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PXA27X manual Intel PXA27x Processor Family Power Requirements, Application Note
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PXA27X
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General PMIC Characteristics
Power Supply Configuration in a Minimal System
Default Reset Values
Fault Management
Power Controller Interface Signals
Backup Battery
Battery Chargers and Main Power
Intel PXA27x Processor Family Power Requirements
Features of a PMIC
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Intel® PXA27x Processor Family Power Requirements
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Application Note
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Contents
Intel PXA27x Processor Family Power Requirements
Application Note
Application Note
Contents
Intel PXA27x Processor Family Power Requirements
Contents
Introduction
Intel PXA27x Processor Family Power Requirements
Contents
Figures
Tables
1.0 Introduction
1.1 Naming Conventions
Intel PXA27x Processor Family Power Requirements
Application Note
2.0 Intel PXA27x Processor Power Supply Domains
Table 1. External Power Supply Descriptions
Intel PXA27x Processor Family Power Requirements
Application Note
Figure 1. Intel PXA27x Processor Internal and External Power Domains
Intel PXA27x Processor Family Power Requirements
Application Note
2.1 Power Domains and System Voltage/Current Requirements
2.1.1 Intel PXA27x Processor Power Supplies
Intel PXA27x Processor Family Power Requirements
Application Note
Table 2. Intel PXA27x Processor Voltage Domains Sheet 1 of
Intel PXA27x Processor Family Power Requirements
Application Note
Voltage
2.1.2 Power Supply Configuration in a Minimal System
Table 2. Intel PXA27x Processor Voltage Domains Sheet 2 of
Intel PXA27x Processor Family Power Requirements
Application Note
2.1.3 Modeling Intel PXA27x processor power consumption
Table 3. Regulators Required to Power the Intel PXA27x Processor
2.1.3.1 Intel PXA27x Processor VCCCORE Supply Current
Intel PXA27x Processor Family Power Requirements
2.1.3.2 Supply Current For Each Power Domain
Table 4. Intel PXA27x Processor VCCCORE Supply Current
Intel PXA27x Processor Family Power Requirements
Application Note
2.1.4 Default Reset Values
Table 5. Intel PXA27x Processor Supply Current For Each Power Domain
Intel PXA27x Processor Family Power Requirements
Application Note
2.2.1 Main Battery
2.2.2 Backup Battery
2.2 Batteries
Intel PXA27x Processor Family Power Requirements
2.2.3 Battery Chargers and Main Power
Table 6. Possible Backup Battery Configurations
Intel PXA27x Processor Family Power Requirements
Application Note
Figure 2. Typical Battery and External Regulator Configuration
Intel PXA27x Processor Family Power Requirements
Application Note
PXA27x Processor
3.0 Intel PXA27x Processor Low Power Operating Modes
Table 7. Intel PXA27x Processor Operating Modes
Intel PXA27x Processor Family Power Requirements
Application Note
4.0 Power Controller Interface Signals
Figure 3. Overview of Power Management Operating Modes
Intel PXA27x Processor Family Power Requirements
Application Note
4.1 Power Enable PWREN
4.2 System Power Enable SYSEN / GPIO2
4.3 Power Manager I2C Clock PWRSCL / GPIO3
Table 8. Power Controller Interface Signals
4.4 Power Manager I2C Data PWRSDA / GPIO4
4.6 On, Off, and RESET
4.6.2 User-Initiated Hard Reset Input
4.5 System-Level Considerations for I2C
4.8 Power Manager Capacitor Signals
4.6.3 nRESET Output from PMIC to the Intel PXA27x Processor
4.7 Universal Subscriber Identity Module USIM
Intel PXA27x Processor Family Power Requirements
5.0 Power Mode Sequencing
5.1 Power-On
5.1.1 Cold-Start Power-On and Hardware Reset
Intel PXA27x Processor Family Power Requirements
5.1.2 Initial Power Up and Deep Sleep Exit Sequence
Intel PXA27x Processor Family Power Requirements
Application Note
5.1.3 Hardware Reset Behavior
Intel PXA27x Processor Family Power Requirements
Application Note
Intel PXA27x Processor Family Power Requirements
1. The PMIC asserts nRESET
Application Note
Intel PXA27x Processor Family Power Requirements
Power
= power manager powered by VCCCORE
= power manager powered by VCCBATT
5.2 Sleep and Deep Sleep
5.2.1 Sleep Entry and Exit
Intel PXA27x Processor Family Power Requirements
Application Note
5.2.2 Deep Sleep Entry and Exit
Intel PXA27x Processor Family Power Requirements
Application Note
6.0 Dynamic Voltage Management DVM
6.1 VCCCORE Regulator and Dynamic Voltage Management
Intel PXA27x Processor Family Power Requirements
Application Note
6.2 Intel PXA27x Processor Voltage Manager
Intel PXA27x Processor Family Power Requirements
Application Note
7.0 Fault Management
6.3 Power Manager I2C Interface
7.1 nVDDFAULT
6.4 DVM Sequencing
8.0 Power Management Integrated Circuit Requirements
7.2 nBATTFAULT
8.1 General PMIC Characteristics
Intel PXA27x Processor Family Power Requirements
8.2 Features of a PMIC
Table 9. General PMIC Characteristics
Intel PXA27x Processor Family Power Requirements
Application Note
8.3 Programmable Voltage Control
8.3.1 DVM Control Register
8.3.2 DVM Control Register
Intel PXA27x Processor Family Power Requirements
8.3.4 Other Aspects of an Integrated Power Controller
9.0 Summary
8.3.3 DVM Control and Status Register
Intel PXA27x Processor Family Power Requirements
Intel PXA27x Processor Family Power Requirements
Application Note