PERCEPTIVE SOLUTIONS, INC.
==========================

   1200SX DATASHADOW SCSI CONTROLLER

   Card Type     Floppy drive controller, Hard drive controller   
                 card                                             
   Hard Drives   Up to 7 SCSI devices                             
   supported     
   Floppy drives Two 360KB, 720KB, 1.2MB, or 1.44MB drives        
   supported     
   Data Bus      16-bit ISA                                       
   Card Size     Three-quarter length, full-height card           

<gopher://bitreich.org/I/th99/c/P-R/21670-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Function      | Location |     Function     | Location |
   |-------------------+----------+------------------+----------|
   | 4-pin connector - |   CN1    | 34-pin cable     |   CN3    |
   | drive active LED  |          | connector -      |          |
   |                   |          | floppy drive     |          |
   |-------------------+----------+------------------+----------|
   | 50-pin SCSI       |   CN2    | 50-pin SCSI      |   CN4    |
   | connector -       |          | connector -      |          |
   | internal          |          | external         |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Function                | Label | Position  |
   |----------------------------------------+-------+-----------|
   |>> | SCSI termination enabled           | SW1/A |    On     |
   |---+------------------------------------+-------+-----------|
   |   | SCSI termination disabled          | SW1/A |    Off    |
   |---+------------------------------------+-------+-----------|
   |>> | HSOS load enabled                  | SW1/B |    Off    |
   |---+------------------------------------+-------+-----------|
   |   | HSOS load disabled                 | SW1/B |    On     |
   |---+------------------------------------+-------+-----------|
   |>> | Floppy motor speed                 | SW1/C |    Off    |
   |---+------------------------------------+-------+-----------|
   |>> | Floppy drive enable                | SW1/F |    Off    |
   |---+------------------------------------+-------+-----------|
   |   | Floppy drive disable               | SW1/F |    On     |
   |---+------------------------------------+-------+-----------|
   |>> | Port address is 37x-3Fxh           | SW1/G |    Off    |
   |---+------------------------------------+-------+-----------|
   |   | Port address is 17x-37xh           | SW1/G |    On     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |     Interrupt      |       SW1/C       |       SW1/D       |
   |--------------------+-------------------+-------------------|
   |       IRQ14        |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |       IRQ15        |        Off        |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   BIOS ADDRESS SELECTION                   |
   |------------------------------------------------------------|
   |    Address    |    SW1/H     |    SW1/I     |    SW1/J     |
   |---------------+--------------+--------------+--------------|
   |     CA00h     |      On      |     Off      |     Off      |
   |---------------+--------------+--------------+--------------|
   |     C800h     |      On      |     Off      |      On      |
   |---------------+--------------+--------------+--------------|
   |     D000h     |     Off      |     Off      |     Off      |
   |---------------+--------------+--------------+--------------|
   |     D400h     |     Off      |      On      |      On      |
   |---------------+--------------+--------------+--------------|
   |     D800h     |     Off      |      On      |     Off      |
   |---------------+--------------+--------------+--------------|
   |     DA00h     |     Off      |     Off      |      On      |
   |---------------+--------------+--------------+--------------|
   | BIOS disabled |      On      |      On      |      On      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      512KB       |   (2) 256KB x 9    |        None        |
   |------------------+--------------------+--------------------|
   |       1MB        |   (2) 256KB x 9    |   (2) 256KB x 9    |
   |------------------+--------------------+--------------------|
   |       2MB        |    (2) 1MB x 9     |        None        |
   |------------------+--------------------+--------------------|
   |       4MB        |    (2) 1MB x 9     |    (2) 1MB x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |    (2) 4MB x 9     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 4MB x 9     |    (2) 4MB x 9     |
   +------------------------------------------------------------+