LAVA COMPUTER MFG, INC.
=======================

   LAVA DSERIAL

   Card Type          Serial                                      
   Chipset Controller 16450/16550 UART                            
   I/O Options        Serial port (2)                             
   Maximum Dram       N/A                                         

<gopher://bitreich.org/I/th99/i/I-L/50602-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |    Purpose    |   Location   |    Purpose    |  Location   |
   |---------------+--------------+---------------+-------------|
   | Serial port 1 |     CN1      | Serial port 2 |     CN2     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 1 CONFIGURATION                 |
   |------------------------------------------------------------|
   |      COM       |        JP1/A        |        JP1/B        |
   |----------------+---------------------+---------------------|
   |      COM1      |  Pins 2 & 3 closed  |      All open       |
   |----------------+---------------------+---------------------|
   |      COM2      |  Pins 1 & 2 closed  |      All open       |
   |----------------+---------------------+---------------------|
   |      COM3      |      All open       |  Pins 2 & 3 closed  |
   |----------------+---------------------+---------------------|
   |      COM4      |      All open       |  Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 2 CONFIGURATION                 |
   |------------------------------------------------------------|
   |      COM       |        JP2/A        |        JP2/B        |
   |----------------+---------------------+---------------------|
   |      COM1      |  Pins 2 & 3 closed  |      All open       |
   |----------------+---------------------+---------------------|
   |      COM2      |  Pins 1 & 2 closed  |      All open       |
   |----------------+---------------------+---------------------|
   |      COM3      |      All open       |  Pins 2 & 3 closed  |
   |----------------+---------------------+---------------------|
   |      COM4      |      All open       |  Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT 1 INTERRUPT SELECT               |
   |------------------------------------------------------------|
   |          Setting           |              JP3              |
   |----------------------------+-------------------------------|
   |            IRQ4            |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            IRQ3            |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT 2 INTERRUPT SELECT               |
   |------------------------------------------------------------|
   |          Setting           |              JP3              |
   |----------------------------+-------------------------------|
   |            IRQ3            |       Pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |            IRQ4            |       Pins 4 & 5 closed       |
   +------------------------------------------------------------+