IRWIN
=====

   SC402

   Card Type               Tape drive controller                  
   Hard Drives supported   None                                   
   Floppy drives supported None                                   
   Data Bus                8-bit ISA                              
   Card Size               Half-length, full-height               

<gopher://bitreich.org/I/th99/i/I-L/53123-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |          Function           | Label |   Function   | Label |
   |-----------------------------+-------+--------------+-------|
   | Tape drive interface -      |  J2   |  Tape drive  |  J3   |
   | external                    |       | interface -  |       |
   |                             |       |   internal   |       |
   |------------------------------------------------------------|
   |      Note:Exact number of pins for both interfaces is      |
   |      unidentified.                                         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Function                | Label  | Position |
   |----------------------------------------+--------+----------|
   |>> | Factory configured - do not alter  |  A/8   |  Closed  |
   |---+------------------------------------+--------+----------|
   |>> | Factory configured - do not alter  |  B/1   |   Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   | Channel |  C/1   |  C/2   |  C/3   | C2/1  | C2/2  | C2/3  |
   |---------+--------+--------+--------+-------+-------+-------|
   |>>  |  1  | Closed |  Open  |  Open  |Closed | Open  | Open  |
   |---+-----+--------+--------+--------+-------+-------+-------|
   |   |  2  |  Open  | Closed |  Open  | Open  |Closed | Open  |
   |---+-----+--------+--------+--------+-------+-------+-------|
   |   |  3  |  Open  |  Open  | Closed | Open  | Open  |Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |Address |  A/1  |  A/2  |  A/3  | A/4  | A/5  | A/6  | A/7  |
   |--------+-------+-------+-------+------+------+------+------|
   |  |100h |Closed |Closed |Closed |Closed|Closed| Open |Closed|
   |--+-----+-------+-------+-------+------+------+------+------|
   |>> |200h |Closed |Closed |Closed |Closed|Closed|Closed| Open |
   |--+-----+-------+-------+-------+------+------+------+------|
   |  |220h |Closed |Closed | Open  |Closed|Closed|Closed| Open |
   |--+-----+-------+-------+-------+------+------+------+------|
   |  |280h |Closed |Closed |Closed |Closed| Open |Closed| Open |
   |--+-----+-------+-------+-------+------+------+------+------|
   |  |300h |Closed |Closed |Closed |Closed|Closed| Open | Open |
   |--+-----+-------+-------+-------+------+------+------+------|
   |  |338h | Open  | Open  | Open  |Closed|Closed| Open | Open |
   |--+-----+-------+-------+-------+------+------+------+------|
   |  |350h |Closed | Open  |Closed | Open |Closed| Open | Open |
   |--+-----+-------+-------+-------+------+------+------+------|
   |  |360h |Closed |Closed | Open  | Open |Closed| Open | Open |
   |--+-----+-------+-------+-------+------+------+------+------|
   |  |370h |Closed | Open  | Open  | Open |Closed| Open | Open |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   | Setting |  B/2   |  B/3   |  B/4   |  B/5  |  B/6  |  B/7  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  | IRQ2 | Closed |  Open  |  Open  | Open  | Open  | Open  |
   |--+------+--------+--------+--------+-------+-------+-------|
   |>> | IRQ3 |  Open  | Closed |  Open  | Open  | Open  | Open  |
   |--+------+--------+--------+--------+-------+-------+-------|
   |  | IRQ4 |  Open  |  Open  | Closed | Open  | Open  | Open  |
   |--+------+--------+--------+--------+-------+-------+-------|
   |  | IRQ5 |  Open  |  Open  |  Open  |Closed | Open  | Open  |
   |--+------+--------+--------+--------+-------+-------+-------|
   |  | IRQ6 |  Open  |  Open  |  Open  | Open  |Closed | Open  |
   |--+------+--------+--------+--------+-------+-------+-------|
   |  | IRQ7 |  Open  |  Open  |  Open  | Open  | Open  |Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   | The SC402 is used with FT150 tape drive. The tape drive    |
   | cannot be used in EISA systems , 486 or 386 faster than    |
   | 25MHz.                                                     |
   +------------------------------------------------------------+