Filter
Top Products
6.2TCP2InputConfigurationRegister0(TCPIC0)
Registers
www.ti.com
TheTCP2inputconfigurationregister0(TCPIC0)isshowninFigure33anddescribedinTable6.TCPIC0
configurestheTCP.
Figure33.TCP2InputConfigurationRegister0(TCPIC0)
313016
RsvdFL
R/W-0R/W-0
1514131211108
ReservedNUMSWOUTFINTERReservedRATE
R/W-0R/W-0R/W-0R/W-0R/W-0R/W-0
73210
ReservedOPMODReserved
R/W-0R/W-0R/W-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table6.TCP2InputConfigurationRegister0(TCPIC0)FieldDescriptions
BitFieldValueDescription
31Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhasnoeffect.
30-16FL40-Framelength.Framesize(shouldnotincludetailsymbols).
20730
15Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhasnoeffect.
14NUMSWNumberofslidewindowpersub-block
0Blocksize3128
1Blocksize>128
13OUTFOutputparametersreadflag(SAmodeonly,mustbesetto0forSPmode).
0NoREVTgeneration.OutputparametersarenotreadviaEDMA3.
1REVTgenerationforoutputparametersforEDMA3read.
12INTERInterleaverwriteflag.Onlyusedinstandalonemode.
0InterleavertableisnotsenttotheTCP2
1InterleavertableissenttotheTCP2
11Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhasnoeffect.
10-8RATECoderate=1/rateexceptfor0=3/4
7-3Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhasnoeffect.
2-1OPMOD0-3hOperationalmode.ThistwobitsignaldefinestheprocessingmodefortheTCP2.Ifthesizeofthe
frameislessthanorequalto20,730,thentheTCP2isinthemoreefficientstandalonemode.Ifthe
sizeoftheframeisgreaterthan20,730,thentheTCP2isinsharedmode.
00Standalonemode
01Shared-processingmodefirstsubframe
10Shared-processingmodemiddlesubframe
11Shared-processingmodelast
Sharedmodebreakstheframeintosmallerframescalledsubframes.Thesizeofeachsubframe
(exceptthelastsubframe)mustbeanintegermultipleof256.Forsubframeequations,see
Figure17.
0Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhasnoeffect.
Intheaboveregister,whentheOPMODfieldis01b,itrepresentsthefirstsubframe,10brepresents
middlesubframes,and11brepresentsthelastsubframe.TheTCP2needstoknowwhichtypeof
subframeitisprocessingsothatitcancorrectlyinitializetheprologsections.
TMS320C6457Turbo-DecoderCoprocessor2 28SPRUGK1–March2009
SubmitDocumentationFeedback