TAS5705
www.ti.com ...................................................................................................................................................................................................... SLOS549–JUNE 2008
PWM SHUTDOWN GROUP REGISTER (0x19)
Settings of this register determine which PWM channels are active. The default is 0x30 for two BTL output
channels and no external subwoofer output. The functionality of this register is tied to the state of bit D5 in the
system control register.
This register defines which channels belong to the shutdown group (SDG). If a 1 is set in the shutdown group
register, that particular channel is not started following an exit out of all-channel shutdown command (if bit D5 is
set to 0 in system control register 2, 0x05).
Table 20. Shutdown Group Register
D7
0
–
–
–
–
–
–
–
–
–
–
–
–
–
D6
–
0
–
–
–
–
–
–
–
–
–
–
–
–
D5
–
–
0
1
–
–
–
–
–
–
–
–
–
–
D4
–
–
–
–
0
1
–
–
–
–
–
–
–
–
D3
–
–
–
–
–
–
0
1
–
–
–
–
–
–
D2
–
–
–
–
–
–
–
–
0
1
–
–
–
–
D1
–
–
–
–
–
–
–
–
–
–
0
1
–
–
D0
–
–
–
–
–
–
–
–
–
–
–
–
0
1
FUNCTION
(1)
(1)
Reserved
Reserved
(1)
(1)
Channel 6 does not belong to shutdown group.
Channel 6 belongs to shut down group.
Channel 5 does not belong to shutdown group.
Channel 5 belongs to shutdown group.
(1)
(1)
(1)
(1)
Channel 4 does not belong to shutdown group.
Channel 4 belongs to shutdown group.
Channel 3 does not belong to shutdown group.
Channel 3 belongs to shutdown group.
Channel 2 does not belong to shutdown group.
Channel 2 belongs to shutdown group.
Channel 1 does not belong to shutdown group.
Channel 1 belongs to shutdown group.
(1) Default values are in bold.
Copyright © 2008, Texas Instruments Incorporated
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