7.4SystemControlRegister1(0x03)
7.5SystemControlRegister2(0x04)
7.6ChannelConfigurationControlRegisters(0x05–0x0C)
TAS5518C
8-ChannelDigitalAudioPWMProcessor
SLES238A–SEPTEMBER2008–REVISEDJULY2009
www.ti.com
Table7-3.ErrorStatusRegister(0x02)(continued)
D7D6D5D4D3D2D1D0FUNCTION
00000000Noerrors
BitsD6,D5,D2,D1,andD0aredon'tcare.
Table7-4.SystemControlRegister-1Format
D7D6D5D4D3D2D1D0Function
0–––––––PWMhighpassdisabled
1–––––––PWMhighpassenabled
–––0––––Softunmuteonrecoveryfromclockerror
–––1––––Hardunmuteonrecoveryfromclockerror
––––1–––PSVCHi-Zenabled
––––0–––PSVCHi-Zdisabled
BitsD3andD2aredon'tcare.
Table7-5.SystemControlRegister-2Format
D7D6D5D4D3D2D1D0Function
0–––––Reserved
–0––––PWMoutputautomutedetectionenabled
–1––––PWMoutputautomutedetectiondisabled
––0–––8-channeldeviceinputdetectionautomuteenabled
––1–––8-channeldeviceinputdetectionautomutedisabled
–––0––Unmutethreshold6dBoverinputthreshold
–––1––Unmutethresholdequaltoinputthreshold
––––00Node-emphasis
––––01De-emphasisforf
S
=32kHz
––––10De-emphasisforf
S
=44.1kHz
––––11De-emphasisforf
S
=48kHz
Channels1,2,3,4,5,6,7,and8aremappedinto0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,and0x0C,
respectively.
Table7-6.ChannelConfigurationControlRegisterFormat
D7D6D5D4D3D2D1D0FUNCTION
0––––––Disableback-endresetsequenceforachannel.
1––––––Enableback-endresetsequenceforachannel.
–0–––––Validdoesnothavetobelowforthischanneltobereset.
–1–––––Validmustbelowforthischanneltobereset.
––0––––Validdoesnothavetobelowforthischanneltobemuted.
––1––––Validmustbelowforthischanneltobemuted.
–––0–––NormalBEPolarity
–––1–––SwitchesPWM+andPWM–andinvertsaudiosignal
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