TAS5721_16 Datasheet, PDF (53/78 Pages) Texas Instruments – Digital Audio Power Amplifier

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TAS5721
SLOS739A – JULY 2012 – REVISED MARCH 2016
9.6.17 Channel 4 Source Select Register (0x21)
This register selects the channel 4 source.
D31
D30
D29
D28
0
0
0
0
D23
D22
D21
D20
0
0
0
0
D15
D14
D13
D12
0
1
0
0
–
–
–
–
–
–
–
–
D7
D6
D5
D4
0
0
0
0
(1) Default values are in bold.
Table 21. Subchannel Control Register (0x21)
D27
D26
D25
0
0
0
D24
0
Reserved ⁽¹⁾
FUNCTION
D19
D18
D17
0
0
0
D16
0
Reserved ⁽¹⁾
FUNCTION
D11
D10
D9
0
0
1
–
–
–
–
–
–
D8
Reserved ⁽¹⁾
FUNCTION
0
(L + R)/2
1
Left-channel post-BQ ⁽¹⁾
D3
D2
D1
0
0
1
D0
1
Reserved ⁽¹⁾
FUNCTION
9.6.18 PWM Output MUX Register (0x25)
This DAP output mux selects which internal PWM channel is output to the external pins. Any channel can be
output to any external output pin.
Bits D21–D20:
Bits D17–D16:
Bits D13–D12:
Bits D09–D08:
Selects which PWM channel is output to OUT_A
Selects which PWM channel is output to OUT_B
Selects which PWM channel is output to OUT_C
Selects which PWM channel is output to OUT_D
Note that channels are encoded so that channel 1 = 0x00, channel 2 = 0x01, …, channel 4 = 0x03.
See Table 22 for details.
Table 22. PWM Output Mux Register (0x25)
D31 D30 D29 D28 D27 D26 D25 D24
0
0
0
0
0
0
0
1 Reserved⁽¹⁾
FUNCTION
D23 D22 D21 D20 D19 D18 D17 D16
FUNCTION
0
0
–
–
–
–
–
– Reserved⁽¹⁾
–
–
0
0
–
–
–
– Multiplex PWM 1 to OUT_A ⁽¹⁾
–
–
0
1
–
–
–
– Multiplex PWM 2 to OUT_A
–
–
1
0
–
–
–
– Multiplex PWM 3 to OUT_A
–
–
1
1
–
–
–
– Multiplex PWM 4 to OUT_A
–
–
–
–
0
0
–
– Reserved ⁽¹⁾
–
–
–
–
–
–
0
0 Multiplex PWM 1 to OUT_B
–
–
–
–
–
–
0
1 Multiplex PWM 2 to OUT_B
–
–
–
–
–
–
1
0 Multiplex PWM 3 to OUT_B ⁽¹⁾
–
–
–
–
–
–
1
1 Multiplex PWM 4 to OUT_B
D15 D14 D13 D12 D11 D10 D9
0
0
–
–
–
–
–
–
–
0
0
–
–
–
–
–
0
1
–
–
–
D8
– Reserved ⁽¹⁾
FUNCTION
– Multiplex PWM 1 to OUT_C
– Multiplex PWM 2 to OUT_C⁽¹⁾
(1) Default values are in bold.
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