FR500 Debug support unit B unit SDRAM I/F Bus interface System bus I/F I unit Inst buffer IBack Integer1 GR Integer0 Pipeline cntl I0 I1 F/M0 F/M1 FM unit Media0 FR Float1 Media1 Float0 FBack S unit Inst unit Inst cache Inst cache cntl Data unit Data cache Data cache cntl Address translation ICE SDRAM Bus bridge