VIVA COMPUTER COMPANY
=====================

   W757BF-556 REV. 1

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 16-bit, ISA                            |
   |-------------------+----------------------------------------|
   | Size:             | Half-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/U-Z/20392-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                    |  Location  |
   |-----------------------------------------------+------------|
   | 40-pin IDE(AT) Interface connector            |    JP1     |
   |-----------------------------------------------+------------|
   | 2-pin connector - Drive active LED            |    JP2     |
   |-----------------------------------------------+------------|
   | 34-pin control cable connector - floppy drive |    JP7     |
   |-----------------------------------------------+------------|
   | 15-pin game port - internal                   |    JP8     |
   |-----------------------------------------------+------------|
   | 10-pin serial port (COM2/3/4) - internal      |    JP9     |
   |-----------------------------------------------+------------|
   | 10-pin serial port (COM1/3/4) - external      |    JP10    |
   |-----------------------------------------------+------------|
   | 25-pin parallel port (LPT1/2/3) - external    |    JP11    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function            |   Location   |  Setting   |
   |--------------------------------+--------------+------------|
   |>> | Parallel port is           |     JP3      |   closed   |
   |   | uni-directional            |              |            |
   |---+----------------------------+--------------+------------|
   |   | Parallel port is           |     JP3      |    open    |
   |   | bi-directional             |              |            |
   |---+----------------------------+--------------+------------|
   |>> | Hard drive port address is | JP5/jumper 1 | pins 1 & 2 |
   |   | 1F0-1F7, 3F6 & 3F7h        |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Hard drive port address is | JP5/jumper 1 | pins 2 & 3 |
   |   | 170-177, 376 & 377h        |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Floppy drive port address  | JP5/jumper 2 | pins 1 & 2 |
   |   | is 3F0-3F7h                |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Floppy drive port address  | JP5/jumper 2 | pins 2 & 3 |
   |   | is 370-377h                |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Floppy drive booting       | JP5/jumper 3 | pins 2 & 3 |
   |   | sequence A:/B:             |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Floppy drive booting       | JP5/jumper 3 | pins 1 & 2 |
   |   | sequence B:/A:             |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Hard drive enabled         | JP5/jumper 4 | pins 2 & 3 |
   |   |                            |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Hard drive disabled        | JP5/jumper 4 | pins 1 & 2 |
   |   |                            |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Floppy drive enabled       | JP5/jumper 5 | pins 2 & 3 |
   |   |                            |              |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Floppy drive disabled      | JP5/jumper 5 | pins 1 & 2 |
   |   |                            |              |   closed   |
   |---+----------------------------+--------------+------------|
   |>> | Game port enabled          |     JP12     |   closed   |
   |---+----------------------------+--------------+------------|
   |   | Game port disabled         |     JP12     |    open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |  Port 1 (JP10)   |    JP4/jumper 1    |    JP4/jumper 2    |
   |------------------+--------------------+--------------------|
   |>>  |    COM1     | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |----+-------------+--------------------+--------------------|
   |    |    COM3     | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |----+-------------+--------------------+--------------------|
   |    |    COM4     | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |----+-------------+--------------------+--------------------|
   |    |  Disabled   | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |   Port 2 (JP9)   |    JP4/jumper 3    |    JP4/jumper 6    |
   |------------------+--------------------+--------------------|
   |>> |     COM2     | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     COM3     | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     COM4     | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |       LPT        |    JP4/jumper 4    |    JP4/jumper 5    |
   |------------------+--------------------+--------------------|
   |>> |     LPT2     | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     LPT1     | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     LPT3     | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT INTERRUPT REQUEST                |
   |------------------------------------------------------------|
   | Port 1 (JP10) | JP6/jumper 1 | JP6/jumper 2 | JP6/jumper 3 |
   |---------------+--------------+--------------+--------------|
   |>>    |  IRQ4  |    Closed    |     Open     |     Open     |
   |------+--------+--------------+--------------+--------------|
   |      |  IRQ3  |     Open     |    Closed    |     Open     |
   |------+--------+--------------+--------------+--------------|
   |      |  IRQ5  |     Open     |     Open     |    Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT INTERRUPT REQUEST                |
   |------------------------------------------------------------|
   | Port 2 (JP9)  | JP6/jumper 4 | JP6/jumper 5 | JP6/jumper 6 |
   |---------------+--------------+--------------+--------------|
   |>>    |  IRQ3  |    Closed    |     Open     |     Open     |
   |------+--------+--------------+--------------+--------------|
   |      |  IRQ4  |     Open     |    Closed    |     Open     |
   |------+--------+--------------+--------------+--------------|
   |      |  IRQ5  |     Open     |     Open     |    Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT INTERRUPT REQUEST               |
   |------------------------------------------------------------|
   |       IRQ        |    JP6/jumper 7    |    JP6/jumper 8    |
   |------------------+--------------------+--------------------|
   |>> |     IRQ7     |       Closed       |        Open        |
   |---+--------------+--------------------+--------------------|
   |   |     IRQ5     |        Open        |       Closed       |
   +------------------------------------------------------------+