ad1985jstz-reel Analog Devices, Inc., ad1985jstz-reel Datasheet - Page 22

• Manufacturer Part Number: ad1985jstz-reel
• Description: Ac ?97 Soundmax Codec
• Manufacturer: Analog Devices, Inc.

Reg Num
0x1A
AD1985
Record Select Control Register (Index 0x1A)
This register is used to select the record source, independently for the right and left channels.
For single MIC recording, see the MS bit (Register 0x20) for MIC1 and MIC2 input selection.
For dual MIC recording, see the 2CMIC bit (Register 0x76) to enable simultaneous recording into L/R channels.
For output line sharing for the microphones, see the OMS bit (Register 0x74) to swap between the MIC1/MIC2 and C/LFE pins.
The default value is 0x0000, which corresponds to the MIC input for both channels.
LS[2:0]
RS[2:0]
RS[2:0]
LS[2:0]
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Left Record Select
OMS
0
0
0
0
1
1
1
1
CD_IN (left)
Muted
AUX_IN (left)
LINE_IN (left)
Stereo Mix (left)
Mono Mix (mono)
PHONE_IN (mono)
Right Record Select
OMS
0
0
0
0
1
1
1
1
CD_IN (right)
Muted
AUX_IN (right)
LINE_IN (right)
Stereo Mix (right)
Mono Mix (mono)
PHONE_IN (mono)
Name
Record Select
2CMIC
0
0
1
1
0
0
1
1
2CMIC
0
0
1
1
0
0
1
1
Right Record Select: See table below.
Left Record Select: See table below.
MS
0
1
0
1
0
1
0
1
MS
0
1
0
1
0
1
0
1
MIC1 (mono)
MIC2 (mono)
MIC1 (stereo)
MIC2 (stereo)
CENTER (mono)
LFE (mono)
CENTER (stereo)
LFE (stereo)
MIC1 (mono)
MIC2 (mono)
MIC2 (stereo)
MIC1 (stereo)
CENTER (mono)
LFE (mono)
LFE (stereo)
CENTER (stereo)
D15 D14 D13 D12 D11 D10 D9
X
X
X
X
Rev. A | Page 22 of 48
X
LS2
LS1 LS0 X
D8
D7 D6 D5 D4 D3 D2
X
X
X
X
RS2 RS1 RS0
D1
D0
Default
0x0000