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