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STA308

3.20 Channel Input Mapping Channels 7 & 8 (address 14h)

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

DDX-8000 Output Phasing

BIT

D7

D6

D5

D4

D3

D2

D1

D0

NAME

C8IM2

C8IM1

C8IM0

C7IM2

C7IM1

C7IM0

RST

11

1

1

1

0

CxIM(2..0)

000

Channel 1

001

Channel 2

010

Channel 3

011

Channel 4

100

Channel 5

101

Channel 6

110

Channel 7

111

Channel 8

CH1

CH2

CH3

CH4

CH5

CH6

CH7

CH8

1/384kHz or 2.874us

8:1

Mux

Channel 1

Channel 2

Channel 3

Channel 4

Channel 5

Channel 6

Channel 7

Channel 8

Channel X

CxIM(2..0)

3