sta381bw STMicroelectronics, sta381bw Datasheet - Page 67

• Manufacturer Part Number: sta381bw
• Description: Sound Terminal 2.1-channel High-efficiency Digital Audio System
• Manufacturer: STMicroelectronics

STA381BW
6.19
6.19.1
Volume control registers (addr 0x17 - 0x1B)
Mute/line output configuration register (addr 0x17)
Table 54.
Line output is only active when OCFG = 00. In this case LOC determines the line output
configuration. The source of the line output is always the channel 1 and 2 inputs.
Table 55.
Bit
3
2
1
0
LOC1
LOC[1:0]
D7
0
00
01
10
11
R/W
R/W
R/W
R/W
R/W
Line output configuration
Mute configuration
LOC0
D6
0
RST
Line output fixed - no volume, no EQ
Line output variable - CH3 volume effects line output, no EQ
Line output variable with EQ - CH3 volume effects line output
Reserved
0
0
0
0
Reserved
D5
0
MMUTE
Name
Doc ID 018835 Rev 2
C3M
C2M
C1M
Reserved
D4
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
Line output configuration
C3M
D3
0
Register description: New Map
Description
C2M
D2
0
C1M
D1
0
MMUTE
D0
0
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