7.1 Functional OverviewThe Video Output module provides following features:• digital interface to TFT displays with up to 18 bpp resolution in RGB(666) format• support of different synchronization signals:- composite sync CSYNC- separate sync HSYNC and VSYNC- selectable polarity of sync signals- programmable timing of HSYNC and VSYNC- valid VOnCLK data input clock edge selectable• support of different colour formats:- internal 8 bpp CLUT(8) via 256 entries CLUT (colour look-uptable) to external iRGB(1555)- internal true colour 16 bpp RGB(565) to external RGB(565)- internal true colour 24 bpp RGB(888) to external RGB(666)• display geometry:- width and height programmable- maximum resolution (1024 x 1024) pixelsBelow diagram shows the functional blocks of the Video Output module.Sync and clockgeneratorVOnR[5:0]VOnG[5:0]VOnB[5:0]VOnVSYNCVOnHSYNCVOnCLKVOnENFIFO DMAtrue colourVOnMBEINTVOnCLK VOnRAMEN VOnFUFINT VOnBAINT VOnVCPINTVOnINTAHBAHBAHB slave I/FRegistersCLUTPaletteRAMAHB master I/FFigure 7-1 Video Output module block diagramChapter 7 Video Output190 Preliminary User's Manual S19203EE1V3UM00
