Table of Contents
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AD1887
Mic Volume (Index 0Eh)
R g
R g
R g
R
R g
e
e
e
e
e
g
N
N
N
N
N
a
a
a
a
a
m
m
m
m
m
e
e
e
e
e
D
D 5 1
D 5 1
D 5 1
D 5 1
5 1
D 4 1
D 4 1
D 4 1
D
D 4 1
4 1
N
N m
N m
N m
N m
u
u
u
u
u
m
M
M C
M C
M C
M C
I
I
I
I
I
C
0 h
0 h
0 h
0 h
0
E
E
E
E
h
M M
M M
M M
M M
M
C
C
C
C
M
X X X X X
E
C
V
V
V
V
V
o
o
o
o
o
u l
u l
u l
u l
u l
m
m
m
m
m
e
e
e
e
e
MCV[4:0]
Mic Volume Gain. Allows setting the Mic Volume attenuator in 32 steps. The LSB represents 1.5 dB, and the
range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
M30
Mic Boost Gain: Amplifies the Mic input. 0 = 0 dB, 1 = 30 dB
MCM
Mic Mute. When this bit is set to "1," the channel is muted.
Line In Volume (Index 10h)
R g
R g
R g
R g
R
e
e
e
e
e
g
N
N
N
N
N
a
a
a
a
a
m
m
m
m
m
e
e
e
e
e
D 5
D 5
D 5
D 5
D
1
1
1
1
1
5
D 4
D 4
D
D 4
D 4
N m
N m
N m
N
N m
u
u
u
u
u
m
L
L
L
L
n i
n i
n i
n i
e
e
e
e
I
I
I
I
n
n
n
n
L
n i
e
I
n
1 h
1 h
1 h
1
1 h
0
0
0
0
0
h
LM
L
LM
LM
LM
M
X X X X X
V
V
V
V
V
o
o
o
o
o
u l
u l
u l
u l
u l
m
m
m
m
m
e
e
e
e
e
RLV[4:0]
Right Line In Volume. Allows setting the Line In right channel attenuator in 32 steps. The LSB represents 1.5 dB,
and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
LLV[4:0]
Line In Volume Left. Allows setting the Line In left channel attenuator in 32 steps. The LSB represents 1.5 dB,
and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
LM
Line In Mute. When this bit is set to "1," the channel is muted.
CD Volume (Index 12h)
R
R g
R g
R g
R g
e
e
e
e
e
g
N
N
N
N
N
a
a
a
a
a
m
m
m
m
m
e
e
e
e
e
D 5
D 5
D 5
D 5
D
1
1
1
1
1
5
D
D 4
D 4
D 4
D 4
1
1
1
1
1
N m
N m
N m
N
N m
u
u
u
u
m
u
CD
CD
CD
CD
C
D
1
1 h
1 h
1 h
1 h
2
2
2
2
2
h
C M
C M
C M
C
C M
V
V
V
V
V
M
X X X X X
V
V
V
V
o
o
o
o
u l
u l
u l
u l
m
m
m
m
e
e
e
e
V
o
u l
m
e
RCV[4:0]
Right CD Volume. Allows setting the CD right channel attenuator in 32 steps. The LSB represents 1.5 dB, and
the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
LCV[4:0]
Left CD Volume. Allows setting the CD left channel attenuator in 32 steps. The LSB represents 1.5 dB, and the
range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
CVM
CD Volume Mute. When this bit is set to "1," the channel is muted.
D
D 3 1
D 3 1
D 3 1
D 3 1
3 1
D
D 2 1
D 2 1
D 2 1
D 2 1
2 1
D 1 1
D 1 1
D 1 1
D
D 1 1
1 1
D 0 1
D 0 1
D 0 1
D 0 1
D
0 1
D
D9
D9
D9
D9
9
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
1
1
1
1
1
4
D 3
D 3
D 3
D 3
D
1
1
1
1
1
3
D
D 2
D 2
D 2
D 2
1
1
1
1
1
2
D 1
D 1
D 1
D 1
D
1
1
1
1
1
1
D 0
D 0
D 0
D
D 0
1
1
1
1
1
0
X X X X X
L
L
L
L
L
L
L
L
L
L
V
V
V
V
V
4
4
4
4
4
L
L
L
L
L
L
L
L
L
L
V
V
V
V
V
3
3
3
3
3
L
L
L
L
L
L
L
L
L
L
V
V
V
V
V
2
2
2
2
2
4
D 3
D 3
D 3
D 3
D
1
1
1
1
1
3
D 2
D 2
D 2
D 2
D
1
1
1
1
1
2
D 1
D
D 1
D 1
D 1
1
1
1
1
1
1
D 0
D 0
D
D 0
D 0
1
1
1
1
1
0
X X X X X
L
L
L
L
L
C
C
C
C
C
V
V
V
V
V
4
4
4
4
4
L
L
L
L
L
C
C
C
C
C
V
V
V
V
V
3
3
3
3
3
L
L
L
L
L
C
C
C
C
C
V
V
V
V
V
2
2
2
2
2
D8
D8
D8
D8
D
8
D7
D7
D7
D
D7
7
D6
D
D6
D6
D6
6
D
D5
D5
D5
D5
5
D4
D4
D4
D4
D
4
X X X X X
X X X X X
M 0 3
M
M 0 3
M 0 3
M 0 3
0 3
X X X X X
M
M
M
M
C
C
C
C
M
C
D
D9
D 9
D9
D9
9
D8
D 8
D8
D
D8
8
D7
D
D7
D 7
D7
7
D6
D6
D6
D 6
D
6
D5
D5
D 5
D
D5
5
L
L
L
L
L
L
L
L
L
L
V
V
V
V
V
1
1
1
1
1
L
L
L
L
L
L
L
L
L
L
V
V
V
V
V
0
0
0
0
0
X X X X X
X X X X X
X X X X X
D9
D9
D 9
D
D9
9
D8
D8
D8
D 8
D
8
D 7
D7
D7
D
D7
7
D 6
D6
D6
D6
D
6
D5
D 5
D5
D5
D
5
L
L
L
L
L
C
C
C
C
C
V
V
V
V
V
1
1
1
1
1
L
L
L
L
L
C
C
C
C
C
V
V
V
V
V
0
0
0
0
0
X X X X X
X X X X X
X X X X X
–10–
D3
D
D3
D3
D3
3
D2
D2
D2
D2
D
2
D1
D1
D1
D1
D
1
V
V
V
V
4
4
4
4
M
M
M
M
C
C
C
C
V
V
V
V
3
3
3
3
M
M
M
M
C
C
C
C
V
V
V
V
2
2
2
2
M
M
M
M
C
C
C
C
V
V
V
V
1
1
1
1
V
4
M
C
V
3
M
C
V
2
M
C
V
1
D4
D 4
D
D4
D4
4
D3
D 3
D3
D
D3
3
D 2
D2
D
D2
D2
2
D1
D1
D
D 1
D1
1
R
R
R
R
R
L
L
L
L
L
V
V
V
V
V
4
4
4
4
4
R
R
R
R
R
L
L
L
L
L
V
V
V
V
V
3
3
3
3
3
R
R
R
R
R
L
L
L
L
L
V
V
V
V
V
2
2
2
2
2
R
R
R
R
R
L
L
L
L
L
V
V
V
V
V
1
1
1
1
1
D
D 4
D4
D4
D4
4
D3
D3
D 3
D3
D
3
D 2
D2
D2
D
D2
2
D1
D1
D 1
D1
D
1
R
R
R
R
R
C
C
C
C
C
V
V
V
V
V
4
4
4
4
4
R
R
R
R
R
C
C
C
C
C
V
V
V
V
V
3
3
3
3
3
R
R
R
R
R
C
C
C
C
C
V
V
V
V
V
2
2
2
2
2
R
R
R
R
R
C
C
C
C
C
V
V
V
V
V
1
1
1
1
1
D0
D0
D0
D
D0
0
D
D
D
D
D
e
e
e
e
e
a f
a f
a f
a f
a f
u
u
u
u
u
t l
t l
t l
t l
t l
M
M
M
M
C
C
C
C
V
V
V
V
0
0
0
0
0 8
0 8 h
0 8 h
0 8
0 8 h
8 0
8 0
8 0
8 0
h
h
M
C
V
0
8 0
D0
D 0
D0
D0
D
0
D
D
D
D
D
e
e
e
e
e
a f
a f
a f
a f
a f
u
u
u
u
u
t l
t l
t l
t l
t l
R
R
R
R
R
L
L
L
L
L
V
V
V
V
V
0
0
0
0
0
8
8
8
8
8
8
8
8
8
8
0
0
0
0
0
8
8
8
8
8
h
h
h
h
h
D0
D 0
D0
D0
D
0
D
D
D
D
D
e
e
e
e
e
a f
a f
a f
a f
a f
u
u
u
u
u
t l
t l
t l
t l
t l
R
R
R
R
R
C
C
C
C
C
V
V
V
V
V
0
0
0
0
0
8
8
8
8
8
8
8
8
8
8
0
0
0
0
0
8
8
8
8
8
h
h
h
h
h
REV. 0
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