STA310 datasheet(82/90 Pages) STMICROELECTRONICS

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STA310

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LPCMV_DM_COEFT_5

Downmix gain coefficients 5

For details see register 0x9C

PCMV_DM_COEFT_6

Downmix gain coefficients 6

For details see register 0x9D

LPCMV_DM_COEFT_7

Downmix gain coefficients 7

For details see register 0x9E

LPCMV_DM_COEFT_8

Downmix gain coefficients 8

For details see register 0x9F

LPCMV_DM_COEFT_9

Downmix gain coefficients 9

For details see register 0xA0

PCMV_DM_COEFT_10

Downmix gain coefficients 10

For details see register 0xA1

LPCMV_DM_COEFT_11

Downmix gain coefficients 11

For details see register 0xA2

LPCMV_DM_COEFT_12

Downmix gain coefficients 12

For details see register 0xA3

LPCMV_DM_COEFT_13

Downmix gain coefficients 13

For details see register 0xA4

Note: For DVD video & PCM, the real coefficient value, alpha[x], ap-

plied to channel x is calculated with the following formulae:

alpha[x] = 2-(x+(y/30)) 0<Y,29 0<X,7

COEF_xL = register bits [b7,b6,b5,b4,b3,b2,b1,b0]

X = register bits[b7,b6,b5]

Y = register bits[b4,b3,b2,b1,b0

LPCMV_STATUS0

Address: 0x76

Type: R/W

Reset Value: UND

Description:

LPCMV_STATUS1

Address :0x77

Type: R/W

Reset Value: UND

Description:

EMPH_

FLAG

MUTE_

FLAG

Reserved

FRAME_NUM

Bitfield

Description

FRAME_NU

frame number of the first access unit in

the group of audio frames

Reserved

Set to 0

MUTE_FLAG 0: mute off, 1: mute on

EMPH_FLAG Emphasis status after the first access

unit: 0: emphasis off; 1: emphasis on

Word_Length Samp_Freq Reserved

Channels

Bitfield

Description

Channels

Number of audio channels:000=1

channel (mono), 001=2 channels

(stereo), 010=3 channels,

011=4 channels, 100=5

channels,101=6 channels, 110=7

channels, 111=8 channels

Reserved

Set to 0

Samp_Freq

Sampling frequency: 00=48kHz,

01=96kHz, 10=reserved, 11=reserved

Word_Length

Audio sample length: 00=16 bits,

01=20 bits, 10=24 bits, 11=reserved

STA310 Datasheet(PDF) 82 Page - STMicroelectronics

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