Cirrus Logic CS6422 - Manual (Page 26)

CS6422
26
3.8 Register 5
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
HwlD TD APCD NPCD APFD NPFD AECD NECD ASdt NSdt 1 0 1 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 A
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