MOTOROLA, INC.
==============

   NLXP55

   Device Type      Mainboard                                     
   Processor        Pentium MMX                                   
   Processor Speed  233/266/300MHz                                
   Chip Set         Intel 430HX                                   
   Video Chip Set   Cirrus Logic                                  
   Maximum Onboard  256MB (EDO supported)                         
   Memory           
   Maximum Video    Unidentified                                  
   Memory           
   Cache            512KB                                         
   BIOS             Unidentified                                  
   Dimensions       284mm x 229mm                                 
   I/O Options      Ethernet 10BaseT connector, floppy drive      
                    interface, parallel port, PS/2 mouse port,    
                    serial ports (2), VGA feature connector, VGA  
                    port, USB connector, line in, line out,       
                    microphone in                                 

<gopher://bitreich.org/I/th99/m/M-O/35895-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | Line out           |    J1    | VMI host port   |   J25    |
   |                    |          | connector       |          |
   |--------------------+----------+-----------------+----------|
   | Line in            |    J2    | PS/2 mouse port |   J27    |
   |--------------------+----------+-----------------+----------|
   | Microphone in      |    J3    | VGA feature     |   J28    |
   |                    |          | connector       |          |
   |--------------------+----------+-----------------+----------|
   | CompactFlash       |    J5    | PCI debug       |   J32    |
   | connector          |          | connector       |          |
   |--------------------+----------+-----------------+----------|
   | Auxiliary          |    J8    | Parallel port   |   J33A   |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Ethernet 10BaseT   |    J9    | VGA port        |   J33B   |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | USB connector      |   J14    | Serial port 1   |   J33C   |
   |--------------------+----------+-----------------+----------|
   | Serial port 2      |   J18    | PCI debug       |   J34    |
   |                    |          | connector       |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | CompactFlash device select      |  J4   |    Closed    |
   |   | master                          |       |              |
   |---+---------------------------------+-------+--------------|
   |   | CompactFlash device select      |  J4   |     Open     |
   |   | slave                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Battery not installed           |  J6   |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Battery installed               |  J6   |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Speaker tone enabled            |  J7   |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | NLX modem tone enabled          |  J7   |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | GIO2 signal enabled             |  J10  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | GIO2 signal disabled            |  J10  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |>> | CMOS memory normal operation    |  J12  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | CMOS memory clear               |  J12  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Speaker enabled                 |  J13  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |   | Speaker disabled                |  J13  |     Open     |
   |---+---------------------------------+-------+--------------|
   |>> | GIO0 signal enabled             |  J15  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | GIO0 signal disabled            |  J15  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Boot block write protect        |  J16  |  Pins 2 & 3  |
   |   | disabled                        |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Boot block write protect        |  J16  |  Pins 1 & 2  |
   |   | enabled                         |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Flash BIOS write protect        |  J17  |     Open     |
   |   | disabled                        |       |              |
   |---+---------------------------------+-------+--------------|
   |   | Flash BIOS write protect        |  J17  |    Closed    |
   |   | enabled                         |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Standard PC tone enabled        |  J20  | Pins 3 & 5,  |
   |   |                                 |       | 4 & 6 closed |
   |---+---------------------------------+-------+--------------|
   |   | Tone from audio IC enabled      |  J20  | Pins 1 & 3,  |
   |   |                                 |       | 2 & 4 closed |
   |---+---------------------------------+-------+--------------|
   |>> | Watchdog timer disabled         |  J26  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | Watchdog timer enabled          |  J26  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |>> | On board video enabled          |  J29  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | On board video disabled         |  J29  |    Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             USER CONFIGURABLE SETTINGS (CON'T)             |
   |------------------------------------------------------------|
   |               Function               |  Label  | Position  |
   |--------------------------------------+---------+-----------|
   |>> | Video port device not installed  |   J30   |   Open    |
   |---+----------------------------------+---------+-----------|
   |   | Video port device installed      |   J30   |  Closed   |
   |---+----------------------------------+---------+-----------|
   |>> | VGA feature connector enabled    |   J31   |  Closed   |
   |---+----------------------------------+---------+-----------|
   |   | VGA feature connector disabled   |   J31   |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       8MB        |    (1) 1M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 2M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 1M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (1) 2M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 4M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 2M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (1) 4M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (1) 4M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (1) 8M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       64MB       |    (1) 4M x 64     |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (1) 8M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (1) 8M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       96MB       |    (1) 8M x 64     |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (1) 16M x 64    |        None        |
   |------------------+--------------------+--------------------|
   |      128MB       |    (1) 8M x 64     |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      136MB       |    (1) 16M x 64    |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |      144MB       |    (1) 16M x 64    |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |      160MB       |    (1) 16M x 64    |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |      192MB       |    (1) 16M x 64    |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      256MB       |    (1) 16M x 64    |    (1) 16M x 64    |
   |------------------------------------------------------------|
   | Note: Board accepts EDO memory.                            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: The location of the cache is unidentified.           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VIDEO MEMORY CONFIGURATION                 |
   |------------------------------------------------------------|
   | Note: The location of the video memory is unidentified.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   |   CPU   |  Clock   | Multiplier |  J22   |  J23   |  J24   |
   |  speed  |  speed   |            |        |        |        |
   |---------+----------+------------+--------+--------+--------|
   | 233MHz  |  66MHz   |    3.5x    |  Open  |  Open  |  Open  |
   |---------+----------+------------+--------+--------+--------|
   | 266MHz  |  66MHz   |     4x     | Closed |  Open  | Closed |
   |---------+----------+------------+--------+--------+--------|
   | 300MHz  |  66MHz   |    4.5x    | Closed | Closed | Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU VOLTAGE SELECTION                    |
   |------------------------------------------------------------|
   |          Voltage           |              J11              |
   |----------------------------+-------------------------------|
   |   |          2.2v          |       Pins 3 & 4 closed       |
   |---+------------------------+-------------------------------|
   |>> |          2.8v          |       Pins 7 & 8 closed       |
   +------------------------------------------------------------+