STA381BWS datasheet(113/171 Pages) STMICROELECTRONICS

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STA381BWS

Doc ID 018937 Rev 6

113/171

7.4.2

Post-scale link

Post-scale functionality can be used for power supply error correction. For multi-channel

applications running off the same power supply, the post-scale values can be linked to the

value of channel 1 for ease of use and in order to update the values faster.

7.4.3

Biquad coefficient link

For ease of use, all channels can use the biquad coefficients loaded into the channel-1

coefficient RAM space by setting the BQL bit to 1. Therefore, any EQ updates only have to

be performed once.

7.4.4

Zero-detect mute enable

Refer to 7.24: Enhanced zero-detect mute and input level measurement (address 0x50-

0x54, 0x2E, 0x2F and 0x5E).

7.4.5

Submix mode enable

7.5

Configuration register E (addr 0x04)

Table 115.

Post-scale link

Bit

R/W

RST

Name

Description

R/W

PSL

0: Each channel uses individual post-scale value

1: Each channel uses channel 1 post-scale value

Table 116.

Biquad coefficient link

Bit

R/W

RST

Name

Description

4R/W

BQL

0: Each channel uses coefficient values

1: Each channel uses channel 1 coefficient values

Table 117.

Zero-detect mute enable

Bit

R/W

RST

Name

Description

6R/W

ZDE

Setting of 1 enables the automatic zero-detect mute

Setting of 0 disables the automatic zero-detect mute

Table 118.

Submix mode enable

Bit

R/W

RST

Name

Description

7R/W

SME

0: Submix into left/right disabled

1: Submix into left/right enabled

SVE

ZCE

Reserved

PWMS

AME

NSBW

Reserved

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