SONY CORPORATION
================

   CDB-231

   Card Type               CD-ROM host card                       
   Chip Set                Unidentified                           
   Maximum Onboard Memory  None                                   
   I/O Options             Host bus connector (2)                 
   Data Bus                8-bit ISA                              
   Floppy drives supported None                                   

<gopher://bitreich.org/I/th99/i/S-T/52362-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function        | Label |     Function      | Label |
   |------------------------+-------+-------------------+-------|
   | Internal host bus      |  CN1  | External host bus |  CN2  |
   | connector              |       | connector         |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |Setting |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
   |--------+------+------+------+------+-----+-----+-----+-----|
   |  |000h |  On  |  On  |  On  |  On  | On  | On  | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |004h | Off  |  On  |  On  |  On  | On  | On  | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |008h |  On  | Off  |  On  |  On  | On  | On  | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |00Ch | Off  | Off  |  On  |  On  | On  | On  | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |010h |  On  |  On  | Off  |  On  | On  | On  | On  | On  |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |>> |340h |  On  |  On  |  On  |  On  | Off | On  | Off | Off |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3ECh | Off  | Off  |  On  | Off  | Off | Off | Off | Off |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3F0h |  On  |  On  | Off  | Off  | Off | Off | Off | Off |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3F4h | Off  |  On  | Off  | Off  | Off | Off | Off | Off |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3F8h |  On  | Off  | Off  | Off  | Off | Off | Off | Off |
   |--+-----+------+------+------+------+-----+-----+-----+-----|
   |  |3FCh | Off  | Off  | Off  | Off  | Off | Off | Off | Off |
   |------------------------------------------------------------|
   |     Note:A total of 256 base address settings are          |
   |     available. The switches are a binary representation of |
   |     the decimal memory addresses. SW1/8 is the Most        |
   |     Significant Bit and switch SW1/1 is the Least          |
   |     Significant Bit. The switches have the following       |
   |     decimal values: SW1/8=512, SW1/7=256, SW1/6=128,       |
   |     SW1/5=64, SW1/4=32, SW1/3=16, SW1/2=8, SW1/1=4. Turn   |
   |     off the switches and add the values of the switches to |
   |     obtain the correct memory address. (Off=1, On=0)       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |    IRQ    | SW2/1  | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 |
   |-----------+--------+-------+-------+-------+-------+-------|
   |   |   2   |   On   |  Off  |  Off  |  Off  |  Off  |  Off  |
   |---+-------+--------+-------+-------+-------+-------+-------|
   |   |   3   |  Off   |  On   |  Off  |  Off  |  Off  |  Off  |
   |---+-------+--------+-------+-------+-------+-------+-------|
   |   |   4   |  Off   |  Off  |  On   |  Off  |  Off  |  Off  |
   |---+-------+--------+-------+-------+-------+-------+-------|
   |   |   5   |  Off   |  Off  |  Off  |  On   |  Off  |  Off  |
   |---+-------+--------+-------+-------+-------+-------+-------|
   |>> | None  |  Off   |  Off  |  Off  |  Off  |  Off  |  Off  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   |  Channel  | SW3/1  | SW3/2 | SW3/3 | SW3/4 | SW3/5 | SW3/6 |
   |-----------+--------+-------+-------+-------+-------+-------|
   |   |   1   |   On   |  Off  |  Off  |  On   |  Off  |  Off  |
   |---+-------+--------+-------+-------+-------+-------+-------|
   |   |   2   |  Off   |  On   |  Off  |  Off  |  On   |  Off  |
   |---+-------+--------+-------+-------+-------+-------+-------|
   |   |   3   |  Off   |  Off  |  On   |  Off  |  Off  |  On   |
   |---+-------+--------+-------+-------+-------+-------+-------|
   |>> | None  |  Off   |  Off  |  Off  |  Off  |  Off  |  Off  |
   +------------------------------------------------------------+