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6.12TCP2InputConfigurationRegister9(TCPIC9)
Registers
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TheTCP2inputconfigurationregister9(TCPIC9)isshowninFigure42anddescribedinTable16.
TCPIC9setsthetailbitsusedbytheTCP.
Figure42.CP2InputConfigurationRegister9(TCPIC9)
3118170
ReservedTAIL4
R/W-0R/W-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table16.CP2InputConfigurationRegister9(TCPIC9)FieldDescriptions
BitFieldValueDescription
31-18Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhas
noeffect.
17-0TAIL40-FFFFFFFFhTailbit.Valuesmustbesetasinthefollowinglist.
•CDMA-2000TailSymbolPatternforCodeRate1/5
tail+2tail+1tail+0
(x20+x20+x20)/3(x20+x20+x20)/3
(x20+x20+x20)/3
•CDMA-2000TailSymbolPatternforCodeRate1/4,1/3
tail+2tail+1tail+0
(x20+x20)/2(x20+x20)/2(x20+x20)/2
•CDMA-2000TailSymbolPatternforCodeRate1/2or3/4
tail+2tail+1tail+0
x20x20x20
•CDMA-2000TailSymbolPatternforCodeRate1/5or1/4
tail+2tail+1tail+0
x20x20x20
•CDMA-2000TailSymbolPatternforCodeRate1/3,1/2,or3/4
tail+2tail+1tail+0
x20x20x20
TMS320C6457Turbo-DecoderCoprocessor2 36SPRUGK1–March2009
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