CS6422
CS6422
3.4
Register 1
b15 b14 b13 b12 b11 b10
b9
b8
b7
RSD
0
b6
NCC
00
b5
b4
AuNECD
0
b3
0
b2
0
b1
1
b0
0
THDet
00
Taps
10
TVol
1010
A
2
0
2
Bits
15-14
Name
THDet
Function
Tx Half-duplex Detection
threshold
Word
00*
01
Operation
6 dB
9 dB
10
12 dB
11
reserved
13-12
11-8
Taps
AEC/NEC Tap allocation
Tx Volume control
00
01
444/64 (55.5 ms/8 ms)
380/128 (47.5 ms/16 ms)
316/192 (39.5 ms/24 ms)
252/256 (31.5 ms/32 ms)
10*
11
0000
0001
---
TVol
+30 dB
+27 dB
---
0100
---
1010*
1011
---
+18 dB
---
+0 dB
-3 dB
---
1101
1110
1111
0*
1
00*
01
-9 dB
-12 dB
mute
7
RSD
NCC
Rx Suppression Disable
NEC Coefficient Control
enable Rx suppression
disable Rx suppression
Normal
6-5
Clear
10
Freeze
11
reserved
4
AuNECD
Auto re-engage NEC Disable
0*
1
enable Auto NEC
disable Auto NEC
* Denotes reset value
Table 4. Register 1 Bit Definitions
17
17
DS295F1
CIRRUS [ CIRRUS LOGIC ]
