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Intel PXA27X Intel PXA27x Processor Family Power Requirements, Application Note, Sysen =, P Wr En

Models: PXA27X

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Power

Intel® PXA27x Processor Family Power Requirements

Note: 1) nRESET_OUT assertion is software programmable during processor resets. Refer to the Intel® PXA27x Processor Family Developer’s Manual.

Figure 4. Intel® PXA27x Processor Power Manager Sleep Reset State Diagram

Enable	pll_ok = 1		Normal	Initial
PLL	(Software initiated		Run	Power
			Mode	Up
	deep sleep) OR
				nBATT_FAULT = 0
	nVDD_FAULT = 0

clk_32k_ok = 1

	Deep				nBATT_FAULT = 1		Deep
	Deep				nBATT_FAULT = 0		Deep
	Sleep				nBATT_FAULT = 0		Sleep
					wakeup = 1 &		Batt fault
					wakeup = 1 &
					nBATT_FAULT = 1
		wakeup = 1 &						wakeup = 1 &
		nBATT_FAULT = 1						nBATT_FAULT = 0
					wakeup = 1 &
					wakeup = 1 &
					nBATT_FAULT = 0
	Wakeup						Wakeup
SYS_EN = 1	while				nBATT_FAULT = 1		while
SYS_EN = 1	Batt Fault				nBATT_FAULT = 1		Batt Fault
	de-asserted						asserted

Count		nBATT_FAULT = 0
Down
SYS_DEL

(count_done = 1 & nBATT_FAULT = 1) OR

(all_vcc_hi = 1 & PSSD = 1 & nBATT_FAULT = 1)

PWR_EN

= 1

Assert

nBATT_FAULT = 0

pwr_

All external IO pads use

enable

VCC_IO or corresponding power

supply. Power manager continu

es

to use VCC_BATT

Count		nBATT_FAULT = 0
Down		nBATT_FAULT = 0
PWR_DEL		(nVDD_FAULT = 0) & (count_done = 1)
		(nVDD_FAULT = 0) & (count_done = 1)
(nBATT_FAULT = 1 & nVDD_FAULT = 1) &
(count_done = 1 OR all_vcc_low = 1 & PSSD = 1)			= power manager powered by VCC_CORE
			= power manager powered by VCC_CORE
			= power manager powered by VCC_BATT

26	Application Note

Image 26

Intel PXA27X manual Intel PXA27x Processor Family Power Requirements, Application Note, Sysen =, P Wr En, Down

Contents

Intel PXA27x Processor Family Power Requirements Application NoteApplication Note Contents ContentsIntel PXA27x Processor Family Power Requirements IntroductionFigures Intel PXA27x Processor Family Power RequirementsContents TablesIntel PXA27x Processor Family Power Requirements 1.0 Introduction1.1 Naming Conventions Application NoteIntel PXA27x Processor Family Power Requirements 2.0 Intel PXA27x Processor Power Supply DomainsTable 1. External Power Supply Descriptions Application NoteApplication Note Figure 1. Intel PXA27x Processor Internal and External Power DomainsIntel PXA27x Processor Family Power Requirements Intel PXA27x Processor Family Power Requirements 2.1 Power Domains and System Voltage/Current Requirements2.1.1 Intel PXA27x Processor Power Supplies Application NoteApplication Note Table 2. Intel PXA27x Processor Voltage Domains Sheet 1 ofIntel PXA27x Processor Family Power Requirements VoltageIntel PXA27x Processor Family Power Requirements 2.1.2 Power Supply Configuration in a Minimal SystemTable 2. Intel PXA27x Processor Voltage Domains Sheet 2 of Application Note2.1.3.1 Intel PXA27x Processor VCCCORE Supply Current 2.1.3 Modeling Intel PXA27x processor power consumptionTable 3. Regulators Required to Power the Intel PXA27x Processor Intel PXA27x Processor Family Power RequirementsIntel PXA27x Processor Family Power Requirements 2.1.3.2 Supply Current For Each Power DomainTable 4. Intel PXA27x Processor VCCCORE Supply Current Application NoteIntel PXA27x Processor Family Power Requirements 2.1.4 Default Reset ValuesTable 5. Intel PXA27x Processor Supply Current For Each Power Domain Application Note2.2 Batteries 2.2.1 Main Battery2.2.2 Backup Battery Intel PXA27x Processor Family Power RequirementsIntel PXA27x Processor Family Power Requirements 2.2.3 Battery Chargers and Main PowerTable 6. Possible Backup Battery Configurations Application NoteApplication Note Figure 2. Typical Battery and External Regulator ConfigurationIntel PXA27x Processor Family Power Requirements PXA27x ProcessorIntel PXA27x Processor Family Power Requirements 3.0 Intel PXA27x Processor Low Power Operating ModesTable 7. Intel PXA27x Processor Operating Modes Application NoteIntel PXA27x Processor Family Power Requirements 4.0 Power Controller Interface SignalsFigure 3. Overview of Power Management Operating Modes Application Note4.3 Power Manager I2C Clock PWRSCL / GPIO3 4.1 Power Enable PWREN4.2 System Power Enable SYSEN / GPIO2 Table 8. Power Controller Interface Signals4.6.2 User-Initiated Hard Reset Input 4.4 Power Manager I2C Data PWRSDA / GPIO44.6 On, Off, and RESET 4.5 System-Level Considerations for I2C4.7 Universal Subscriber Identity Module USIM 4.8 Power Manager Capacitor Signals4.6.3 nRESET Output from PMIC to the Intel PXA27x Processor Intel PXA27x Processor Family Power Requirements5.1.1 Cold-Start Power-On and Hardware Reset 5.0 Power Mode Sequencing5.1 Power-On Intel PXA27x Processor Family Power RequirementsApplication Note 5.1.2 Initial Power Up and Deep Sleep Exit SequenceIntel PXA27x Processor Family Power Requirements Application Note 5.1.3 Hardware Reset BehaviorIntel PXA27x Processor Family Power Requirements Application Note Intel PXA27x Processor Family Power Requirements1. The PMIC asserts nRESET = power manager powered by VCCCORE Intel PXA27x Processor Family Power RequirementsPower = power manager powered by VCCBATTIntel PXA27x Processor Family Power Requirements 5.2 Sleep and Deep Sleep5.2.1 Sleep Entry and Exit Application NoteApplication Note 5.2.2 Deep Sleep Entry and ExitIntel PXA27x Processor Family Power Requirements Intel PXA27x Processor Family Power Requirements 6.0 Dynamic Voltage Management DVM6.1 VCCCORE Regulator and Dynamic Voltage Management Application NoteApplication Note 6.2 Intel PXA27x Processor Voltage ManagerIntel PXA27x Processor Family Power Requirements 7.1 nVDDFAULT 7.0 Fault Management6.3 Power Manager I2C Interface 6.4 DVM Sequencing8.1 General PMIC Characteristics 8.0 Power Management Integrated Circuit Requirements7.2 nBATTFAULT Intel PXA27x Processor Family Power RequirementsIntel PXA27x Processor Family Power Requirements 8.2 Features of a PMICTable 9. General PMIC Characteristics Application Note8.3.2 DVM Control Register 8.3 Programmable Voltage Control8.3.1 DVM Control Register Intel PXA27x Processor Family Power Requirements8.3.3 DVM Control and Status Register 8.3.4 Other Aspects of an Integrated Power Controller9.0 Summary Intel PXA27x Processor Family Power RequirementsIntel PXA27x Processor Family Power Requirements Application Note