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 Protocol |
Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis |
|
Fax Modulation Protocol |
ITU-T V.21CH2, V.27ter, V.29 |
|
Error Correction/Compression |
MNP5, V.42, V.42bis |
|
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 address |
ISA I/O address |
JB6/Pins 1 & 2 |
JB6/Pins 3 & 4 |
JB6/Pins 5 & 6 | |
|
|
4E30h - 4E3Fh |
230h - 23Fh |
Closed |
Closed |
Open |
|
130h - 13Fh |
130h - 13Fh |
Closed |
Open |
Closed | |
|
1B0h - 1BFh |
1B0h - 1BFh |
Open |
Open |
Closed | |
|
4EB0h - 4EBFh |
2B0h - 2BFh |
Open |
Closed |
Open | |
|
4F30h - 4F3Fh |
330h - 33Fh |
Closed |
Open |
Open | |
|
4FB0h - 4FBFh |
3B0h - 3BFh |
Open |
Open |
Open | |
|
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 & 6 |
Pins 7 & 8 closed |
|
|
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 |