
DOWNMIX INPUT MULTIPLEXER REGISTER (0x21)
SLES131C – FEBRUARY 2005 – REVISED JUNE 2008 ................................................................................................................................................... www.ti.com
Bits D31–D16: Unused
Bits D15–D13: For this description, see
Figure 6.Bit D12: If 1, selects downmix data L’ to TAS5086 internal channel 1
If 0, selects channel 1 data (from input multiplexer 1) to the TAS5086 internal channel 1
Bit D11: If 1, selects downmix data R’ to the TAS5086 internal channel 2
If 0, selects channel 2 data (from input multiplexer 2) to the TAS5086 internal channel 2
Bit D10: If 1, selects downmix data (L’+R’)/2 to the TAS5086 internal channel 5
If 0, selects channel 5 data (from input multiplexer 5) to the TAS5086 internal channel 5
Bits D9-D8: Selects either channel 6 data (from input multiplexer 6) or channel 6 data that has been
processed through bass management block or downmix data (L’+R’)/2 to the TAS5086 internal
channel 6
Bits D7–D5: Unused.
Bit D4: If 1, enable data from input multiplexer 5 to downmix block
If 0, disable data from input multiplexer 5 to downmix block
Bit D3: If 1, enable data from input multiplexer 4 to downmix block
If 0, disable data from input multiplexer 4 to downmix block
Bit D2: If 1, enable data from input multiplexer 3 to downmix block
If 0, disable data from input multiplexer 3 to downmix block
Bit D1: If 1, enable data from input multiplexer 2 to downmix block
If 0, disable data from input multiplexer 2 to downmix block
Bit D0: If 1, enable data from input multiplexer 1 to downmix block
If 0, disable data from input multiplexer 1 to downmix block
Table 18. Downmix Input Multiplexer Register
D31
D30
D29
D28
D27
D26
D25
D24
FUNCTION
–
Unused
D23
D22
D21
D20
D19
D18
D17
D16
FUNCTION
–
Unused
D15
D14
D13
D12
D11
D10
D9
D8
FUNCTION
0
1
0
–
RESERVED
–
1
–
Enable downmix data L’ to channel 1
–
0
–
Enable channel 1 data to channel 1
–
1
–
Enable downmix data R’ to channel 2
–
0
–
Enable channel 2 data to channel 2
–
1
–
Enable downmix data (L’+R’)/2 to channel 5
–
0
–
Enable channel 5 data to channel 5
–
0
Enable channel 6 data to channel 6
–
0
1
Bass management on channel 6
–
1
x
Enable downmix data (L’+R’)/2 to channel 6
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