----------|
          |  0  |512KB |512KB|  0KB   |  0KB   |(18) 41256 |   NONE    |
          |-----+------+-----+--------+--------+-----------+-----------|
          |  1  |640KB |640KB|  0KB   |  0KB   |(18) 41256 | (18) 4164 |
          |-----+------+-----+--------+--------+-----------+-----------|
          |  2  | 1MB  |640KB| 384KB  |  0KB   |(18) 41256 |(18) 41256 |
          |-----+------+-----+--------+--------+-----------+-----------|
          |  3  | 1MB  |640KB|  0KB   | 384KB  |(18) 41256 |(18) 41256 |
          |-----+------+-----+--------+--------+-----------+-----------|
          |  4  | 2MB  |640KB| 1408KB |  0KB   |(18) 411000|   NONE    |
          |-----+------+-----+--------+--------+-----------+-----------|
          |  5  | 2MB  |640KB|  0KB   | 1408KB |(18) 411000|   NONE    |
          |-----+------+-----+--------+--------+-----------+-----------|
          |  6  | 4MB  |640KB| 3456KB |  0KB   |(18) 411000|(18) 411000|
          |-----+------+-----+--------+--------+-----------+-----------|
          |  7  | 4MB  |640KB|  0KB   | 3456KB |(18) 411000|(18) 411000|
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM SWITCH CONFIGURATION                  |
          |------------------------------------------------------------|
          |    Mode     |    DSP1/6     |    DSP1/7     |    DSP1/8    |
          |-------------+---------------+---------------+--------------|
          |      0      |      On       |      On       |      On      |
          |-------------+---------------+---------------+--------------|
          |      1      |      On       |      On       |     Off      |
          |-------------+---------------+---------------+--------------|
          |      2      |      On       |      Off      |      On      |
          |-------------+---------------+---------------+--------------|
          |      3      |      On       |      Off      |     Off      |
          |-------------+---------------+---------------+--------------|
          |      4      |      Off      |      On       |      On      |
          |-------------+---------------+---------------+--------------|
          |      5      |      Off      |      On       |     Off      |
          |-------------+---------------+---------------+--------------|
          |      6      |      Off      |      Off      |      On      |
          |-------------+---------------+---------------+--------------|
          |      7      |      Off      |      Off      |     Off      |
          |------------------------------------------------------------|
          | Note: The location of DSP1 is unknown.                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     BIOS CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size        |      DSP1/5       |        JP9         |
          |-------------------+-------------------+--------------------|
          |       27128       |        On         | pins 1 & 2 closed  |
          |-------------------+-------------------+--------------------|
          |       27256       |        Off        | pins 2 & 3 closed  |
          +------------------------------------------------------------+