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13.1.10UnexpectedMaxandMinIterations:MAXMINITER
13.2Status
13.2.1TCP2DecoderStatus:dec_busy
13.2.2TCP2StoppedDuetoError:ERR
13.2.3TCP2WaitingforInputControlParametersWrite:WIC
13.2.4TCP2WaitingforInterleaverTableWrite:WINT
13.2.5TCP2WaitingforSystematicsandParitiesWrite:WSP
13.2.6TCP2WaitingforApriorisWrite:WAP
13.2.7TCP2WaitingforExtrinsicsRead:REXT
13.2.8TCP2WaitingforHard-DecisionsRead:RHD
13.2.9TCP2WaitingforOutputParametersRead:ROP
13.2.10TCP2HaltedDuetoEmulation:emuhalt
13.2.11TCP2ActiveMapstatus:Active_map
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ErrorsandStatus
TheMAXMINITERbitissetto1iftheminimumiterationsaregreaterthanthemaximumiterations.
TheTCP2statusregister(TCPSTAT)reflectsthestateoftheTCP2.
Thedec_busyissetto0iftheMAPdecoderisinstate0.Thedec_busyissetto1iftheMAPdecoderis
instates1to8.
TheERRbitissetto1iftheTCP2hasencounteredanerror.TheERRbitisresetbywritinganew
STARTcommandintheTCP2executionregister(TCPEXE).
TheWICbitissetto1whentheTCP2iswaitingfortheinputconfigurationsparameterstobewritten.
Aftertheveryfirstdecodingisfinished,anXEVTisgeneratedtoallowanyreadyuser-channeltobe
decodedandtheWICbitissetto1.
TheWINTbitissetto1whentheTCP2iswaitingfortheinterleavertabletobewritten.
TheWSPbitissetto1whentheTCP2iswaitingforthesystematicsandparitiestobewritten.
TheWAPbitissetto1whentheTCP2iswaitingfortheaprioristobewritten.
TheREXTbitissetto1whentheTCP2iswaitingfortheextrinsicstoberead.
TheRHDbitissetto1whentheTCP2iswaitingfortheharddecisionstoberead.
TheROPbitissetto1whentheTCP2iswaitingfortheoutputparameterstoberead.
Theemuhaltbitissetto1whentheTCP2ishaltedduetoemulation.
Theactive_mapbitissetto1whentheTCP2isprocessingMAP1.
SPRUGK1–March2009TMS320C6457Turbo-DecoderCoprocessor277
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