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System
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 282
4.21.5.16. 0x7C ADC DAP Parameter Register(Default Value: 0x2C2C2828)
Offset: 0x7C
Register Name: AC_ADC_DAP_PARA
Bit
R/W
Default/Hex
Description
31:30
/
/
/
29:24
R/W
0x2C
ADAP_LTARG_SET.
Left channel target level setting (-1dB -- -30dB). (6.0format 2s component)
23:22
/
/
/
21:16
R/W
0x2C
ADAP_RTARG_SET.
Right channel target level setting (-1dB -- -30dB). (6.0format 2s component)
15:8
R/W
0x28
ADAP_LGAIN_MAX.
Left channel max gain setting (0-40dB). (7.1format 2s component)
7:0
R/W
0x28
ADAP_RGAIN_MAX.
Right channel max gain setting (0-40dB). (7.1format 2s component)
4.21.5.17. 0x80 ADC DAP Left Average Coef Register(Default Value: 0x00051EB8)
Offset: 0x80
Register Name: AC_ADC_DAP_LAC
Bit
R/W
Default/Hex
Description
31:27
/
/
/
26:0
R/W
0x0051EB8
ADAP_LAC.
Average level coefficient setting(3.24format 2s component)
4.21.5.18. 0x84 ADC DAP Left Decay & Attack Time Register(Default Value: 0x0000_001F)
Offset: 0x84
Register Name: AC_ADC_DAP_LDAT
Bit
R/W
Default/Hex
Description
31
/
/
/
30:16
R/W
0x0000
ADAP_LATT_SET
Left attack time coefficient setting
0000 : 1x32/fs
0001 : 2x32/fs
------------------------
7FFF : 215 x32/fs
T=(n+1)*32*fs
When the gain decreases, the actual gain will decrease 0.5dB at every attack
time.
15
/
/
/
14:0
R/W
0x001F
(32x32fs)
ADAP_LDEC_SET
Left decay time coefficient setting
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