EVEREX SYSTEMS, INC.
====================

   VITEX SUPER I/O CARD (EV-371)

   Card Type               Hard drive controller card             
   Hard drives supported   Two IDE(AT) interface drives           
   Floppy drives supported Two 360KB, 720KB, 1.2MB, 1.44MB drives 
   Data-bus                16-bit ISA                             
   Size                    Half-length, half-height card          

<gopher://bitreich.org/I/th99/c/E-H/21224-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | 40-pin IDE(AT)       |  JP1  | 10-pin serial port  | JP11  |
   | interface connector  |       | 2 - internal        |       |
   |----------------------+-------+---------------------+-------|
   | 34-pin control cable |  JP9  | 9-pin serial port 1 | JP12  |
   | connector - floppy   |       | - external          |       |
   | drive                |       |                     |       |
   |----------------------+-------+---------------------+-------|
   | 16-pin game port -   | JP10  | 25-pin parallel     | JP13  |
   | internal             |       | port - external     |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               USER CONFIGURABLE CONNECTIONS                |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | Printer is unidirectional      |   JP4    |   Closed   |
   |---+--------------------------------+----------+------------|
   |   | Printer is bi-directional      |   JP4    |    Open    |
   |---+--------------------------------+----------+------------|
   |>> | Hard drive I/O address is      |  JP7/1   | Pins 1 & 2 |
   |   | 376-377h, 170-177h             |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Hard drive I/O address is      |  JP7/1   | Pins 2 & 3 |
   |   | 3F6-3F7h, 1F0-1F7h             |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive order is normal   |  JP7/2   | Pins 2 & 3 |
   |   | (A:, B)                        |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive order is reversed |  JP7/2   | Pins 1 & 2 |
   |   | (B:, A)                        |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive I/O address is    |  JP7/3   | Pins 1 & 2 |
   |   | 3F0-3F7h                       |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive I/O address is    |  JP7/3   | Pins 2 & 3 |
   |   | 370-377h                       |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Hard drive interface enabled   |  JP7/4   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Hard drive interface disabled  |  JP7/4   | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive interface enabled |  JP7/5   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive interface         |  JP7/5   | Pins 1 & 2 |
   |   | disabled                       |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | IDE(AT) interface enabled      |  JP7/6   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IDE(XT) interface enabled      |  JP7/6   | Pins 1 & 2 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 1 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP6/1        |       JP6/2        |
   |------------------+--------------------+--------------------|
   |>> | COM1 (3F8h)  | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM3 (3E8h)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM4 (2E8h)  | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 2 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP6/3        |       JP6/4        |
   |------------------+--------------------+--------------------|
   |   COM2 (2F8h)    | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |   COM3 (3E8h)    | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |   COM4 (2E8h)    | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP6/5        |       JP6/6        |
   |------------------+--------------------+--------------------|
   |   LPT1 (378h)    | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |   LPT2 (278h)    | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |   LPT3 (3BCh)    | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |      IRQ       |    JP8/1     |    JP8/2     |    JP8/3    |
   |----------------+--------------+--------------+-------------|
   |   |    IRQ3    |     Open     |    Closed    |    Open     |
   |---+------------+--------------+--------------+-------------|
   |>> |    IRQ4    |    Closed    |     Open     |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    IRQ5    |     Open     |     Open     |   Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |      IRQ       |    JP8/4     |    JP8/5     |    JP8/6    |
   |----------------+--------------+--------------+-------------|
   |>> |    IRQ3    |    Closed    |     Open     |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    IRQ4    |     Open     |    Closed    |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    IRQ5    |     Open     |     Open     |   Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |          IRQ          |      JP8/7       |      JP8/8      |
   |-----------------------+------------------+-----------------|
   |     |      IRQ5       |       Open       |     Closed      |
   |-----+-----------------+------------------+-----------------|
   |>>   |      IRQ7       |      Closed      |      Open       |
   +------------------------------------------------------------+