DSP Resource Specifications

Table 7-2 shows the number of DSP resources available per DSP chip, channels per stream, and resource points used for each function on the DSP Series 2 cards.

Table 8-2 DSP Resource Specifications

Number

Function

Resources per DSP Chip

(assuming sufficient Resource Points)

Maximum Channels per DSP Stream

Resource Points Used per Channel

Tone Reception

 

 

0x01

DTMF (µ-law)

384

192

5

0x02

MFR1 (µ-law)

512

256

5

0x03

DTMF (A-law)

384

192

5

0x04

MFR1 (A-law)

512

256

5

0x05

MFR2 (A-law)

512

256

8

0x06

MFR2 (µ-law)

512

256

8

0x07

CPA (A-law)

384

192

10

0x08

CPA (µ-law)

384

192

10

0x09

Dial Pulse

N/A

 

 

0x0A

Energy Detection

384

192

10

0x0C

DTMF HPF (µ-law)

N/A

 

 

0x0D

DTMF HPF (A-law)

N/A

 

 

Tone Generation*

 

 

0x30

Universal µ-law

 

256

0

0x31

Universal A-law

 

256

0

Conferencing

 

 

0x21

Monitor

256 Resources (128 + broadcast per conference)

128

8

0x22

Unified

256 Resources (128 + broadcast per conference)

128

8

0x23

DTMF Clamped

256 Resources (128 + broadcast per conference)

128

8

File Record/Playback (requires 2 streams)

 

 

0x1D

File Record/Playback

128**

64

12

Miscellaneous

0x32

T.30 FAX

12

6

12

0x33

Echo Cancellation

64

32

12

0x34

Positive Voice Detection/
Answering Machine Detection

384

192

5