DECISION COMPUTER INTERNATIONAL CO., LTD.
=========================================

   PCCOM 16-BIT ISA 8-PORT RS-232/422 (OLD)

   Card Type         Serial                                       
   Chipset           GoldStar                                     
   I/O Options       Serial ports (8)                             
   Data Bus          16-bit ISA                                   

<gopher://bitreich.org/I/th99/i/C-D/52584-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Function       | Label  |      Function       | Label |
   |---------------------+--------+---------------------+-------|
   | Serial ports via    |   J1   | Daisy chain         |  JP1  |
   | DB-78 port          |        | connector (see      |       |
   |                     |        | pinout below)       |       |
   |------------------------------------------------------------|
   |      Note:Standard DB-25 serial ports are provided on an   |
   |      included adapter cable.                               |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         JP1 PINOUT                         |
   |------------------------------------------------------------|
   |       Function        | Pin |        Function        | Pin |
   |-----------------------+-----+------------------------+-----|
   | Daisy chain in        |  1  | Daisy chain out        |  3  |
   |-----------------------+-----+------------------------+-----|
   | Daisy chain in        |  2  | Daisy chain out        |  4  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                 | Label | Position  |
   |----------------------------------------+-------+-----------|
   |>> | Interrupt master                   |  JP3  |  Closed   |
   |---+------------------------------------+-------+-----------|
   |   | Interrupt slave                    |  JP3  |   Open    |
   |---+------------------------------------+-------+-----------|
   |>> | Factory configured - do not alter  | SW3/7 |    On     |
   |---+------------------------------------+-------+-----------|
   |>> | Interrupt vector enabled           | SW3/8 |    Off    |
   |---+------------------------------------+-------+-----------|
   |   | Interrupt vector disabled          | SW3/8 |    On     |
   |------------------------------------------------------------|
   |      Note:Only one board per system should be set to       |
   |      interrupt master.                                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      BASE I/O ADDRESS                      |
   |------------------------------------------------------------|
   |  Setting   |   SW1/1   |   SW1/2   |   SW1/3   |   SW1/4   |
   |------------+-----------+-----------+-----------+-----------|
   |    000h    |    On     |    On     |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    040h    |    On     |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    080h    |    On     |    On     |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    0C0h    |    On     |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    100h    |    On     |    Off    |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    140h    |    On     |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    180h    |    On     |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    1C0h    |    On     |    Off    |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    200h    |    Off    |    On     |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    240h    |    Off    |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    280h    |    Off    |    On     |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    2C0h    |    Off    |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    300h    |    Off    |    Off    |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    340h    |    Off    |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    380h    |    Off    |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    3C0h    |    Off    |    Off    |    Off    |    Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         INTERRUPT                          |
   |------------------------------------------------------------|
   |Setting|SW2/1 |SW2/2 |SW2/3 |SW2/4 |SW2/5 |SW2/6|SW2/7|SW2/8|
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ3  |  On  | Off  | Off  | Off  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ4  | Off  |  On  | Off  | Off  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ5  | Off  | Off  |  On  | Off  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ7  | Off  | Off  | Off  |  On  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ10 | Off  | Off  | Off  | Off  |  On  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ11 | Off  | Off  | Off  | Off  | Off  | On  | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ12 | Off  | Off  | Off  | Off  | Off  | Off | On  | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ15 | Off  | Off  | Off  | Off  | Off  | Off | Off | On  |
   |-------+------+------+------+------+------+-----+-----+-----|
   | Slave | Off  | Off  | Off  | Off  | Off  | Off | Off | Off |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      INTERRUPT VECTOR                      |
   |------------------------------------------------------------|
   | Setting | SW3/1  | SW3/2  | SW3/3  | SW3/4 | SW3/5 | SW3/6 |
   |---------+--------+--------+--------+-------+-------+-------|
   |  000h   |   On   |   On   |   On   |  On   |  On   |  On   |
   |---------+--------+--------+--------+-------+-------+-------|
   |  010h   |   On   |   On   |   On   |  On   |  On   |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  020h   |   On   |   On   |   On   |  On   |  Off  |  On   |
   |---------+--------+--------+--------+-------+-------+-------|
   |  030h   |   On   |   On   |   On   |  On   |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  040h   |   On   |   On   |   On   |  Off  |  On   |  On   |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3B0h   |  Off   |  Off   |  Off   |  On   |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3C0h   |  Off   |  Off   |  Off   |  Off  |  On   |  On   |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3D0h   |  Off   |  Off   |  Off   |  Off  |  On   |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3E0h   |  Off   |  Off   |  Off   |  Off  |  Off  |  On   |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3F0h   |  Off   |  Off   |  Off   |  Off  |  Off  |  Off  |
   |------------------------------------------------------------|
   |      Note:A total of 64 vector address settings are        |
   |      available. The switches are a binary representation   |
   |      of the decimal memory addresses. SW3/1 is the Most    |
   |      Significant Bit and switch SW3/6 is the Least         |
   |      Significant Bit. The switches have the following      |
   |      decimal values: SW3/1=512, SW3/2=256, SW3/3=128,      |
   |      SW3/4=64, SW3/5=32, SW3/6=16. Turn off the switches   |
   |      and add the values of the switches that are off to    |
   |      obtain the correct address. (Off=1, On=0)             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        WAIT STATES                         |
   |------------------------------------------------------------|
   |  Setting   |   JP4/A   |   JP4/B   |   JP4/C   |   JP4/D   |
   |------------+-----------+-----------+-----------+-----------|
   |     0      |  Closed   |   Open    |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |     1      |   Open    |  Closed   |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |     2      |   Open    |   Open    |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |     3      |   Open    |   Open    |   Open    |  Closed   |
   +------------------------------------------------------------+