SPECTRUM SIGNAL PROCESSING, INC.
================================

   ENVOY II

   Card Type              Sound/Data                              
                          (synchronous/asynchronous)/Fax          
   Maximum Data Rate      14.4Kbps                                
   Maximum Fax Rate       9600bps                                 
   Data Bus               16-bit ISA                              
   Chipset Controller     DSP Technology                          
   Fax Class              Class I & II                            
   I/O Options            Microphone in, speaker out              
   Data Modulation        Bell 103A/212A                          
   Protocol                                                       
                          ITU-T V.21, V.22, V.22bis, V.32,        
                          V.32bis                                 
   Fax Modulation         ITU-T V.21CH2, V.27ter, V.29            
   Protocol               
   Error                  MNP5, V.42, V.42bis                     
   Correction/Compression 

<gopher://bitreich.org/I/th99/t/S-T/51227-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Purpose     | Location |      Purpose       | Location |
   |-----------------+----------+--------------------+----------|
   | Microphone in   |    J1    | Telephone line in  |    J3    |
   |-----------------+----------+--------------------+----------|
   | Speaker out     |    J2    | Telephone line out |    J4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              I/O BASE ADDRESS RANGE SELECION               |
   |------------------------------------------------------------|
   |  Base I/O   |   ISA I/O   | JB6/Pins | JB6/Pins | JB6/Pins |
   |   address   |   address   |  1 & 2   |  3 & 4   |  5 & 6   |
   |-------------+-------------+----------+----------+----------|
   |>> | 4E30h - | 230h - 23Fh |  Closed  |  Closed  |   Open   |
   |   |  4E3Fh  |             |          |          |          |
   |---+---------+-------------+----------+----------+----------|
   |   | 130h -  | 130h - 13Fh |  Closed  |   Open   |  Closed  |
   |   |  13Fh   |             |          |          |          |
   |---+---------+-------------+----------+----------+----------|
   |   | 1B0h -  | 1B0h - 1BFh |   Open   |   Open   |  Closed  |
   |   |  1BFh   |             |          |          |          |
   |---+---------+-------------+----------+----------+----------|
   |   | 4EB0h - | 2B0h - 2BFh |   Open   |  Closed  |   Open   |
   |   |  4EBFh  |             |          |          |          |
   |---+---------+-------------+----------+----------+----------|
   |   | 4F30h - | 330h - 33Fh |  Closed  |   Open   |   Open   |
   |   |  4F3Fh  |             |          |          |          |
   |---+---------+-------------+----------+----------+----------|
   |   | 4FB0h - | 3B0h - 3BFh |   Open   |   Open   |   Open   |
   |   |  4FBFh  |             |          |          |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   |          Channel           |              JB1              |
   |----------------------------+-------------------------------|
   |>>  |           6           |  Pins 9 & 10, 11 & 12 closed  |
   |----+-----------------------+-------------------------------|
   |    |           0           |   Pins 1 & 2, 3 & 4 closed    |
   |----+-----------------------+-------------------------------|
   |    |           5           |   Pins 5 & 6, 7 & 8 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              COMMUNICATION PORT CONFIGURATION              |
   |------------------------------------------------------------|
   | Port  | IRQ |           JB5            |        JB4        |
   |-------+-----+--------------------------+-------------------|
   |>> | 3 |  5  | Pins 1 & 2, 5 & 6 closed | Pins 5 & 6 closed |
   |---+---+-----+--------------------------+-------------------|
   |   | 4 | 2/9 | *Pins 1 & 2, 3 & 4, 5 &  | Pins 7 & 8 closed |
   |   |   |     |            6             |                   |
   |---+---+-----+--------------------------+-------------------|
   |   | 2 |  3  | Pins 1 & 2, 5 & 6 closed | Pins 3 & 4 closed |
   |---+---+-----+--------------------------+-------------------|
   |   | 1 |  4  |    Pins 1 & 2 closed     | Pins 1 & 2 closed |
   |------------------------------------------------------------|
   | *Note: Pins designated are in the closed position.         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              DMA TRANSFER PER CYCLE SELECTION              |
   |------------------------------------------------------------|
   |               Cycle                |          JB2          |
   |------------------------------------+-----------------------|
   |>>    |         4 transfers         |        Closed         |
   |------+-----------------------------+-----------------------|
   |      |         2 transfers         |         Open          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  DSP INTERRUPT SELECTION                   |
   |------------------------------------------------------------|
   |            IRQ             |              JB3              |
   |----------------------------+-------------------------------|
   |>> |           15           |       Pins 3 & 4 closed       |
   |---+------------------------+-------------------------------|
   |   |           10           |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           ISA CHANNEL READY DELAY CONFIGURATION            |
   |------------------------------------------------------------|
   |            Setting             |            JB7            |
   |--------------------------------+---------------------------|
   |>> |     Not gated (Normal)     |     Pins 1 & 2 closed     |
   |---+----------------------------+---------------------------|
   |   |     Gated (Alternate)      |     Pins 2 & 3 closed     |
   +------------------------------------------------------------+