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