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

   AT BUS/FLOPPY DISK CONTROLLER

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | 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/U-Z/20488-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                    |  Location  |
   |-----------------------------------------------+------------|
   | 40-pin IDE (AT) interface connector           |     J1     |
   |-----------------------------------------------+------------|
   | 34-pin control cable connector - floppy drive |     J4     |
   |-----------------------------------------------+------------|
   | 4-pin connector - drive active LED            |     J6     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           >> Function             |   Location    | Setting |
   |----------------------------------+---------------+---------|
   |>> | IRQ14 enabled                | J2/pins 2 & 3 | closed  |
   |---+------------------------------+---------------+---------|
   |   | XIRQ14 enabled               | J2/pins 1 & 2 | closed  |
   |---+------------------------------+---------------+---------|
   |>> | Factory configured - do not  |      J3       |   N/A   |
   |   | alter                        |               |         |
   |---+------------------------------+---------------+---------|
   |>> | Factory setting              | J7/pins 2 & 3 | closed  |
   |---+------------------------------+---------------+---------|
   |   | Two speed spindle type drive | J7/pins 1 & 2 | closed  |
   |---+------------------------------+---------------+---------|
   |>> | Hard drive enabled           | J8/pins 1 & 2 | closed  |
   |---+------------------------------+---------------+---------|
   |   | Hard drive disabled          | J8/pins 2 & 3 | closed  |
   +------------------------------------------------------------+