3.3. Power Management

• 3.3.1. Power Management Overview
• 3.3.2. DFS
• 3.3.3. CPUIdle
• 3.3.4. Runtime PM
• 3.3.5. Low Power Modes
  • 3.3.5.1. Overview
  • 3.3.5.2. Partial I/O
  • 3.3.5.3. I/O Only Plus DDR
  • 3.3.5.4. DeepSleep
  • 3.3.5.5. MCU Only
  • 3.3.5.6. Limitations
    • 3.3.5.6.1. Compatibility
• 3.3.6. Wakeup Sources
  • 3.3.6.1. Real-Time Clock (RTC)
  • 3.3.6.2. MCU/WKUP GPIO
  • 3.3.6.3. Main I/O Daisy Chain
    • 3.3.6.3.1. Main UART
    • 3.3.6.3.2. Main GPIO
  • 3.3.6.4. WKUP I/O Daisy Chain
    • 3.3.6.4.1. WKUP UART I/O Daisy Chain
  • 3.3.6.5. WKUP UART
  • 3.3.6.6. USB Wakeup methods
    • 3.3.6.6.1. Host Mode Wakeup Events
      • 3.3.6.6.1.1. Wakeup via a device connect event
      • 3.3.6.6.1.2. Wakeup via a device disconnect event
      • 3.3.6.6.1.3. Via Remote wakeup event
    • 3.3.6.6.2. Device Mode Wakeup Events
      • 3.3.6.6.2.1. Wakeup via connect event
  • 3.3.6.7. MCU IPC based Wakeup
  • 3.3.6.8. CAN I/O Daisy Chain
  • 3.3.6.9. RTC I/O
    • 3.3.6.9.1. RTC I/O Pins 0 and 1
    • 3.3.6.9.2. RTC I/O Pin 2
  • 3.3.6.10. Confirming the Wakeup event type
• 3.3.7. S/W Architecture of System Suspend
  • 3.3.7.1. Overview
  • 3.3.7.2. System diagram and components
    • 3.3.7.2.1. DeepSleep Entry
    • 3.3.7.2.2. DeepSleep Exit
  • 3.3.7.3. LPM constraints framework
    • 3.3.7.3.1. Types of Constraints
    • 3.3.7.3.2. How to set constraints
      • 3.3.7.3.2.1. Device Constraint
      • 3.3.7.3.2.2. Resume Latency Constraint
    • 3.3.7.3.3. Constraints and mode selection explained
  • 3.3.7.4. Learning Resources
• 3.3.8. Debug Information
  • 3.3.8.1. Low Power Modes
    • 3.3.8.1.1. Decoding set constraint debug messages
• 3.3.9. Upstream Status
  • 3.3.9.1. Pending Upstream Series
  • 3.3.9.2. Workarounds