TWINHEAD INTERNATIONAL CORPORATION
==================================

   CT-6280

   Card Type              Memory card                             
   Chip Set               Unidentified                            
   Maximum Onboard Memory 640KB                                   
   Data Bus               8-bit ISA                               

<gopher://bitreich.org/I/th99/i/S-T/53468-1.png>
   

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     | SW1/7 | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |   | Parity check enabled            | SW1/8 |      On      |
   |---+---------------------------------+-------+--------------|
   |   | Parity check disabled           | SW1/8 |     Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size     |      Bank 1      |   Bank 2    |   Bank 3    |
   |-------------+------------------+-------------+-------------|
   |     0KB     |       None       |    None     |    None     |
   |-------------+------------------+-------------+-------------|
   |    64KB     |       64KB       |    None     |    None     |
   |-------------+------------------+-------------+-------------|
   |    128KB    |       64KB       |    64KB     |    None     |
   |-------------+------------------+-------------+-------------|
   |    192KB    |       64KB       |    64KB     |    64KB     |
   |-------------+------------------+-------------+-------------|
   |    256KB    |      256KB       |    None     |    None     |
   |-------------+------------------+-------------+-------------|
   |    320KB    |      256KB       |    64KB     |    None     |
   |-------------+------------------+-------------+-------------|
   |    384KB    |      256KB       |    64KB     |    64KB     |
   |-------------+------------------+-------------+-------------|
   |    448KB    |      256KB       |    256KB    |    None     |
   |-------------+------------------+-------------+-------------|
   |    512KB    |      256KB       |    256KB    |    None     |
   |-------------+------------------+-------------+-------------|
   |    576KB    |      256KB       |    256KB    |    64KB     |
   |-------------+------------------+-------------+-------------|
   |    640KB    |      256KB       |    256KB    |    256KB    |
   |------------------------------------------------------------|
   | Note: It is recommended that 4164 or 4125 RAM chips of     |
   | 150ns or faster be used.                                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   |    Size    |   SW1/3   |   SW1/4   |   SW1/5   |   SW1/6   |
   |------------+-----------+-----------+-----------+-----------|
   |    0KB     |    Off    |    Off    |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |    64KB    |    On     |    Off    |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   128KB    |    Off    |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   192KB    |    On     |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   256KB    |    Off    |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   320KB    |    On     |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   384KB    |    Off    |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   448KB    |    On     |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   512KB    |    Off    |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |   576KB    |    On     |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |   640KB    |    Off    |    On     |    Off    |    On     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 STARTING ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |      Address       |       SW1/1       |       SW1/2       |
   |--------------------+-------------------+-------------------|
   |    00000h (0KB)    |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |   10000h (64KB)    |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |   20000h (128KB)   |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |   40000h (256KB)   |        On         |        On         |
   +------------------------------------------------------------+