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3.13.15TCISystemTimeClockMSBRegister(TCISTCLKM)
VideoCaptureRegisters
Figure3-34.TCISystemTimeClockLSBRegister(TCISTCLKL)
310
PCR
R/W-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table3-27.TCISystemTimeClockLSBRegister(TCISTCLKL)FieldDescriptions
Description
Bitfieldsymval
(1)
ValueBT.656,Y/CMode,orRawDataModeTCIMode
31-0PCROF(value)0-FFFFFFFFhNotused.Containsthe32LSBsoftheprogram
clockreference.
DEFAULT0
(1)
ForCSLimplementation,usethenotationVP_TCISTCLKL_PCR_symval
ThetransportstreaminterfacesystemtimeclockMSBregister(TCISTCLKM)containsthemost-significant
bit(MSB)oftheprogramclockreference(PCR)andthe9bitsofthePCRextension.Thesystemtime
clockvalueisobtainedbyreadingTCISTCLKMandTCISTCLKL.
ThePCREvaluechangesata27-MHzrateandisprobablynotreliablyreadbytheDSP.ThePCRMbit
normallychangesata10.5-µHzrate(every26hours).
TheTCIsystemtimeclockMSBregister(TCISTCLKM)isshowninFigure3-35anddescribedin
Table3-28.
Figure3-35.TCISystemTimeClockMSBRegister(TCISTCLKM)
3116
Reserved
R-0
1510910
ReservedPCREPCRM
R-0R/W-0R/W-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table3-28.TCISystemTimeClockMSBRegister(TCISTCLKM)FieldDescriptions
Description
BT.656,Y/CMode,orRawDataTCIMode
Bitfield
(1)
symval
(1)
ValueMode
31-10Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothis
fieldhasnoeffect.
9-1PCREOF(value)0-1FFhNotused.Containstheextensionportionofthe
programclockreference.
DEFAULT0
0PCRMOF(value)0-1Notused.ContainstheMSBoftheprogram
clockreference.
DEFAULT0
(1)
ForCSLimplementation,usethenotationVP_TCISTCLKM_field_symval
SPRUEM1–May2007VideoCapturePort87
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