sta381bws STMicroelectronics, sta381bws Datasheet - Page 112
sta381bws
Manufacturer Part Number
sta381bws
Description
Sound Terminal 2.1-channel High-efficiency Digital Audio System Sound Terminal 2.1-channel High-efficiency Digital Audio System
Manufacturer
STMicroelectronics
Datasheet
1.STA381BWS.pdf
(168 pages)
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Register description: Sound Terminal compatibility
7.4.2
7.4.3
7.4.4
7.4.5
7.5
112/168
Post-scale link
Table 114. 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.
Biquad coefficient link
Table 115. 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.
Zero-detect mute enable
Table 116. Zero-detect mute enable
Refer to
0x54).
Submix mode enable
Table 117. Submix mode enable
Configuration register E (addr 0x04)
Bit
Bit
Bit
Bit
3
4
6
7
SVE
D7
1
R/W
R/W
7.24: Enhanced zero-detect mute and input level measurement (address 0x50-
R/W
R/W
R/W
R/W
R/W
R/W
ZCE
D6
0
RST
RST
RST
RST
0
1
1
0
Reserved
D5
0
Name
Doc ID 018937 Rev 2
SME
Name
Name
Name
BQL
ZDE
PSL
PWMS
D4
0
0: Submix into left/right disabled
1: Submix into left/right enabled
0: Each channel uses individual post-scale value
1: Each channel uses channel 1 post-scale value
0: Each channel uses coefficient values
1: Each channel uses channel 1 coefficient values
Setting of 1 enables the automatic zero-detect mute
Setting of 0 disables the automatic zero-detect mute
AME
D3
0
NSBW
Description
Description
Description
Description
D2
0
Reserved
D1
1
STA381BWS
Reserved
D0
0
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