1.1 Block diagramsThe block diagrams below show the functional modules of Ravin-M and Ravin-L,the bus systems and the external signals.APB slaveAPB AHBDrawingEngineVO0CLKVO0CLKHCLKHCLK HCLKHCLKHCLKVO1CLK VO1CLKSYSRESETSYSRESETSYSRESET SYSRESETSYSRESETSYSRESETVideoInputVI0SYNC1VI0CLKVI0SYNC2VI0R[5:0]VI0G[5:0]VI0B[5:0]ITU0[7:0]VideoOutput1VO1HSYNCVO1VSYNCVO1CLKVO1R[5:0]VO1G[5:0]VO1B[5:0]VideoOutput0VO0HSYNCVO0VSYNCVO0CLKVO0ENVO0R[5:0]VO0G[5:0]VO0B[5:0]SystemController XT1XT2RESETHost-I/FHLBD[7:0]HADD[15:0]LBus-I/FADBus-I/FHADBEN[1:0]HADA[20:0]HLBWRHLBRDHLBCSHLBDRQHINTHADWAITHADWRHADRDHADCSExternal Memory I/FMD[31:0]MA[24:0]MCS0MCS1MDCKEMDCLKMDBA[1:0]MDDQM[3:0]MDFBCLKMDA10PCMDRASMDWEMSOEMSWRMSBEN[3:0]MDCASCommon I/FSDRAM-I/FStaticmemoryI/FAPB masterAHB masterAHB masterAHB masterAHB slaveAHB slaveSlaveAPB slaveAHB masterAHB slaveAHB masterAPB slaveRavin-MFigure 1-1 Ravin-M block diagramChapter 1 Introduction12 Preliminary User's Manual S19203EE1V3UM00