sta339bw STMicroelectronics, sta339bw Datasheet - Page 50

• Manufacturer Part Number: sta339bw
• Description: 2.1-channel High-efficiency Digital Audio System
• Manufacturer: STMicroelectronics

Register description
6.9.3
6.9.4
6.9.5
6.9.6
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Volume bypass
Each channel contains an individual channel volume bypass. If a particular channel has
volume bypassed via the CxVBP = 1 register then only the channel volume setting for that
particular channel affects the volume setting, the master volume setting will not affect that
channel.
Binary output enable registers
Each individual channel output can be set to output a binary PWM stream. In this mode
output A of a channel is considered the positive output and output B is negative inverse.
Table 62.
Limiter select
Limiter selection can be made on a per-channel basis according to the channel limiter select
bits.
Table 63.
Output mapping
Output mapping can be performed on a per channel basis according to the CxOM channel
output mapping bits. Each input into the output configuration engine can receive data from
any of the three processing channel outputs.
Table 64.
0
1
00
01
10
00
01
10
.
.
CxOM[1:0]
CxLS[1:0]
CxBO
Binary output enable registers
Channel limiter mapping as a function of CxLS bits
Channel output mapping as a function of CxOM bits
Channel has limiting disabled
Channel is mapped to limiter #1
Channel is mapped to limiter #2
Channel1
Channel 2
Channel 3
FFX 3-state output - normal operation
Binary output
Doc ID 15251 Rev 4
Channel x output source from
Channel limiter mapping
Mode
STA339BW