TEXAS INSTRUMENTS
=================

   SYSTEM 1200/1300

   Processor       80386DX                                        
   Processor Speed 16/20MHz                                       
   Chip Set        Texas Instruments                              
   Max. onboard    8MB                                            
   DRAM            
   Cache           None                                           
   BIOS            Texas Instruments                              
   Dimensions      260mm x 220mm                                  
   I/O Options     External memory slot, parallel port, serial    
                   port                                           
   NPU Options     80387DX                                        

<gopher://bitreich.org/I/th99/m/S-T/31654-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location | Purpose            | Location |
   |-----------------+----------+--------------------+----------|
   | External memory |    J3    | CMOS battery       |   J10    |
   | slot            |          |                    |          |
   |-----------------+----------+--------------------+----------|
   | Serial port     |    J8    | Optional keyboard  |   J11    |
   |                 |          | connector          |          |
   |-----------------+----------+--------------------+----------|
   | Parallel port   |    J9    |                    |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              |   Switch   | Position |
   |------------------------------------+------------+----------|
   |>> | Monitor type select color      | SW1/switch |    On    |
   |   |                                |     1      |          |
   |---+--------------------------------+------------+----------|
   |   | Monitor type select monochrome | SW1/switch |   Off    |
   |   |                                |     1      |          |
   |---+--------------------------------+------------+----------|
   |>> | NPU enabled                    | SW1/switch |    On    |
   |   |                                |   2 & 3    |          |
   |---+--------------------------------+------------+----------|
   |   | NPU disabled                   | SW1/switch |   Off    |
   |   |                                |   2 & 3    |          |
   |---+--------------------------------+------------+----------|
   |>> | NPU synchronous with CPU       | SW1/switch |   Off    |
   |   |                                |     4      |          |
   |---+--------------------------------+------------+----------|
   |   | NPU asynchronous               | SW1/switch |    On    |
   |   |                                |     4      |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     LED CONFIGURATION                      |
   |------------------------------------------------------------|
   | Red1  | Yel.  | Gre.  | Red2  |        Item failed         |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  On   |  On   |  On   |            CPU             |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  On   |  On   |  Off  |     8142 test keyboard     |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  On   |  Off  |  On   |     8254 timer 1 test      |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  On   |  Off  |  Off  |       ROM CRC check        |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  Off  |  On   |  On   |       CMOS RAM test        |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  Off  |  On   |  Off  |    Memory refresh test     |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  Off  |  Off  |  On   |     0 - 256K RAM test      |
   |-------+-------+-------+-------+----------------------------|
   |  On   |  Off  |  Off  |  Off  |      Turbo mode test       |
   |-------+-------+-------+-------+----------------------------|
   |  Off  |  Off  |  Off  |  Off  |     Turbo parity error     |
   |-------+-------+-------+-------+----------------------------|
   |  Off  |  Off  |  Off  |  On   |   Nonturbo parity error    |
   |-------+-------+-------+-------+----------------------------|
   |  Off  |  On   |  On   |  On   |         8259 test          |
   |-------+-------+-------+-------+----------------------------|
   |  Off  |  On   |  On   |  On   |    8254 timer interrupt    |
   |-------+-------+-------+-------+----------------------------|
   |  Off  |  On   |  On   |  Off  |    Protected mode test     |
   |-------+-------+-------+-------+----------------------------|
   |  Off  |  On   |  Off  |  On   |     8254 timer 2 test      |
   |-------+-------+-------+-------+----------------------------|
   |  Off  |  On   |  Off  |  Off  |          DMA test          |
   +------------------------------------------------------------+