UNIDENTIFIED
============

   VL-BUS SUPER I/O (NO. 373)

   Chipset              Winbond                                   
   Data Bus             32-bit VESA local bus                     
   Card Size            Half height, full length                  
   Hard Drives          Four IDE(AT) devices                      
   Supported            
   Floppy Drives        Two 360KB, 720KB, 1.2MB, or 1.44MB drives 
   Supported            

<gopher://bitreich.org/I/th99/c/U-Z/21362-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | 40-pin primary       |  J1   | 9-pin serial port 1 |  J5   |
   | IDE(AT) connector    |       | - external          |       |
   |----------------------+-------+---------------------+-------|
   | 40-pin secondary     |  J2   | 10-pin serial port  |  J6   |
   | IDE(AT) connector    |       | 2 - internal        |       |
   |----------------------+-------+---------------------+-------|
   | 34-pin cable         |  J3   | 25-pin parallel     |  J7   |
   | connector - floppy   |       | port - external     |       |
   | drive                |       |                     |       |
   |----------------------+-------+---------------------+-------|
   | 16-pin game port     |  J4   | 2-pin drive active  | LED1  |
   |                      |       | LED                 |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                 | Label | Position  |
   |----------------------------------------+-------+-----------|
   |>> | VESA local bus speed is 50MHz      |  JP1  | Pins 1 &  |
   |   |                                    |       | 2 closed  |
   |---+------------------------------------+-------+-----------|
   |   | VESA local bus speed is 33MHz      |  JP1  | Pins 2 &  |
   |   |                                    |       | 3 closed  |
   |---+------------------------------------+-------+-----------|
   |>> | IDE(AT) interface enabled          |  JP1  | Pins 4 &  |
   |   |                                    |       | 5 closed  |
   |---+------------------------------------+-------+-----------|
   |   | IDE(AT) interface disabled         |  JP1  | Pins 5 &  |
   |   |                                    |       | 6 closed  |
   |---+------------------------------------+-------+-----------|
   |>> | Floppy drive order is normal (A:,  |  JP2  | Pins 1 &  |
   |   | B:)                                |       | 2 closed  |
   |---+------------------------------------+-------+-----------|
   |   | Floppy drive order is reversed     |  JP2  | Pins 2 &  |
   |   | (B:, A:)                           |       | 3 closed  |
   |---+------------------------------------+-------+-----------|
   |>> | Floppy drive interface enabled     |  JP2  | Pins 4 &  |
   |   |                                    |       | 5 closed  |
   |---+------------------------------------+-------+-----------|
   |   | Floppy drive interface disabled    |  JP2  | Pins 5 &  |
   |   |                                    |       | 6 closed  |
   |---+------------------------------------+-------+-----------|
   |>> | IDE(AT) secondary IOCHRDY signal   |  JP3  |  Closed   |
   |   | enabled                            |       |           |
   |---+------------------------------------+-------+-----------|
   |   | IDE(AT) secondary IOCHRDY signal   |  JP3  |   Open    |
   |   | disabled                           |       |           |
   |---+------------------------------------+-------+-----------|
   |>> | IDE(AT) primary IOCHRDY signal     |  JP4  |  Closed   |
   |   | enabled                            |       |           |
   |---+------------------------------------+-------+-----------|
   |   | IDE(AT) primary IOCHRDY signal     |  JP4  |   Open    |
   |   | disabled                           |       |           |
   |---+------------------------------------+-------+-----------|
   |>> | Parallel port is unidirectional    |  JP7  |  Closed   |
   |---+------------------------------------+-------+-----------|
   |   | Parallel port is bidirectional     |  JP7  |   Open    |
   |---+------------------------------------+-------+-----------|
   |>> | Game port enabled                  |  JP8  |  Closed   |
   |---+------------------------------------+-------+-----------|
   |   | Game port disabled                 |  JP8  |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 1 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP5/A        |       JP5/B        |
   |------------------+--------------------+--------------------|
   |   3F8h (COM1:)   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |   3E8h (COM3:)   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 2 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP5/C        |       JP5/D        |
   |------------------+--------------------+--------------------|
   |   2F8h (COM2:)   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |   2E8h (COM4:)   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |       JP5/E        |       JP5/F        |
   |------------------+--------------------+--------------------|
   |       3BCh       | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       378h       | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       278h       | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |          Setting           |              JP7              |
   |----------------------------+-------------------------------|
   |            IRQ5            |       Pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |            IRQ7            |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+