sta381bws STMicroelectronics, sta381bws Datasheet - Page 122

• 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

Register description: Sound Terminal compatibility
7.7.2
7.7.3
7.7.4
7.7.5
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Table 132. MUTE configuration
Master volume register
Channel 1 volume
Channel 2 volume
Channel 3 / line output volume
The volume structure of the STA381BWS consists of individual volume registers for each
channel and a master volume register that provides an offset to each channel’s volume
setting. The individual channel volumes are adjustable in 0.5 dB steps from +48 dB to
-80 dB.
Bit
3
2
1
0
D7
D7
D7
D7
1
0
0
0
R/W
R/W
R/W
R/W
R/W
D6
D6
D6
D6
1
1
1
1
RST
0
0
0
0
D5
D5
D5
D5
1
1
1
1
MMUTE
Name
Doc ID 018937 Rev 2
C3M
C2M
C1M
D4
D4
D4
D4
1
0
0
0
CH1VOL[7:0]
CH2VOL[7:0]
CH3VOL[7:0]
Channel 3 MUTE
0 - No Mute condition. It is possible to set the channel
volume
1 - Channel 3 in hardware mute
Channel 2 MUTE
0 - No Mute condition. It is possible to set the channel
volume
1 - Channel 2 in hardware mute
Channel 1 MUTE
0 - No Mute condition. It is possible to set the channel
volume
1 - Channel 1 in hardware mute
Master Mute
0 - Normal operation
1 - ALL channels are in mute condition
MVOL[7:0]
D3
D3
D3
D3
1
0
0
0
Description
D2
D2
D2
D2
1
0
0
0
D1
D1
D1
D1
1
0
0
0
STA381BWS
D0
D0
D0
D0
1
0
0
0