TMC RESEARCH CORPORATION
========================

   PAT3XAL (VER. 2.0)

   Processor         80386SX/CX486SLC                             
   Processor Speed   20/25/33/40MHz                               
   Chip Set          VLSI                                         
   Max. Onboard DRAM 16MB                                         
   Cache             None                                         
   BIOS              Unidentified                                 
   Dimensions        220mm x 220mm                                
   I/O Options       None                                         
   NPU Options       80387SX                                      

<gopher://bitreich.org/I/th99/m/S-T/32379-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | External battery |    J4    | Turbo LED         | J8 (pins |
   |                  |          |                   |  1 - 2)  |
   |------------------+----------+-------------------+----------|
   | Reset switch     |    J6    | Turbo switch      | J8 (pins |
   |                  |          |                   |  4 - 5)  |
   |------------------+----------+-------------------+----------|
   | Speaker          |    J7    | Power LED &       |    J9    |
   |                  |          | keylock           |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Jumper |   Position   |
   |------------------------------------+--------+--------------|
   |>> | NPU synchronous with CPU       |  JP2   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | NPU asynchronous with CPU      |  JP2   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Monitor type select monochrome |  JP4   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | Monitor type select color      |  JP4   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Battery type select internal   |  JP7   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | Battery type select external   |  JP7   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | CMOS memory clear              |  JP7   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      512KB       |    (2) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       1MB        |    (2) 256K x 9    |    (2) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       2MB        |     (2) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (2) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       16MB       |     (2) 4M x 9     |     (2) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |      Speed       |        JP1         |        JP5         |
   |------------------+--------------------+--------------------|
   |      20MHz       | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      25MHz       | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      33MHz       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      40MHz       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+