6.1 Functional OverviewThe Video Input module provides following features:• support of different video data formats:- RGB(565)- RGB(666)- YUV(4:2:2) in Y1:U:Y2:V or U:Y1:V:Y2 order- progressive scan supported- interlaced scan supported (both fields stored in separateframebuffers)• support of different synchronization and clock modes:- ITU-R656 embedded sync mode- composite sync CSYNC with built-in sync separator- separate sync HSYNC and VSYNC- selectable polarity of sync signals- valid VInCLK data input clock edge selectable• data format conversion:- Video Input data RGB(565) to internal 24-bit RGB(888)- Video Input data YUV to internal 24-bit RGB(888)- internal 24-bit RGB(888) to framebuffer 16-bit RGB(565)• adjustment of YUV input data:- brightness- colour saturation- contrast- replacement of U and V component with predefined value• up/-downscaling and cropping in x-direction• downscaling and cropping in y-direction• scalable dithering for reducing visible luminance steps, due to 16-bitcolour format• built-in 32 x 32-bit FIFO for burst transfer of RGB(565) data toframebuffer• support video input data streams up to the resolution of 2048 x 1024pixels, where maximum framebuffer size for captured video is 1024x 1024 pixels (downscaling to maximum framebuffer resolution 1024x 1024 is mandatory for input data streams with higher resolutions)Below diagram shows the functional blocks of the Video Input module.Chapter 6 Video Input (Ravin-M only)152 Preliminary User's Manual S19203EE1V3UM00
