Chapter 4. CPU Operation154 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD4.7 Logic/Configuration Source and CPU Operating Mode atPower-UpFlash and user memory can contain different values for the Logic/Configuration Power-up Sourceparameter. The following tables summarize how these settings determine the logic/configuration sourceafter a power cycle. CPU mode is affected by the Power-up Mode, the RUN/STOP Switch and Stop-ModeI/O Scanning parameters, the physical RUN/STOP Mode Switch position, and the Power Down Mode asshown in sections 4.7.1 and 4.7.2.Before Power Cycle After Power CycleLogic/ConfigurationPower-up Sourcein FlashLogic/ConfigurationPower-up Source in RAMOrigin ofLogic/ConfigurationCPU ModeAlways Flash Memory not preserved(i.e. no battery/Energy Pack,or memory corrupted)Flash See CPU Mode when Memory NotPreserved/Power-up Source isFlash.Always Flash No configuration in RAM,memorypreservedFlash See CPU Mode when MemoryPreserved.Always Flash Always Flash FlashAlways Flash Conditional Flash FlashAlways Flash Always RAM FlashConditional Flash Memory not preserved(i.e. no battery/Energy Packor memory corrupted)Flash See CPU Mode when Memory NotPreserved/Power-up Source isFlash.Conditional Flash No configuration in RAM,memorypreservedUses defaultlogic/configurationStop DisabledConditional Flash Always Flash RAM See CPU Mode when MemoryPreserved.Conditional Flash Conditional Flash RAMConditional Flash Always RAM RAMAlways RAM Memory not preserved(i.e. no battery/Energy Pack,or memory corrupted)Uses defaultlogic/configurationStop DisabledAlways RAM No configuration in RAM,memorypreservedUses defaultlogic/configurationStop DisabledAlways RAM Always Flash Flash See CPU Mode when MemoryPreserved.Always RAM Conditional Flash RAMAlways RAM Always RAM RAMNo Configuration inFlashMemory not preserved(i.e. no battery/Energy Pack,or memory corrupted)Uses defaultlogic/configurationStop DisabledNo Configuration inFlashNo configuration in RAM,memory preservedUses defaultlogic/configurationStop DisabledNo Configuration inFlashAlways Flash RAM See CPU Mode when MemoryPreserved.No Configuration inFlashConditional Flash RAMNo Configuration inFlashAlways RAM RAM
