AS3430 datasheet(36/51 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 29. PWRUP_CNTR Register

Name

Base

Default

PWRUP_CNTR

2-wire serial

00h (OTP)

Offset: 17h

PowerUp Control Register

Configures chip start-up speed. This is a special register, writing needs to be enabled by writing 10b to

Reg 3Fh first. This register is reset at POR and gets loaded with the OTP fuse contents.

Bit

Bit Name

Default

Access

Bit Description

SEQ_LOCK

R/W

0: additional bits can be fused inside register 16h & 17h

1: OTP fusing for register 16h & 17h gets locked, no more changes can be

done.

6:2

FAST_START

<4:0>

0 0000

R/W

0h: ~900ms start-up time

0Eh: ~600ms start-up time

LIN_AGC_OFF

R/W

0: Line Input AGC enabled

1: Line Input AGC switched off

MIC_AGC_OFF

R/W

0:Microphone Input AGC enabled

1: Microphone Input AGC switched off

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