AS3430 datasheet(32/51 Pages) AMSCO

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AS3400 AS3410 AS3430 1v0

Data Sheet - R e g i s t e r D e s c r i p t i o n

Table 21. PWR_SET Register

Name

Base

Default

PWR_SET

2-wire serial

0x11 1111b (stand alone mode)

0x00 0000b (I2C mode)

Offset: 21h

Power Setting Register

Please be aware that writing to this register will enable/disable the corresponding blocks,

while reading gets the actual status. It is not possible to read back e.g ILED settings. This

Bit

Bit Name

Default

Access

Bit Description

PWR_REG_ON

R/W

Defines which register is used for the power settings.

0: all blocks stay on as defined in the start-up sequence

1: register 21h is used

6:5

ILED<1:0>

Sets the current sunk into ILED

00: current sink switched OFF

01: 25%

10: 50%

11: 100%

LOW_BAT

VBAT supervisor status

0: VBAT is above brown out level

1: BVDD has reached brown out level

PWRUP_COMPLETE

Power-Up sequencer status

0: power-up sequence incomplete

1: power-up sequence completed

4HP_ON

0: switches HP stage off

1: switches HP stage on

0: HP stage not powered

1: normal operation

3MIC_ON

0: switches microphone stage off

1: switches microphone stage on

0: microphone stage not powered

1: normal operation

2LIN_ON

0: switches line input stage off

1: switches line input stage on

0: line input stage not powered

1: normal operation

1MICS_CP_ON

0: switches microphone supply charge pump off

1: switches microphone supply charge pump on

0: microphone supply charge pump not powered

1: normal operation

0MICS_ON

0: switches microphone supply off

1: switches microphone supply on

0: microphone supply not enabled

1: normal operation

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