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

   CI-91 (SMD)

   Card Type            Hard drive controller                     
   Hard Drives          Two IDE (AT/XT) drives                    
   supported            
   Floppy drives        Two 360KB, 720KB, 1.2MB, or 1.44MB drives 
   supported            
   Data Bus             16-bit ISA                                
   Card Size            Half-length, full-height                  
                                                                  

<gopher://bitreich.org/I/th99/c/U-Z/21436-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        | Label |      Function      | Label |
   |-----------------------+-------+--------------------+-------|
   | 9-pin serial port 1 - |  J1   | 10-pin serial port |  JP4  |
   | external              |       | 2 - internal       |       |
   |-----------------------+-------+--------------------+-------|
   | 25-pin parallel port  |  J2   | 4-pin connector -  |  JP5  |
   | - external            |       | drive active LED   |       |
   |-----------------------+-------+--------------------+-------|
   | 40-pin IDE(AT)        |  JP1  | 16-pin game port   |  JP6  |
   | connector             |       |                    |       |
   |-----------------------+-------+--------------------+-------|
   | 34-pin cable          |  JP3  |                    |       |
   | connector - floppy    |       |                    |       |
   | drive                 |       |                    |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   | Single hard drive connected to        |  JP2  |   Closed   |
   | controller                            |       |            |
   |---------------------------------------+-------+------------|
   | Two hard drives connected to          |  JP2  |    Open    |
   | controller                            |       |            |
   |---------------------------------------+-------+------------|
   | PC/XT mode enabled                    | JP13  | Pins 1 & 2 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | PC/AT mode enabled                    | JP13  | Pins 2 & 3 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | Floppy drive interface enabled        | JP14  | Pins 2 & 3 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | Floppy drive interface disabled       | JP14  | Pins 1 & 2 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | IDE(AT) interface address is 316h,    | JP15  | Pins 1 & 2 |
   | 317h, 110h                            |       |   closed   |
   |---------------------------------------+-------+------------|
   | IDE(AT) interface address is 376h,    | JP15  | Pins 2 & 3 |
   | 377h, 170h                            |       |   closed   |
   |---------------------------------------+-------+------------|
   | IDE(AT) interface enabled             | JP16  | Pins 2 & 3 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | IDE(AT) interface disabled            | JP16  | Pins 1 & 2 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | Floppy drive order is normal (A:, B:) | JP17  | Pins 2 & 3 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | Floppy drive order is reversed (B:,   | JP17  | Pins 1 & 2 |
   | A:)                                   |       |   closed   |
   |---------------------------------------+-------+------------|
   | Floppy drive address is 3F0h          | JP18  | Pins 1 & 2 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | Floppy drive address is 370h          | JP18  | Pins 2 & 3 |
   |                                       |       |   closed   |
   |---------------------------------------+-------+------------|
   | Parallel port is uni-directional      | JP20  |   Closed   |
   |---------------------------------------+-------+------------|
   | Parallel port is bi-directional       | JP20  |    Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |        JP11        |        JP12        |
   |------------------+--------------------+--------------------|
   |   LPT1 (378h)    | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |   LPT2 (278h)    | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |   LPT3 (3BCh)    | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 1 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |     Setting      |        JP7         |        JP8         |
   |------------------+--------------------+--------------------|
   |   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      |        JP9         |        JP10        |
   |------------------+--------------------+--------------------|
   |   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  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |     IRQ      |    JP19/1     |    JP19/2    |    JP19/3    |
   |--------------+---------------+--------------+--------------|
   |     IRQ3     |     Open      |    Closed    |     Open     |
   |--------------+---------------+--------------+--------------|
   |     IRQ4     |    Closed     |     Open     |     Open     |
   |--------------+---------------+--------------+--------------|
   |     IRQ5     |     Open      |     Open     |    Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |     IRQ      |    JP19/4     |    JP19/5    |    JP19/6    |
   |--------------+---------------+--------------+--------------|
   |     IRQ3     |    Closed     |     Open     |     Open     |
   |--------------+---------------+--------------+--------------|
   |     IRQ4     |     Open      |    Closed    |     Open     |
   |--------------+---------------+--------------+--------------|
   |     IRQ5     |     Open      |     Open     |    Closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |        IRQ        |       JP19/7       |      JP19/8       |
   |-------------------+--------------------+-------------------|
   |       IRQ5        |        Open        |      Closed       |
   |-------------------+--------------------+-------------------|
   |       IRQ7        |       Closed       |       Open        |
   +------------------------------------------------------------+