STV82X7 datasheet(105/156 Pages) STMICROELECTRONICS

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STV82x7

12.15 Audio Processing

PRO_LOGIC2_CONTROL

Address: AAh

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

PL2_LFE

PL2_OUTPUT_DOWNMIX[2:0]

PL2_MODES[2:0]

PL2_ACTIVE

Bit Name

Reset

Function

PL2_LFE

0: Reset the LFE channel

1: Bypass the LFE channel

PL2_OUTPUT_

DOWNMIX[2:0]

000

000: not applicable

001: not applicable

010: not applicable

011: 3/0 output mode (L,R,C)

100: 2/1 output mode (L,R,Ls - phantom)

101: 3/1 output mode (L,R,C,Ls)

110: 2/2 output mode (L,R,Ls,Rs - phantom)

111: 3/2 output mode (L,R,C,Ls,Rs)

PL2_MODES[2:0]

000

000: Pro Logic 1 Emulation (forced if DPL version)

001: Virtual (DPL2 version only)

010: Music (DPL2 version only)

011: Movie (standard) (DPL2 version only)

100: Matrix (DPL2 version only)

101: Custom (DPL2 version only)

110: not applicable (DPL2 version only)

111: not applicable (DPL2 version only)

PL2_ACTIVE

0: Dolby Prologic 2 is not active

1: Dolby Prologic 2 is active

Table 27: Prologic II Decode Mode Configuration

PL2

Mode

Decode Mode

Dimension

Center Width

Auto-

Balance

Panorama

Surround

Coherence

SUR

Filtering

Pro Logic

Emulation

Virtual

Music

Movie/

Standard

Matrix

Custom

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