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       # COLORADO MEMORY SYSTEMS, INC.
       
          PC-02
       
          Card Type          Tape drive controller                       
          Chipset/Controller Unidentified                                
          I/O Options        Tape drive connector (internal/external)    
          Maximum DRAM       N/A                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Purpose         | Location |   Purpose   | Location |
          |------------------------+----------+-------------+----------|
          | Tape drive connector - |   CN1    | Tape drive  |   CN2    |
          | internal               |          | connector - |          |
          |                        |          | external    |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   INTERRUPT SELECT - JP1                   |
          |------------------------------------------------------------|
          | IRQ  |Jumper A|Jumper B|Jumper C|Jumper D|Jumper E|Jumper F|
          |------+--------+--------+--------+--------+--------+--------|
          |»|IRQ3|  Open  | Closed |  Open  |  Open  |  Open  |  Open  |
          |-+----+--------+--------+--------+--------+--------+--------|
          | |IRQ2| Closed |  Open  |  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 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DMA SELECT                         |
          |------------------------------------------------------------|
          |      |  JP2   |  JP3   |                                   |
          |------+--------+--------+-----------------------------------|
          | |DMA |Jumper A|Jumper B|Jumper C|Jumper D|Jumper E|Jumper F|
          |-+----+--------+--------+--------+--------+--------+--------|
          |»|DMA1| Closed |  Open  |  Open  | Closed |  Open  |  Open  |
          |-+----+--------+--------+--------+--------+--------+--------|
          | |DMA2|  Open  | Closed |  Open  |  Open  | Closed |  Open  |
          |-+----+--------+--------+--------+--------+--------+--------|
          | |DMA3|  Open  |  Open  | Closed |  Open  |  Open  | Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 I/O ADDRESS CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Base  |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
          |Address |      |      |      |      |     |     |     |     |
          |--------+------+------+------+------+-----+-----+-----+-----|
          |» |300h |  On  |  On  |  On  |  On  | On  | On  | Off | Off |
          |--+-----+------+------+------+------+-----+-----+-----+-----|
          |  |3C8h |  On  | Off  |  On  |  On  | Off | Off | Off | Off |
          |------------------------------------------------------------|
          |Note:The address range for the PC-02 is from 0 to 3FCh. The |
          |switches are a binary representation of the addresses,      |
          |increasing in weight from left to right. When a switch is   |
          |off, the corresponding bit is set to 1 and has the following|
          |decimal value: SW1/1=4, SW1/2=8, SW1/3=1, SW1/4=2, SW1/5=4, |
          |SW1/6=8, SW1/7=1, SW1/8=2.                                  |
          +------------------------------------------------------------+