TEXAS MICRO, INC.
=================

   P2000(D)FX (MKP) SBC

   Device Type      Single board computer                         
   Processor        Pentium II                                    
   Processor Speed  266/300/333MHz                                
   Chip Set         Intel 440FX                                   
   Maximum Onboard  512MB (EDO & SDRAM supported)                 
   Memory           
   Cache            512KB (located on Pentium II CPU)             
   BIOS             Unidentified                                  
   Dimensions       338mm x 122mm                                 
   I/O Options      Floppy drive interface, IDE interface, SCSI   
                    interface, parallel port, PS/2 mouse port,    
                    serial ports (2), USB connectors (2)          

<gopher://bitreich.org/I/th99/m/S-T/35908-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | IDE/SCSI LED       |    C1    | Temperature LED |   CN5    |
   |--------------------+----------+-----------------+----------|
   | Temperature sensor |    C2    | PS/2 mouse port |   CN6    |
   |--------------------+----------+-----------------+----------|
   | Auxiliary keyboard |    C3    | Parallel port   |   CN7    |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | SCSI interface     |   CN1    | USB connector   |   CN8    |
   |--------------------+----------+-----------------+----------|
   | IDE interface      |   CN2    | USB connector   |   CN9    |
   |--------------------+----------+-----------------+----------|
   | Floppy drive       |   CN3    | Serial port 1   |   CN10   |
   | interface          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Serial port 2      |   CN4    |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  JP4  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP14  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP15  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP19  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP25  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Monitor type select color       | SW1/1 |      On      |
   |---+---------------------------------+-------+--------------|
   |   | Monitor type select monochrome  | SW1/1 |     Off      |
   |---+---------------------------------+-------+--------------|
   |>> | Flash BIOS enabled; crisis      | SW1/2 |     Off      |
   |   | recovery mode disabled          |       |              |
   |---+---------------------------------+-------+--------------|
   |   | Flash BIOS disabled; crisis     | SW1/2 |      On      |
   |   | recovery mode enabled           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | CMOS memory normal operation    | SW1/3 |     Off      |
   |---+---------------------------------+-------+--------------|
   |   | CMOS memory clear               | SW1/3 |      On      |
   |---+---------------------------------+-------+--------------|
   |>> | I/O port address select 270/271 | SW1/4 |     Off      |
   |---+---------------------------------+-------+--------------|
   |   | I/O port address select 370/371 | SW1/4 |      On      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   |  8MB  | (1) 1M x 64 |    None    |    None    |    None    |
   |-------+-------------+------------+------------+------------|
   | 16MB  | (1) 2M x 64 |    None    |    None    |    None    |
   |-------+-------------+------------+------------+------------|
   | 16MB  | (1) 1M x 64 |  (1) 1M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 24MB  | (1) 2M x 64 |  (1) 1M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 24MB  | (1) 1M x 64 |  (1) 1M x  |  (1) 1M x  |    None    |
   |       |             |     64     |     64     |            |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (1) 4M x 64 |    None    |    None    |    None    |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (1) 2M x 64 |  (1) 2M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (1) 1M x 64 |  (1) 1M x  |  (1) 1M x  |  (1) 1M x  |
   |       |             |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 40MB  | (1) 4M x 64 |  (1) 1M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 4M x 64 |  (1) 2M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 2M x 64 |  (1) 2M x  |  (1) 2M x  |    None    |
   |       |             |     64     |     64     |            |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 2M x 64 |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
   |       |             |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 8M x 64 |    None    |    None    |    None    |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 4M x 64 |  (1) 4M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (1) 8M x 64 |  (1) 1M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 80MB  | (1) 8M x 64 |  (1) 2M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (1) 8M x 64 |  (1) 4M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (1) 4M x 64 |  (1) 4M x  |  (1) 4M x  |    None    |
   |       |             |     64     |     64     |            |
   |-------+-------------+------------+------------+------------|
   | 128MB |  (1) 16M x  |    None    |    None    |    None    |
   |       |     64      |            |            |            |
   |-------+-------------+------------+------------+------------|
   | 128MB | (1) 8M x 64 |  (1) 8M x  |    None    |    None    |
   |       |             |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 128MB | (1) 4M x 64 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
   |       |             |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 136MB |  (1) 16M x  |  (1) 1M x  |    None    |    None    |
   |       |     64      |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 144MB |  (1) 16M x  |  (1) 2M x  |    None    |    None    |
   |       |     64      |     64     |            |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DIMM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   | 176MB |  (1) 16M x  |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
   |       |     64      |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 192MB |  (1) 16M x  |  (1) 8M x  |    None    |    None    |
   |       |     64      |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 192MB | (1) 8M x 64 |  (1) 8M x  |  (1) 8M x  |    None    |
   |       |             |     64     |     64     |            |
   |-------+-------------+------------+------------+------------|
   | 256MB |  (1) 16M x  | (1) 16M x  |    None    |    None    |
   |       |     64      |     64     |            |            |
   |-------+-------------+------------+------------+------------|
   | 256MB | (1) 8M x 64 |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 272MB |  (1) 16M x  | (1) 16M x  |  (1) 1M x  |  (1) 1M x  |
   |       |     64      |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 288MB |  (1) 16M x  | (1) 16M x  |  (1) 2M x  |  (1) 2M x  |
   |       |     64      |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 320MB |  (1) 16M x  | (1) 16M x  |  (1) 4M x  |  (1) 4M x  |
   |       |     64      |     64     |     64     |     64     |
   |-------+-------------+------------+------------+------------|
   | 384MB |  (1) 16M x  | (1) 16M x  | (1) 16M x  |    None    |
   |       |     64      |     64     |     64     |            |
   |-------+-------------+------------+------------+------------|
   | 512MB |  (1) 16M x  | (1) 16M x  | (1) 16M x  | (1) 16M x  |
   |       |     64      |     64     |     64     |     64     |
   |------------------------------------------------------------|
   | Note: Board accepts EDO memory.                            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: 512KB cache is located on the Pentium II CPU.        |
   +------------------------------------------------------------+

   +-------------------------------------------------------------+
   |                     CPU SPEED SELECTION                     |
   |-------------------------------------------------------------|
   | CPU  |Clock|Multiplier| JP12 | JP13 |JP17| JP18 |JP24| JP26 |
   |speed |speed|          |      |      |    |      |    |      |
   |------+-----+----------+------+------+----+------+----+------|
   |233MHz|66MHz|   3.5x   |Closed|Closed|Open|Closed|Open|Closed|
   |------+-----+----------+------+------+----+------+----+------|
   |266MHz|66MHz|    4x    | Open |Closed|Open|Closed|Open|Closed|
   |------+-----+----------+------+------+----+------+----+------|
   |300MHz|66MHz|   4.5x   |Closed| Open |Open|Closed|Open|Closed|
   +-------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  SERIAL PORT 2 SELECTION                   |
   |------------------------------------------------------------|
   |  Setting   |      JP2      |      JP5      |      JP6      |
   |------------+---------------+---------------+---------------|
   |>> | RS-232 |  Pins 2 & 3   |  Pins 2 & 3   |  Pins 2 & 3   |
   |   |        |    closed     |    closed     |    closed     |
   |---+--------+---------------+---------------+---------------|
   |   | RS-422 |  Pins 1 & 2   |  Pins 1 & 2   |  Pins 1 & 2   |
   |   |        |    closed     |    closed     |    closed     |
   +------------------------------------------------------------+