AV2722 (Preliminary)

21-29

January 22, 2004

ADDRESS 09, ADC PATH RIGHT CHANNEL GAIN AND MUTE CONTROL REGISTER (CREG9[7:0])

ADCMUTER: ADC right channel mute control.

0: do not mute the ADC right-channel (default).

1: mute the ADC right channel, SDO will shift out all zero data in the right channel.

ADCGAINR[4:0]: 5-bit ADC rightchannel input gain (volume) control. The default value of ADCGAINR[4:0] is binary

10010 which is corresponding to 0 dB.

ADDRESS 0A, ADC POWER DOWN CONTROL REGISTER (CREG10[7:0])

ADCLPWDN: ADC left channel power down.

0: do not shut down power of ADC left channel.

1: shut down power of ADC left channel (default)

ADCRPWDN: ADC right channel power down

0: do not shut down power of ADC right channel.

1: shut down power of ADC right channel (default).

PWDNMICBIAS: Microphone bias circuit power down.

0: do not shut down microphone bias circuit (default).

1: shut down power of microphone bias circuit.

ADDRESS 0B, ADC LEFT AND RIGHT MICROPHONE GAIN CONTROL REGISTER (CREG11[7:0])

USEADCL: use ADC microphone left channel.

0: ADC left channel microphone is not used (default).

1: ADC left channel microphone is used.

A[7:0]

CREG9[7:0]

BIT7

BIT6

BIT5

BIT4

BIT3

BIT2

BIT1

BIT0

Hex 09

ADCMUTER

reserved

ADCGAINR[4:0]

Default Value

0

0

0

1

001

0

A[7:0]

CREG10[7:0]

BIT7

BIT6

BIT5

BIT4

BIT3

BIT2

BIT1

BIT0

Hex 0A

Reserved

ADCLPWDN

ADCRPWDN

PWDNMICBIAS

Default Value

00000

1

10

A[7:0]

CREG11[7:0]

BIT7

BIT6

BIT5

BIT4

BIT3

BIT2

BIT1

BIT0

Hex 0B

Reserved

USEADCL

MICGAINL[1:0]

reserved

USEADCR

MICGAINR[1:0]

Default Value

0

00

0

0

0

00