Allwinner A20 - Page 178

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 178 / 812
Offset:0x10
Register Name: AC_DAC_ACTRL
Bit
R/W
Default
Description
Internal DAC Analog Left channel Enable
0:Disable
1:Enable
29
R/W
0x0
MIXEN.
Analog Output Mixer Enable
0:Disable
1:Enable
28:27
/
/
/
26
R/W
0x1
LNG.
Line-in gain stage to output mixer Gain Control
0: -1.5dB
1: 0dB
25:23
R/W
0x3
FMG.
FM Input to output mixer Gain Control
From -4.5dB to 6dB, 1.5dB/step, default is 0dB
22:20
R/W
0x3
MICG.
MIC1/2 gain stage to output mixer Gain Control
From -4.5dB to 6dB, 1.5dB/step, default is 0dB
19
R/W
0x0
LLNS.
Left LINEIN gain stage to left output mixer mute
0-mute; 1-Not mute
When LNRDF is 0, left select LINEINL
When LNRDF is 1, left select LINEINL-LINEINR
18
R/W
0x0
RLNS.
Right LINEIN gain stage to right output mixer mute
0-mute; 1-Not mute
When LNRDF is 0, right select LINEINR
When LNRDF is 1, right select LINEINL-LINEINR
17
R/W
0x0
LFMS.
Left FM to left output mixer mute
0:mute
1:Not mute
16
R/W
0x0
RFMS.
right FM to right output mixer mute
0:mute