Intel PXA27X manual Intel PXA27x Processor Family Power Requirements

Page 36

Intel® PXA27x Processor Family Power Requirements

36	Application Note

Image 36

Contents Intel PXA27x Processor Family Power Requirements Application NoteApplication Note Contents Figures Introduction Naming ConventionsIntel PXA27x Processor Power Supply Domains External Power Supply DescriptionsPower Domain Enable1 Units Specified Levels Tolerance Volts PLL PxtalSram DMAPower Domains and System Voltage/Current Requirements Intel PXA27x Processor Power SuppliesIntel PXA27x Processor Voltage Domains Sheet 1 Voltage DescriptionPower Supply Configuration in a Minimal System Intel PXA27x Processor Voltage Domains Sheet 2Modeling Intel PXA27x processor power consumption Regulators Required to Power the Intel PXA27x ProcessorIntel PXA27x Processor Vcccore Supply Current Regulator DescriptionSupply Current For Each Power Domain Frequency Dhrystones Power MPEG4 Decode Power StressIntel PXA27x Processor Vcccore Supply Current Default Reset Values Intel PXA27x Processor Supply Current For Each Power DomainName Functional Units Current mA @ Power VccbattMain Battery Backup BatteryBatteries Battery Chargers and Main Power Possible Backup Battery ConfigurationsBackup Battery Description Typical Battery and External Regulator Configuration Intel PXA27x Processor Low Power Operating Modes Intel PXA27x Processor Operating ModesPower Controller Interface Signals CPDIS=1CPDIS=0 Power Enable Pwren System Power Enable Sysen / GPIO2Power Manager I2C Clock Pwrscl / GPIO3 Power Controller Interface SignalsPower Manager I2C Data Pwrsda / GPIO4 On, Off, and ResetUser-Initiated Hard Reset Input System-Level Considerations for I2CPower Manager Capacitor Signals NRESET Output from Pmic to the Intel PXA27x ProcessorUniversal Subscriber Identity Module Usim Power Mode Sequencing Power-OnCold-Start Power-On and Hardware Reset Initial Power Up and Deep Sleep Exit Sequence Vcccore Vccpll VccsramHardware Reset Behavior Intel PXA27x Processor Family Power Requirements Sysdel PwrdelSleep and Deep Sleep Sleep Entry and ExitDeep Sleep Entry and Exit Dynamic Voltage Management DVM Vcccore Regulator and Dynamic Voltage ManagementIntel PXA27x Processor Voltage Manager Fault Management Power Manager I2C InterfaceNVDDFAULT DVM SequencingPower Management Integrated Circuit Requirements NBATTFAULTGeneral Pmic Characteristics Features of a Pmic General Pmic CharacteristicsCharacteristic Description Programmable Voltage Control DVM Control RegisterOther Aspects of an Integrated Power Controller SummaryDVM Control and Status Register Intel PXA27x Processor Family Power Requirements