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       # TEXAS INSTRUMENTS
       
          SYSTEM SP1000
       
          Processor         80386SX                                      
          Processor Speed   16MHz                                        
          Chip Set          AMD                                          
          Max. onboard DRAM 1MB                                          
          Cache             None                                         
          BIOS              AMD                                          
          Dimensions        355mm x 304mm                                
          I/O Options       32-bit proprietary bus slot                  
          NPU Options       80387SX                                      
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose       | Location | Purpose              | Location |
          |---------------+----------+----------------------+----------|
          | Control panel |   J23    | 32-bit proprietary   |    S1    |
          | connector     |          | bus slot             |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |             Function              |   Switch   | Position  |
          |-----------------------------------+------------+-----------|
          | » | Monitor type select           | SW1/switch |    Off    |
          |   | monochrome                    |     5      |           |
          |---+-------------------------------+------------+-----------|
          |   | Monitor type select color     | SW1/switch |    On     |
          |   |                               |     5      |           |
          |---+-------------------------------+------------+-----------|
          | » | CPU speed select smart mode   | SW1/switch |    On     |
          |   |                               |     6      |           |
          |---+-------------------------------+------------+-----------|
          |   | CPU speed select 16MHz        | SW1/switch |    Off    |
          |   |                               |     6      |           |
          |---+-------------------------------+------------+-----------|
          | » | Factory configured - do not   | SW2/switch |    N/A    |
          |   | alter                         |     1      |           |
          |---+-------------------------------+------------+-----------|
          | » | System select 1 wait state    | SW2/switch |    Off    |
          |   |                               |     3      |           |
          |---+-------------------------------+------------+-----------|
          |   | System select 0 wait states   | SW2/switch |    On     |
          |   |                               |     3      |           |
          |---+-------------------------------+------------+-----------|
          | » | Factory configured - do not   | SW2/switch |    N/A    |
          |   | alter                         |     4      |           |
          |------------------------------------------------------------|
          | Note:In the smart mode, the processor slows down during    |
          | accesses to the diskette drive.                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     BIOS CONFIGURATION                     |
          |------------------------------------------------------------|
          |  BIOS  |SW1/switch 1|SW1/switch 2|SW1/switch 3|SW1/switch 4|
          |--------+------------+------------+------------+------------|
          |»|27128 |     On     |     On     |    Off     |    Off     |
          |-+------+------------+------------+------------+------------|
          | |27256 |    Off     |    Off     |     On     |     On     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     NPU CONFIGURATION                      |
          |------------------------------------------------------------|
          |     NPU      |        J20        |    J21     |    J22     |
          |--------------+-------------------+------------+------------|
          | » | Enabled  | pins 1 & 2 closed | pins 1 & 2 | pins 2 & 3 |
          |   |          |                   |   closed   |   closed   |
          |---+----------+-------------------+------------+------------|
          |   | Disabled | pins 2 & 3 closed | pins 2 & 3 | pins 1 & 2 |
          |   |          |                   |   closed   |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SYSTEM DRAM CONFIGURATION                  |
          |------------------------------------------------------------|
          |            Size            |             DIPPs             |
          |----------------------------+-------------------------------|
          |            1MB             |          (32) 41256           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SYSTEM MEMORY MODE CONFIGURATION              |
          |------------------------------------------------------------|
          | Base  |    BIOS     |   External   | SW1/7 | SW1/8 | SW2/2 |
          |       |             |    Memory    |       |       |       |
          |-------+-------------+--------------+-------+-------+-------|
          | 640KB |   Normal    |     0KB      |  On   |  On   |  Off  |
          |-------+-------------+--------------+-------+-------+-------|
          | 640KB | Loaded high |     0KB      |  On   |  Off  |  Off  |
          |-------+-------------+--------------+-------+-------+-------|
          | 640KB |   Normal    |    256KB     |  Off  |  On   |  On   |
          |-------+-------------+--------------+-------+-------+-------|
          | 640KB | Loaded high |    256KB     |  Off  |  Off  |  On   |
          +------------------------------------------------------------+
       
   IMG IMG 2
          
       
   IMG IMG 3
          
       
          +------------------------------------------------------------+
          |       USER CONFIGURABLE SETTINGS FOR EXTERNAL MEMORY       |
          |------------------------------------------------------------|
          |             Function              | Jumper |   Position    |
          |-----------------------------------+--------+---------------|
          | » | Factory configured - do not   |  JP1   |  pins 1 & 2   |
          |   | alter                         |        |    closed     |
          |---+-------------------------------+--------+---------------|
          | » | Factory configured - do not   |  JP2   |  pins 2 & 3   |
          |   | alter                         |        |    closed     |
          |---+-------------------------------+--------+---------------|
          | » | Factory configured - do not   |  TP1   | pins 3 & 8, 4 |
          |   | alter                         |        |  & 9 closed   |
          |---+-------------------------------+--------+---------------|
          | » | Factory configured - do not   |  TP2   | pins 3 & 8, 4 |
          |   | alter                         |        |  & 9 closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               EXTERNAL MEMORY CONFIGURATION                |
          |------------------------------------------------------------|
          | Size |   Bank 1    |   Bank 2    |   Bank 3   |   Bank 4   |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (16) 411000 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (16) 411000 | (16) 411000 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (16) 411000 | (16) 411000 |    (16)    |    NONE    |
          |      |             |             |   411000   |            |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (16) 411000 | (16) 411000 |    (16)    |    (16)    |
          |      |             |             |   411000   |   411000   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            EXTERNAL MEMORY SWITCH CONFIGURATION            |
          |------------------------------------------------------------|
          |    Size    | SW1/switch 1  | SW1/switch 2  | SW1/switch 3  |
          |------------+---------------+---------------+---------------|
          |    2MB     |      On       |      On       |      On       |
          |------------+---------------+---------------+---------------|
          |    4MB     |      Off      |      On       |      On       |
          |------------+---------------+---------------+---------------|
          |    6MB     |      Off      |      Off      |      On       |
          |------------+---------------+---------------+---------------|
          |    8MB     |      Off      |      Off      |      Off      |
          +------------------------------------------------------------+