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  |