21/33

STA306

Each channel received via I2S can be mapped to any internal processing channel via the Channel Input Map-

ping registers. This allows for flexibility in processing, simplifies output stage designs, and enables the ability

to perform crossovers. The default settings of these registers map each I2S input channel to its corresponding

processing channel.

For example, to map input 2 to Channel 5, set Address 11h, bits D6, D5 and D4 to 100. Now, inputs 2 and 5 go

to Channel 5.

Table 6. Channel Mapping as a function of CxIM bits

STA306 Output Phasing

CxIM(2..0)

000

Channel 1

001

Channel 2

010

Channel 3

011

Channel 4

100

Channel 5

101

Channel 6

CH1

CH2

CH3

CH4

CH5

CH6

1/384kHz or 2.874us

CH1

CH2

CH3

CH4

CH5

CH6

1/384kHz or 2.874us

6:1

Mux

Channel 1

Channel 2

Channel 3

Channel 4

Channel 5

Channel 6

Channel X

CxIM(2..0)

3

6:1

Mux

Channel 1

Channel 2

Channel 3

Channel 4

Channel 5

Channel 6

Channel X

CxIM(2..0)

3