NCL AMERICA
===========

   NCL527

   +------------------------------------------------------------+
   +------------------------------------------------------------+

   Data bus: 16-bit, ISA

   Size: Half-length, full-height card

   Hard Drives Suppported: Two AT Interface (IDE) drives

   Floppy Drives Supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
   drives

<gopher://bitreich.org/I/th99/c/M-O/20139-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                  Functions                   |  Location   |
   |----------------------------------------------+-------------|
   | 40-pin connector-IDE(AT) Interface           |     CN1     |
   |----------------------------------------------+-------------|
   | 34-pin data cable connector-floppy drive     |     CN2     |
   |----------------------------------------------+-------------|
   | 5-pin connector-DC power                     |     PWR     |
   |----------------------------------------------+-------------|
   | 4-pin connector-drive active LED             |     LED     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | IOCHRDY connected to CN1, Pin  |   JP1    | pins 1 & 2 |
   |   | 27                             |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IOCHRDY connected to CN1, Pin  |   JP1    | pins 2 & 3 |
   |   | 21                             |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IOCHRDY not connected          |   JP1    |    open    |
   |---+--------------------------------+----------+------------|
   |>> | IRQ14 connected directly to    |   JP3    | pins 2 & 3 |
   |   | bus                            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IRQ14 enabled by pin 39 high   |   JP3    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IRQ14 not connected to bus     |   JP3    |    open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRIVE PORT ADDRESS                     |
   |------------------------------------------------------------|
   |  Hard Drive   |   Floppy Drive   | JP2/pins 1 | JP2/pins 3 |
   |    Address    |     Address      |    & 2     |    & 4     |
   |---------------+------------------+------------+------------|
   |>> | 1F0-1F7h  |     3F0-3F7h     |    open    |    open    |
   |---+-----------+------------------+------------+------------|
   |   | 170-177h  |     370-377h     |    open    |   closed   |
   |---+-----------+------------------+------------+------------|
   |   | 1F0-1F7h  |     Disabled     |   closed   |   closed   |
   |---+-----------+------------------+------------+------------|
   |   | Disabled  |     3F0-3F7h     |   closed   |    open    |
   +------------------------------------------------------------+