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                                         

<gopher://bitreich.org/I/th99/i/C-D/50812-1.png>
   

   +------------------------------------------------------------+
   |                        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.                                  |
   +------------------------------------------------------------+