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# 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
IMG IMG 1
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+