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TMS320DM355
DigitalMediaSystem-on-Chip(DMSoC)
SPRS463A–SEPTEMBER2007–REVISEDSEPTEMBER2007
blendingforthatcorrespondingvideopixel)
•AbilitytoresizefromVGAtoNTSC/PAL(640x480to720x576)forboththeOSDandvideowindows
•Horizontalrescalingx1.5issupported
•Supportforarectangularcursorwindowandaprogrammablebackgroundcolorselection.
•Thewidth,height,andcolorofthecursorisselectable
•Thedisplaypriorityis:Rectangular-Cursor>OSDWIN1>OSDWIN0>VIDWIN1>VIDWIN0>
backgroundcolor
•SupportforattenuationoftheYCbCrvaluesfortheREC601standard.
ThefollowingrestrictionsexistintheOSDmodule.
•Iftheverticalresizefilterisenabledforeitherofthevideowindows,themaximumhorizontalwindow
dimensioncannotbegreaterthan720currently.Thisisduetothelimitationinthesizeoftheline
memory.
•ItisnotpossibletousebothoftheCLUTROMsatthesametime.However,awindowcanuseRAM
whileanotherusesROM.
5.9.2.2VideoEncoder/DigitalLCDController(VENC/DLCD)
TheVENC/DLCDconsistsofthreemajorblocks;a)thevideoencoderthatgeneratesanalogvideooutput,
b)thedigitalLCDcontrollerthatgeneratesdigitalRGB/YCbCrdataoutputandtimingsignals,andc)the
timinggenerator.
Thevideoencoderforanalogvideosupportsthefollowingfeatures:
•MasterClockInput-27MHz(x2Upsampling)
•ProgrammableTimingGenerator
•SDTVSupport
–CompositeNTSC-M,PAL-B/D/G/H/I
–Non-Interlaceoption
–CGMS/WSS
–Line21ClosedCaptionDataEncoding
–ChromaLowPassFilter1.5MHz/3MHz
–ProgrammableSC-Hphase
•10-bitOver-SamplingD/AConverter(27MHz)
•Internalanalogvideobuffer
•Optional7.5%Pedestal
•16-235/0-255InputAmplitudeSelectable
•ProgrammableLumaDelay
•Master/SlaveOperation
•InternalColorBarGeneration(75%)
ThedigitalLCDcontrollersupportsthefollowingfeatures:
•ProgrammableDCLK
•ProgrammableTimingGenerator
•VariousOutputFormat
–YCbCr16bit
–YCbCr8bit
–ITU-RBT.656
–ParallelRGB16-bit/18-bit
–Serial8-bitRGB
•LowPassFilterforDigitalRGBOutput
•Master/SlaveOperation
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