DIAMOND FLOWER, INC.
====================

   DIO-200A

   Card Type          Multi I/O                                   
   Chipset/Controller National Semiconductor                      
   I/O Options        Game, parallel port, serial ports (2)       
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/C-D/50229-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Purpose        | Location |    Purpose    | Location |
   |----------------------+----------+---------------+----------|
   | External battery     |    J1    | Serial port 2 |    J4    |
   | connector            |          |               |          |
   |----------------------+----------+---------------+----------|
   | Serial port 1        |    J2    | Parallel port |    J5    |
   |----------------------+----------+---------------+----------|
   | Game port            |    J3    |               |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |  Port 1 (J4)  | Port 2 (J2)  | SW2/switch 2 | SW2/switch 3 |
   |---------------+--------------+--------------+--------------|
   |>> |   COM1    |     COM2     |      On      |     Off      |
   |---+-----------+--------------+--------------+--------------|
   |   |   COM2    |     COM3     |     Off      |      On      |
   |---+-----------+--------------+--------------+--------------|
   |   |   COM3    |     COM4     |      On      |      On      |
   |---+-----------+--------------+--------------+--------------|
   |   | Disabled  |   Disabled   |     Off      |     Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT INTERRUPT SELECTION               |
   |------------------------------------------------------------|
   |    Port 1 (J4)    |    SW1/switch 3    |   SW1/switch 4    |
   |-------------------+--------------------+-------------------|
   |>>   |    IRQ4     |         On         |        Off        |
   |-----+-------------+--------------------+-------------------|
   |     |    IRQ3     |        Off         |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT INTERRUPT SELECTION               |
   |------------------------------------------------------------|
   |    Port 2 (J2)    |    SW1/switch 1    |   SW1/switch 2    |
   |-------------------+--------------------+-------------------|
   |>>   |    IRQ3     |         On         |        Off        |
   |-----+-------------+--------------------+-------------------|
   |     |    IRQ4     |        Off         |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |       SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION         |
   |------------------------------------------------------------|
   |   Port 1    | Port 2  |        JP3         |      JP2      |
   |-------------+---------+--------------------+---------------|
   |>> | Normal  | Normal  | Pins 1 & 2, 4 & 5, | Pins 1 & 2, 4 |
   |   |         |         |    7 & 8 closed    |  & 5, 7 & 8   |
   |   |         |         |                    |    closed     |
   |---+---------+---------+--------------------+---------------|
   |   | Forced  | Forced  | Pins 2 & 3, 5 & 6, | Pins 2 & 3, 5 |
   |   |  True   |  True   |    8 & 9 closed    |  & 6, 8 & 9   |
   |   |         |         |                    |    closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            SERIAL PORT'S DTE/DCE CONFIGURATION             |
   |------------------------------------------------------------|
   |   Primary serial port J4    |   Secondary serial port J2   |
   |-----------------------------+------------------------------|
   |         Jumper JP4          |          Jumper JP1          |
   |                             |                              |
<gopher://bitreich.org/I/th99/i/C-D/50229-2.png>
   |                     | [3][IMG]                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  PARALLEL PORT SETTINGS                    |
   |------------------------------------------------------------|
   |            LPT             |         SW2/switch 1          |
   |----------------------------+-------------------------------|
   |>>  |           1           |              Off              |
   |----+-----------------------+-------------------------------|
   |    |           2           |              On               |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 PARALLEL PORT INTERRUPTS                   |
   |------------------------------------------------------------|
   |       IRQ        |    SW1/switch 5    |    SW1/switch 6    |
   |------------------+--------------------+--------------------|
   |>> |     IRQ7     |        Off         |         On         |
   |---+--------------+--------------------+--------------------|
   |   |     IRQ5     |         On         |        Off         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CLOCK CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Clock             |        SW2/switch 4         |
   |------------------------------+-----------------------------|
   |>> |         Enabled          |             On              |
   |---+--------------------------+-----------------------------|
   |   |         Disabled         |             Off             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CLOCK INTERRUPT SELECT                    |
   |------------------------------------------------------------|
   |            IRQ             | SW2/switch 7  | SW2/switch 8  |
   |----------------------------+---------------+---------------|
   |>> |           2            |      Off      |      On       |
   |---+------------------------+---------------+---------------|
   |   |           5            |      On       |      Off      |
   +------------------------------------------------------------+