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STA309a stereo input to 2.1 output

Question asked by jslv on Sep 24, 2015
Latest reply on Oct 22, 2015 by zhao.yuntao

STA309a documentation is little bit lacking on this topic, so some explanation is needed.

Required configuration:
Single stereo I2S input on SDI12
Two I2S outputs: stereo to main speakers and mono to subwoofer

1. What is the correct output I2S mapping: SDO12 to main speakers and SDO56 to subwoofer (right or left)?

2. Can you tell if the following configuration is correct?
AMBMME and AMBMXE bits enabled (bass mix and crossover)
CSS and RSS set to 10 (off)
SUB enabled
FSS and XO bits sets according to speaker configuration