Datasheet

LM49370
SNAS356D –FEBRUARY 2007–REVISED MARCH 2012 www.ti.com
SRC CONFIGURATION REGISTER
This register is used to control the configuration of the Digital Routing interfaces.
(2)
Table 37. Bridges (0x1Eh)
Bits Field Description
0 PCM_TX_SEL This controls the data sent to the PCM transmitter.
PCM_TX_SEL Source
0 ADC
1 MONO SUM Circuit
2:1 I2S_TX_SEL This controls the data sent to the I
2
S transmitter.
I2S_TX_SEL Source
00
2
ADC
01
2
PCM Receiver
10
2
DAC Interpolator (oversampled)
11
2
Disabled
4:3 DAC_INPUT_SEL This controls the data sent to the DAC.
DAC_INPUT_SEL Source
00
2
I2S Receiver (In stereo)
01
2
PCM Receiver (Dual Mono)
10
2
ADC
11
2
Disabled
5 MONO_SUM_SEL This controls the data sent to the Stereo to Mono Converter
MONO_SUM_SEL Source
0 DAC Interpolated Output
1 I2S Receiver Output
7:6 MONO_SUM_MODE This controls the operation of the Stereo to Mono Converter.
MONO_SUM_ MODE Operation
00
2
(Left + Right)/2
01
2
Left
10
2
Right
11
2
(Left + Right)/2
(2) Please refer to the Application Note AN-1591 (SNAA039) for the detailed discussion on how to use the I
2
S to PCM Bridge.
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