GS3471 datasheet(88/179 Pages) SEMTECH

88 / 179 page

GS3471

Final Data Sheet Rev.4

PDS-060498

September 2017

88 of 179

Semtech

www.semtech.com

Table 4-24: Audio Channel Status Information Registers

Name

Description

Default

ACSR[7:0]

Audio channel status block byte 0 set. Used when ACS_REGEN is set HIGH

85h

ACSR[8:1]

Audio channel status block byte 1 set. Used when ACS_REGEN is set HIGH

08h

ACSR[23:16]

Audio channel status block byte 2 set. Used when ACS_REGEN is set HIGH

28h (SD) 2Ch (HD)

ACSR[31:24],

ACSR[183:176]

Audio channel status block data for bytes 3 to 22. Used when ACS_REGEN

is set HIGH

00h

ACS_REGEN

Audio channel status regenerate

ACS_APPLY

Apply new ACSR data

ACS_APPLY_W

AIT[D:A]

Waiting to apply new ACSR data

ACS[7:0]:

ACS[183:176]

Audio channel status block data for bytes 0 to 22

00h: 00h

Table 4-25: Audio Channel Status Block for Regenerate Mode Default Settings

Name

Byte

Bit

Default

Mode

PRO

Professional use of channel status block

Emphasis

4:2

100b

100b None. Rec. manual override disabled

Sample Frequency

7:6

01b

48kHz. Manual override or auto disabled

Channel Mode

3:0

0001b

Two channels. Manual override disabled

AUX

2:0

000b

SD Mode: Maximum audio word length is 20 bits

001b

HD Mode: Maximum audio word length is 24 bits

Source Word Length

5:3

101b

Maximum word length (based on AUX setting).

24-bit for HD Mode; 20-bit for SD Mode

All other bits set to zero

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