AD1887 Analog Devices, AD1887 Datasheet - Page 15

• Manufacturer Part Number: AD1887
• Description: AC97 SoundMAX Codec
• Manufacturer: Analog Devices

Sample Rate 0 (Index 78h)
Note: 32h is an alias for 78h. The VRA bit in Register 2Ah must be set for the alias to work; if a zero is written to VRA then both
sample rates are reset to 48 kHz.
SR0[15:0]
Sample Rate 1 (Index 7Ah)
Note: 2Ch is an alias for 7Ah. The VRA bit in Register 2Ah must be set for the alias to work; if a zero is written to VRA then both
sample rates are reset to 48 kHz.
SR1[15:0]
Vendor ID Registers (Index 7Ch–7Eh)
S[7:0]
F[7:0]
T[7:0]
R g
R g
R g
R g
R
N m
N m
N m
N m
N
7 h
7 h
7 h
7 h
7
R g
R g
R g
R g
R
N m
N m
N m
N m
N
(
(
(
(
(
R g
R g
R g
R g
R
N m
N m
N m
N m
N
2 (
2 (
2 (
2 (
2 (
R g
R g
R g
R g
R
N m
N m
N m
N m
N
7 h
7 h
7 h
7 h
7
E
E
E
E
E
2 3
2 3
2 3
2 3
2 3
e
e
e
e
e
u
u
u
u
u
C
C
C
C
C
e
e
e
e
e
u
u
u
e
e
e
e
e
u
u
u
u
u
u
u
C
C
C
C
C
e
e
e
e
e
g
h
u
u
u
u
u
m
g
g
m
m
h
h
h
h
h
g
h
) h
) h
) h
) h
) h
m
/ )
/ )
/ )
/ )
/ )
8 7
8 7
8 7
8 7
8 7
7 /
7 /
7 /
7 /
7 /
N
N
N
N
N
V
V
V
V
V
A
A
A
A
A
e
e
e
e
e
h
h
h
h
h
a
a
a
a
a
N
N
N
N
N
V
V
V
V
V
n
n
n
n
n
h
h
h
h
h
m
m
m
m
m
e
e
e
e
e
a
a
a
a
a
d
d
d
d
d
N
N
N
N
N
S
S
S
S
S
R
R
R
R
R
n
n
n
n
n
e
e
e
e
e
N
N
N
N
N
S
S
S
S
S
R
R
R
R
R
m
m
m
m
m
r o
r o
r o
r o
r o
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
d
d
d
a
a
a
a
a
d
d
a
a
a
a
a
a
a
a
a
a
m
m
m
m
m
m
m
m
m
m
e t
e t
e t
e t
e t
e
e
e
e
e
m
m
m
m
m
m
m
m
m
m
e t
e t
e t
e t
e t
o
o
o
o
o
I
I
I
I
I
D
D
D
D
D
p
p
p
p
p
r
r
r
r
r
e
e
e
e
e
p
p
p
0
0
0
p
p
0
0
e
e
e
e
e
1
1
1
e l
e l
e l
e l
e l
1
1
2
2
2
e l
e l
e l
e l
e l
2
2
I
I
I
I
I
Writing to this register allows the user to program the sampling frequency from 7 kHz (1B58h) to 48 kHz (BB80h)
in 1 Hertz increments. Programming a value greater than 48 kHz or less than 7 kHz may cause unpredictable results.
Writing to this register allows the user to program the sampling frequency from 7 kHz (1B58h) to 48 kHz (BB80h)
in 1 Hertz increments. Programming a value greater than 48 kHz or less than 7 kHz may cause unpredictable results.
This register is ASCII encoded to ‘A.’
This register is ASCII encoded to ‘D.’
This register is ASCII encoded to ‘S.’
D
D
D
D
D
D 5 1
D 5 1
D 5 1
D 5 1
D
S
S
S
S
S
1
1
1
1
1
D 5 1
D 5 1
D 5 1
D 5 1
D
T7
T7
T7
T7
T
D 5 1
D 5 1
D 5 1
D 5 1
D
S
S
S
S
S
R
R
R
R
R
5 1
R
R
R
R
R
7
0
0
0
0
0
5 1
5 1
D 5
D 5
D 5
D 5
D
F7
F7
F7
F7
F
5 1
5 1
5 1
5 1
5 1
1
1
1
1
1
5 1
5 1
5 1
5 1
5 1
7
1
1
1
1
1
D 4 1
D 4 1
D 4 1
D 4 1
D
T6
T6
T6
T6
T
5
D 4 1
D 4 1
D 4 1
D 4 1
D
S
S
S
S
S
6
4 1
R
R
R
R
R
4 1
D 4 1
D 4 1
D 4 1
D 4 1
D
S
S
S
S
S
D 4
D 4
D 4
F6
F6
F6
0
0
0
D 4
D
F6
F
0
0
R
R
R
R
R
4 1
4 1
4 1
4 1
4 1
4 1
6
1
1
1
1
1
1
1
1
1
1
D 3 1
D 3 1
D 3 1
T5
T5
T5
D 3 1
D
T5
T
4 1
4 1
4 1
4 1
4 1
4
5
3 1
D 3 1
D 3 1
D 3 1
D 3 1
D
S
S
S
S
S
R
R
R
R
R
D 3
D 3
D 3
D 3
D
F5
F5
F5
F5
F
3 1
D 3 1
D 3 1
D 3 1
D 3 1
D
S
S
S
S
S
0
0
0
0
0
D 2 1
D 2 1
D 2 1
T4
T4
T4
D 2 1
D
T4
T
5
R
R
R
R
R
1
1
1
1
1
3 1
3 1
3 1
3 1
3 1
3 1
4
1
1
1
1
1
3
2 1
3 1
3 1
3 1
3 1
3 1
D 2 1
D 2 1
D 2 1
D 2 1
D
S
S
S
S
S
D 2
D 2
D 2
F4
F4
F4
D 2
D
F4
F
R
R
R
R
R
D 1 1
D 1 1
D 1 1
D 1 1
D
T3
T3
T3
T3
T
2 1
4
D 2 1
D 2 1
D 2 1
D 2 1
D
S
S
S
S
S
1
1
1
1
1
0
0
0
3
0
0
1 1
R
R
R
R
R
2
2 1
2 1
2 1
2 1
2 1
2 1
1
1
1
1
1
2 1
2 1
2 1
2 1
2 1
D 1
D 1
D 1
D 1
D
F3
F3
F3
F3
F
D 0 1
D 0 1
D 0 1
D 0 1
D
T2
T2
T2
T2
T
D 1 1
D 1 1
D 1 1
D 1 1
D
S
S
S
S
S
2
3
R
R
R
R
R
0 1
1
1
1
1
1
1 1
D 1 1
D 1 1
D 1 1
S
S
S
D 1 1
D
S
S
0
0
0
0
0
1
R
R
R
R
R
1 1
1 1
1 1
1 1
1 1
1 1
D9
D9
D9
D9
D
T1
T1
T1
T1
T
1
1
1
1
1
D 0
D 0
D 0
F2
F2
F2
D 0
D
F2
F
1 1
1 1
1 1
1 1
1 1
1
9
D 0 1
D 0 1
D 0 1
D 0 1
D
S
S
S
S
S
2
1
1
1
1
1
R
R
R
R
R
0 1
0
D 0 1
D 0 1
D 0 1
D 0 1
D
S
S
S
S
S
0
0
0
0
0
D8
D8
D8
T0
T0
T0
D8
D
T0
T
0 1
0 1
0 1
0 1
0 1
R
R
R
R
R
0 1
D9
D9
D 9
D
D9
F1
F1
F1
F1
F
0
8
1
1
1
1
1
0 1
0 1
0 1
0 1
0 1
1
9
D9
D9
D9
D
D9
S
S
S
S
S
R
R
R
R
R
D7
D7
D7
D7
D
R
R
R
R
R
9
9 0
9 0
9 0
9 0
9 0
D9
D9
D9
D9
D
S
S
S
S
S
E
E
E
E
E
7
D8
D8
D 8
D
D8
F0
F0
F0
F0
F
R
R
R
R
R
9
V
V
V
V
V
0
9 1
9 1
9 1
9 1
9 1
8
7
7
7
7
7
D8
D8
D8
D
D8
S
S
S
S
S
R
R
R
R
R
8
D6
D6
D6
D6
D
R V
R V
R V
R V
R
8 0
8 0
8 0
8 0
8 0
D8
D8
D8
S
S
S
D8
D
S
S
D7
D7
D 7
D
D7
S7
S7
S7
S7
S
R
R
R
R
R
E
E
E
E
E
8
6
7
8 1
8 1
8 1
8 1
8 1
7
V
D7
D7
D7
D
D7
S
S
S
S
S
6 6 6 6 6
R
R
R
R
R
7
D7
D7
D7
S
S
S
D7
D
S
S
7 0
7 0
7 0
7 0
7 0
D6
D6
D 6
D
D6
S6
S6
S6
S6
S
R
R
R
R
R
D5
D5
D5
R V
R V
R V
D5
D
R V
R
7
6
7 1
7 1
7 1
7 1
7 1
E
E
E
E
E
6
5
D6
D6
D6
S
S
S
D6
D
S
S
V
R
R
R
R
R
6
D6
D6
D6
D6
D
S
S
S
S
S
5 5 5 5 5
6 0
6 0
6 0
6 0
6 0
R
R
R
R
R
D5
D5
D 5
D
D5
S5
S5
S5
S5
S
6
6 1
6 1
6 1
6 1
6 1
5
D4
D4
D4
D4
D
R V
R V
R V
R V
R
5
D5
D5
D5
D
D5
S
S
S
S
S
E
E
E
E
E
4
R
R
R
R
R
5
D5
D5
D5
D5
D
S
S
S
S
S
V
5 0
5 0
5 0
5 0
5 0
R
R
R
R
R
4 4 4 4 4
D4
D4
D 4
D
D4
S4
S4
S4
S4
S
5
5 1
5 1
5 1
5 1
5 1
4
4
D4
D4
D4
D
D4
S
S
S
S
S
D3
D3
D3
D3
D
R V
R V
R V
R V
R
R
R
R
R
R
D4
D4
D4
D4
D
S
S
S
S
S
E
E
E
E
E
4
3
4 0
4 0
4 0
4 0
4 0
R
R
R
R
R
V
4
D3
D 3
D3
S3
S3
S3
D3
D
S3
S
4 1
4 1
4 1
4 1
4 1
3 3 3 3 3
3
3
D
S
D2
D2
D2
D2
D
R V
R V
R V
R V
R
R
D
S
3
R
3 0
E
E
E
E
E
3
2
D2
D2
D 2
D
D2
S2
S2
S2
S2
S
3 1
V
2
2
2 2 2 2 2
D2
D2
D2
D
D2
S
S
S
S
S
D2
D2
D2
D2
D
S
S
S
S
S
R
R
R
R
R
2
R
R
R
R
R
D1
D1
D1
R V
R V
R V
D1
D
R V
R
2
2 0
2 0
2 0
2 0
2 0
D1
D 1
D1
S1
S1
S1
D1
D
S1
S
2 1
2 1
2 1
2 1
2 1
E
E
E
E
E
1
1
1
V
D1
D1
D1
S
S
S
D1
D
S
S
D1
D1
D1
S
S
S
D1
D
S
S
1 1 1 1 1
R
R
R
R
R
1
R
R
R
R
R
1
1 0
1 0
1 0
1 0
1 0
D0
D0
D 0
D
D0
S0
S0
S0
S0
S
1 1
1 1
1 1
1 1
1 1
D0
D0
D0
D0
D
R V
R V
R V
R V
R
AD1887
0
E
E
E
0
E
E
0
D0
D0
D0
D
D0
S
S
S
S
S
D0
D0
D0
S
S
S
D0
D
S
S
V
R
R
R
R
R
R
R
R
0
R
R
0 0 0 0 0
0
0 0
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
0 1
D
D
D
4
4
4
D
D
4
4
1
1
1
1
1
D
D
D
D
D
3 5 h
3 5 h
3 5 h
3 5
3 5
e
e
e
e
e
4
4
4
4
4
D
D
D
D
D
B
B
B
B
B
D
D
D
D
D
B
B
B
B
B
a f
a f
a f
a f
a f
e
e
e
e
e
4
4
4
4
4
2 6
2 6
2 6
2 6
2 6
B
B
B
a f
a f
a f
a f
a f
B
B
B
B
B
B
B
e
e
e
e
e
e
e
e
e
e
h
h
h
h
h
u
u
u
u
u
a f
a f
a f
a f
a f
a f
a f
a f
a f
a f
h
h
0 8
0 8
0 8
0 8
0 8
0 8
0 8
0 8
0 8
0 8
u
u
u
u
u
t l
t l
t l
t l
t l
u
u
u
u
u
u
u
u
u
u
t l
t l
t l
t l
t l
h
h
h
h
h
h
h
h
h
h
t l
t l
t l
t l
t l
t l
t l
t l
t l
t l