Configuration:

// Configure polarity based on external circuit requirements
if (external_pmic_type == STANDARD_PMIC) {
    config.polarity = LowPowerRequestPinPolarity::ACTIVE_LOW;
} else if (external_pmic_type == CUSTOM_SUPERVISORY) {
    config.polarity = LowPowerRequestPinPolarity::ACTIVE_HIGH;
}

警告

Polarity Mismatch Consequences:

Incorrect polarity may cause external circuits to misinterpret power state
Could lead to improper power management behavior
May result in increased power consumption or system instability
Always verify polarity compatibility during system integration

註

Hardware Considerations:

External pull-up/pull-down resistors may be required
Signal integrity requirements may favor one polarity over another
Consider electromagnetic compatibility (EMC) implications
Verify signal levels meet external circuit input specifications

Testing and Validation:

Verify signal polarity with oscilloscope during power transitions
Test external circuit response to both polarities if uncertain
Validate system power management behavior with configured polarity
Document polarity requirements for system integration

參閱: LowPowerRequestPinPolarity enumeration for available polarity options