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TLV320AIC20, TLV320AIC21
TLV320AIC24, TLV320AIC25
TLV320AIC20K, TLV320AIC24K
SLAS363D – MARCH 2002 – REVISED APRIL 2005
Control Register 6A Bit Summary
RESET
BIT
NAME
FUNCTION
VALUE
Headset input to output
D6
HDSI2O
0
HDSI2O = 0 The headset input is not connected to the headset output.
HDSI2O = 1 The headset input is connected to the headset output.
Handset input to output
D5
HNSI2O
0
HNSI2O = 0 The handset input is not connected to the handset output.
HNSI2O = 1 The handset input is connected to the handset output.
Caller ID input select
D4
CIDI
0
CIDI = 0 The caller ID input is not connected to ADC channel.
CIDI = 1 The caller ID input is connected to ADC channel.
Line input select
D3
LINEI
0
LINEI = 0 The line driver input is not connected to ADC channel.
LINEI = 1 The line driver input is connected to ADC channel.
MIC input select
D2
MICI
0
MICI = 0 The microphone input is not connected to ADC channel.
MICI = 1 The microphone input is connected to ADC channel.
Handset input select
D1
HNSI
0
HNSI = 0 The handset input is not connected to ADC channel.
HNSI = 1 The handset input is connected to ADC channel
Headset input select
D0
HDSI
0
HDSI = 0 The headset input is not connected to ADC channel.
HDSI = 1 The headset input is connected to ADC channel.
Control Register 6B(1)
D7
D6
D5
D4
D3
D2
D1
D0
1
Reserved
ASTOHD
ASTOHN
SPKO
LINEO
HNSO
HDSO
R/W
R
R/W
(1)
NOTE: R = Read, W = Write
Control Register 6B Bit Summary
RESET
BIT
NAME
FUNCTION
VALUE
D6
Reserved
0
Analog sidetone output select for headset. This bit connects the analog sidetone to headset output.
D5
ASTOHD
0
ASTOHD = 0. The analog sidetone is not connected to headset output.
ASTOHD = 1. The analog sidetone is connected to headset output.
Analog sidetone output select for handset. This bit connects the analog sidetone to handset output.
D4
ASTOHN
0
ASTOHN = 0. The analog sidetone is not connected to handset output.
ASTOHN = 1. The analog sidetone is connected to handset output.
Speaker output select. This bit connects the DAC output to the 8-
speaker driver
D3
SPKO
0
SPKO = 0 The speaker driver output is not connected to DAC channel.
SPKO = 1 The speaker driver output is connected to DAC channel.
Line output select. This bit connects the DAC output to the 600-
line driver
D2
LINEO
0
LINEO = 0 The line driver output is not connected to DAC channel.
LINEO = 1 The line driver output is connected to DAC channel.
Handset output select. This bit connects the DAC output to the 150-
handset driver
D1
HNSO
0
HNSO = 0 The handset driver output is not connected to DAC channel.
HNSO = 1 The handset driver output is connected to DAC channel.
Headset output select. This bit connects the DAC output to the 150-
headset driver
D0
HDSO
0
HDSO = 0 The headset driver output is not connected to DAC channel.
HDSO = 1 The headset driver output is connected to DAC channel.
44