STA32813TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA32813TR

2.1-channel high-efficiency digital audio system

STMicroelectronics 

Register description

STA328

Table 29. Biquad coefficient link

Bit R/W RST

Name

Description

4

RW 0

BQL

Biquad Link:

0: each channel uses coefficient values

1: each channel uses channel 1 coefficient values

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.

Table 30. Dynamic range compression/anti-clipping bit

Bit R/W RST

Name

Description

5

RW 0

DRC

Dynamic range compression/anti-clipping

0: limiters act in anti-clipping mode

1: limiters act in dynamic range compression mode

Both limiters can be used in one of two ways, anti-clipping or dynamic range compression.

When used in anti-clipping mode the limiter threshold values are constant and dependent on

the limiter settings. In dynamic range compression mode the limiter threshold values vary

with the volume settings allowing a nighttime listening mode that provides a reduction in the

dynamic range regardless of the volume level.

Table 31. Zero detect mute enable

Bit R/W RST

Name

Description

6

RW 1

ZDE

Zero detect mute enable: setting of 1 enables the

automatic zero-detect mute

Setting the ZDE bit enables the zero-detect automatic mute. When ZDE = 1, the zero detect

circuit looks at the input data to each processing channel after the channel-mapping block. If

any channel receives 2048 consecutive zero value samples (regardless of fs) then that

individual channel is muted if this function is enabled.

Table 32. Miami mode enable

Bit R/W RST

Name

7

RW 0

MME

Description

Miami mode enable:

0: sub mix into left/right disabled

1: sub mix into left/right enabled

28/57

Share Link: