W681307DG Datasheet, PDF(31/160 Page) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM.

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W681307DG Datasheet, PDF (31/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM.

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W681307

7.3.8

Address

0x14EB

0x14EC

0x14ED

0x14EE

0x14EF

0x14F0

0x14F1

0x14F2

0x14F3

0x14F4

0x14F5

0x14F6

0x14F7

Soft Clip Registers Overview

Name

Mode

Soft Clip Control

R/W

VD Soft Clip Normal Index

R/W

VD Soft Clip Low Index

R/W

VD SC Threshold

R/W

ShortTermPreNetworkPowerA

ttackTC

R/W

VDSC Attack TC

R/W

DT Soft Clip Normal Index

R/W

DT Soft Clip Low Index

R/W

DT SC Threshold

R/W

ShortTermPostAcousticPower

AttackTC

R/W

DTSC Attack TC

R/W

Value At

Reset

0x00

0x0400

0x07

0x00

0x0400

0x07

Function

Enable the soft clipping function

Control the gain of VD soft clip module at normal mode

Control the gain of VD soft clip module at low mode

Determine the selection of Soft Clip gain

Time constant use to calculate the short term network

power for VD soft clip

Smooth the gain change

Control the gain of DT soft clip module at normal mode

Control the gain of DT soft-clip module at low mode

Determine the selection of Soft Clip gain

Time constant use to calculate the short term acoustic

power for DT soft clip

Smoothing function, smooth the gain change

7.3.9

Address

0x1500

0x1501

0x1502

CODEC Digital Part

Name

CODEC_OnOff_Scheme

CODEC Digital Part

CODEC ADC ABF PROB

Mode

R/W

Value At

Reset

0x00

0x80

0xFF

Function

Hardware scheme to arrange the procedure and timing for

CODEC_digital_disable and CODEC_analog_disable

Reset CODEC FIFO value or reset CODEC FIFO point

Adaptive bit flip probability of the ADC path in the CODEC

modulator

7.3.10

Address

0x1503

Sounder Path Select

Name

Sounder path

Mode

R/W

Value At

Reset

0x00

Function

Sounder signal select PDM or PWMnd reference clock

generation for external melody chip

7.3.11

Address

0x1504

Frequency Adjustment of Crystal Oscillator

Name

FACO

Mode

R/W

Value At

Reset

0x00

Function

Select the on-chip capacitance connected to XTAL1 and

XTAL2 respectively

7.3.12

Specific Register

Address

0x1505

Name

Specific Register

Mode

R/W

Value At

Reset

Function

0x00 Blocked for test modes

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Publication Release Date: May, 2007

Revision 1.3

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