User guide

CS6422
26
3.8 Register 5
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
HwlD TDAPCDNPCDAPFDNPFDAECDNECD ASdt NSdt 1010
000000000000
000A
Bits Name Function Word Operation
15 HwlD Howl detector Disable 0*
1
enable howl detector
disable howl detector
14 TD Tone detector Disable 0*
1
enable tone detector
disable tone detector
13 APCD Acoustic Path Change detector Disable 0*
1
enable PC detector
disable PC detector
12 NPCD Network Path Change detector Disable 0*
1
enable PC detector
disable PC detector
11 APFD Acoustic Pre-emphasis Filter Disable 0*
1
enable filter
disable filter
10 NPFD Network Pre-emphasis Filter Disable 0*
1
enable filter
disable filter
9 AECD Acoustic Echo Canceller Disable 0*
1
enable AEC
disable AEC
8 NECD Network Echo Canceller Disable 0*
1
enable NEC
disable NEC
7-6 ASdt Acoustic Sidetone level 00*
01
10
11
none
-24 dB
-18 dB
-12 dB
5-4 NSdt Network Sidetone level 00*
01
10
11
none
-24 dB
-18 dB
-12 dB
* Denotes reset value
Table 8. Register 5 Bit Definitions
CS6422
26 DS295F1