TTC COMPUTER PRODUCTS
=====================

   MP-005

   Card Type          Parallel card                               
   Chipset/Controller National Semiconductor                      
   I/O Options        Parallel ports (2)                          
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/S-T/50318-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Parallel port 1   |    J1    | Parallel port 2  |    J2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PRIMARY PORT I/O ADDRESS SELECT               |
   |------------------------------------------------------------|
   |          Address           |              JP2              |
   |----------------------------+-------------------------------|
   |>>  |         378h          |       Pins 1 & 2 closed       |
   |----+-----------------------+-------------------------------|
   |    |         3BCh          |       Pins 3 & 4 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SECONDARY PORT I/O ADDRESS SELECT              |
   |------------------------------------------------------------|
   |          Address           |              JP2              |
   |----------------------------+-------------------------------|
   |>>   |         278h         |       Pins 7 & 8 closed       |
   |-----+----------------------+-------------------------------|
   |     |         3BCh         |       Pins 5 & 6 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           PRIMARY PARALLEL PORT INTERRUPT SELECT           |
   |------------------------------------------------------------|
   |            IRQ             |              JP1              |
   |----------------------------+-------------------------------|
   |>>     |        IRQ7        |       Pins 5 & 6 closed       |
   |-------+--------------------+-------------------------------|
   |       |        IRQ5        |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          SECONDARY PARALLEL PORT INTERRUPT SELECT          |
   |------------------------------------------------------------|
   |            IRQ             |              JP1              |
   |----------------------------+-------------------------------|
   |>>     |        IRQ5        |       Pins 3 & 4 closed       |
   |-------+--------------------+-------------------------------|
   |       |        IRQ7        |       Pins 7 & 8 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         PRIMARY PARALLEL PORT I/O DIRECTION SELECT         |
   |------------------------------------------------------------|
   |                Mode                |          JP4          |
   |------------------------------------+-----------------------|
   |>>         |         Output         |        Closed         |
   |-----------+------------------------+-----------------------|
   |           |         Input          |         Open          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |        SECONDARY PARALLEL PORT I/O DIRECTION SELECT        |
   |------------------------------------------------------------|
   |                Mode                |          JP3          |
   |------------------------------------+-----------------------|
   |>>          |        Output         |        Closed         |
   |------------+-----------------------+-----------------------|
   |            |         Input         |         Open          |
   +------------------------------------------------------------+