AD1985

Rev. A | Page 22 of 48

Record Select Control Register (Index 0x1A)

Reg Num

Name

D15

D14 D13 D12 D11 D10 D9

D8

D7 D6 D5 D4 D3 D2

D1

D0

Default

0x1A

Record Select

X

X

X

X

X

LS2

LS1 LS0 X

X

X

X

X

RS2

RS1

RS0

0x0000

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.

RS[2:0]

Right Record Select: See table below.

LS[2:0]

Left Record Select: See table below.

LS[2:0]

Left Record Select

OMS

2CMIC

MS

0

0

0

MIC1 (mono)

0

0

1

MIC2 (mono)

0

1

0

MIC1 (stereo)

0

1

1

MIC2 (stereo)

1

0

0

CENTER (mono)

1

0

1

LFE (mono)

1

1

0

CENTER (stereo)

0

1

1

1

LFE (stereo)

1

CD_IN (left)

2

Muted

3

AUX_IN (left)

4

LINE_IN (left)

5

Stereo Mix (left)

6

Mono Mix (mono)

7

PHONE_IN (mono)

RS[2:0]

Right Record Select

OMS

2CMIC

MS

0

0

0

MIC1 (mono)

0

0

1

MIC2 (mono)

0

1

0

MIC2 (stereo)

0

1

1

MIC1 (stereo)

1

0

0

CENTER (mono)

1

0

1

LFE (mono)

1

1

0

LFE (stereo)

0

1

1

1

CENTER (stereo)

1

CD_IN (right)

2

Muted

3

AUX_IN (right)

4

LINE_IN (right)

5

Stereo Mix (right)

6

Mono Mix (mono)

7

PHONE_IN (mono)