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1.4.2VDOUTDataBusUsageforDisplayModes
1.5VideoPortPinMultiplexing
1.6VideoPortClocking
VideoPortPinMultiplexing
ThealignmentandusageofdataontheVDOUTbusdependsonthedisplaymodeasshownin
Table1-4.
Table1-4.VDOUTDataBusUsageforDisplayModes
(1)
DisplayMode
BT.656Y/CDualSyncRawDataRawData
DataBus8-Bit8-Bit8-Bit16-Bit
VDOUT19A(C)(B)A
VDOUT18A(C)(B)A
VDOUT17A(C)(B)A
VDOUT16A(C)(B)A
VDOUT15A(C)(B)A
VDOUT14A(C)(B)A
VDOUT13A(C)(B)A
VDOUT12A(C)(B)A
VDOUT9AA(Y)AA
VDOUT8AA(Y)AA
VDOUT7AA(Y)AA
VDOUT6AA(Y)AA
VDOUT5AA(Y)AA
VDOUT4AA(Y)AA
VDOUT3AA(Y)AA
VDOUT2AA(Y)AA
(1)
Legend:A–ChannelAdisplay;A(C)ChannelAchroma;A(Y)ChannelAluma;B–OptionallockedchannelBdisplay
NoneofthefiveVideoPorthavededicatedpinsassociatedwiththem.EachoftheVideoPorthasitspins
multiplexedwithotherperipherals.InordertouseadesiredVideoPorteitherinCaptureorDisplayMode,
theuserwouldfirstneedtoprogramthePinMuxRegister(PINMUX)appropriatelytoensurethatthe
multiplexedpinsworkasVideoPortpins.Refertothedevice-specificdatamanualtoknowdetailsofthe
PINMUXRegister.
EachoftheVideoPortshaveaLPSCassociatedwiththem.TheLPSCprovidesthemoduleclockand
resetcontrol.Onpowerup,theLPSC'sassociatedwithVideoPortsdonotgatetheclockrequiredforthe
VideoPorttofunction.UserwouldneedtoappropriatelyprogramtheLPSCassociatedwithVideoPortto
providetheclocktothedesiredVideoPortbeforetryingadatatransferoperation.Refertothe
device-specificmanualtoknowLPSCVideoPortassociationanddetailsofLPSCregisters.
28OverviewSPRUEM1–May2007
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