MODULAR CIRCUIT TECHNOLOGY
==========================

   MCT-IDEIO+

    Data bus:           16-bit ISA                                

    Size:               Three--quarter length, full-height card   

    Hard drive          Two IDE (AT) interface drives             
    supported:          

    Floppy drives       Two 360KB, 720KB, 1.2MB, or 1.44MB        
    supported:          drives                                    

<gopher://bitreich.org/I/th99/c/M-O/20734-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                  Function                   |   Location   |
   |---------------------------------------------+--------------|
   | 9-pin connector - serial port 1 - external  |     CN1      |
   |---------------------------------------------+--------------|
   | 25-pin connector - parallel port            |     CN2      |
   |---------------------------------------------+--------------|
   | 2-pin connector - drive active LED          |      J1      |
   |---------------------------------------------+--------------|
   | 34-pin connector - floppy drive interface   |      J2      |
   |---------------------------------------------+--------------|
   | 16-pin connector - game port                |      J3      |
   |---------------------------------------------+--------------|
   | 10-pin connector - serial port 2 - internal |      J4      |
   |---------------------------------------------+--------------|
   | 40-pin connector - IDE(AT) interface        |      J5      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> UART clock speed 1.8432MHZ       |   JP2    | Pins 2 & 3 |
   | select                             |          |   closed   |
   |------------------------------------+----------+------------|
   | UART clock speed 7.3728MHz select  |   JP2    | Pins 1 & 2 |
   |                                    |          |   closed   |
   |------------------------------------+----------+------------|
   |>> IDE(AT) interface enabled        |  JP3/A   |   Closed   |
   |------------------------------------+----------+------------|
   | IDE(AT) interface disabled         |  JP3/A   |    Open    |
   |------------------------------------+----------+------------|
   |>> Floppy drive interface enabled   |  JP3/B   |   Closed   |
   |------------------------------------+----------+------------|
   | Floppy drive interface disabled    |  JP3/B   |    Open    |
   |------------------------------------+----------+------------|
   |>> Game port enabled                |  JP3/C   |   Closed   |
   |------------------------------------+----------+------------|
   | Game port disabled                 |  JP3/C   |    Open    |
   |------------------------------------+----------+------------|
   |>> Parallel port is uni-directional |   JP6    |   Closed   |
   |------------------------------------+----------+------------|
   | Parallel port is bi-directional    |   JP6    |    Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |      LPT       |        JP3/D         |       JP3/E        |
   |----------------+----------------------+--------------------|
   |     >> LPT1     |        Closed        |        Open        |
   |----------------+----------------------+--------------------|
   |      LPT2      |         Open         |       Closed       |
   |----------------+----------------------+--------------------|
   |    Disabled    |         Open         |        Open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |      IRQ       |        JP4/A         |       JP4/B        |
   |----------------+----------------------+--------------------|
   |     >> IRQ7     |        Closed        |        Open        |
   |----------------+----------------------+--------------------|
   |      IRQ5      |         Open         |       Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PRIMARY SERIAL PORT CONFIGURATION              |
   |------------------------------------------------------------|
   |    COM     |   JP3/J   |   JP3/K   |   JP3/L   |   JP3/M   |
   |------------+-----------+-----------+-----------+-----------|
   |   >> COM1   |  Closed   |   Open    |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    COM2    |   Open    |   Open    |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    COM3    |   Open    |  Closed   |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    COM4    |   Open    |   Open    |   Open    |  Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            SECONDARY SERIAL PORT CONFIGURATION             |
   |------------------------------------------------------------|
   |    COM     |   JP3/F   |   JP3/G   |   JP3/H   |   JP3/I   |
   |------------+-----------+-----------+-----------+-----------|
   |   >> COM2   |   Open    |   Open    |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    COM1    |  Closed   |   Open    |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    COM3    |   Open    |  Closed   |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    COM4    |   Open    |   Open    |   Open    |  Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          PRIMARY SERIAL PORT INTERRUPT SELECTION           |
   |------------------------------------------------------------|
   |    IRQ     |   JP4/G   |   JP4/H   |   JP4/I   |   JP4/J   |
   |------------+-----------+-----------+-----------+-----------|
   |   >> IRQ4   |   Open    |  Closed   |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    IRQ2    |   Open    |   Open    |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |    IRQ3    |  Closed   |   Open    |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    IRQ5    |   Open    |   Open    |  Closed   |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         SECONDARY SERIAL PORT INTERRUPT SELECTION          |
   |------------------------------------------------------------|
   |    IRQ     |   JP4/C   |   JP4/D   |   JP4/E   |   JP4/F   |
   |------------+-----------+-----------+-----------+-----------|
   |   >> IRQ3   |  Closed   |   Open    |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    IRQ2    |   Open    |   Open    |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |    IRQ4    |   Open    |  Closed   |   Open    |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |    IRQ5    |   Open    |   Open    |  Closed   |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT DMA CONFIGURATION                |
   |------------------------------------------------------------|
   |           Setting           |     JP1/A     |    JP1/B     |
   |-----------------------------+---------------+--------------|
   |       >> DMA disabled        |     Open      |     Open     |
   |-----------------------------+---------------+--------------|
   |  Primary port DMA enabled   |    Closed     |     Open     |
   |-----------------------------+---------------+--------------|
   | Secondary port DMA enabled  |     Open      |    Closed    |
   |-----------------------------+---------------+--------------|
   |   Both ports DMA enabled    |    Closed     |    Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PRIMARY SERIAL PORT DMA SELECTION              |
   |------------------------------------------------------------|
   |    DMA     |     Mode     |              JP5               |
   |------------+--------------+--------------------------------|
   |    >> 1     |   Receive    |    Pins 3 & 4, 7 & 8 closed    |
   |------------+--------------+--------------------------------|
   |     3      |   Transmit   |    Pins 1 & 2, 5 & 6 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            SECONDARY SERIAL PORT DMA SELECTION             |
   |------------------------------------------------------------|
   |    DMA     |     Mode     |              JP5               |
   |------------+--------------+--------------------------------|
   |    >> 3     |   Receive    |  Pins 10 & 12, 13 & 14 closed  |
   |------------+--------------+--------------------------------|
   |     1      |   Transmit   |  Pins 9 & 11, 15 & 16 closed   |
   +------------------------------------------------------------+