Multi-Supply

System Coordination:

// Coordinate multiple power supplies using active-low LPR
void coordinate_multi_supply_system() {
    // Configure active-low for compatibility with multiple PMICs
    LowPowerRequestConfig config = {
        .enable = true,
        .polarity = LowPowerRequestPinPolarity::LOW_TRUE_POLARITY,
        .override = LowPowerRequestOutputOverride::NOT_FORCED
    };
 
    configure_low_power_request(&config);
 
    // Power management sequence coordination:
    prepare_peripherals_for_low_power();
 
    // LPR goes low, multiple external circuits respond:
    enter_low_power_mode();  // LPR -> LOW
 
    // External power supplies can:
    // - Core voltage PMIC: Reduce CPU core voltage
    // - I/O voltage PMIC: Maintain or reduce I/O supply
    // - Peripheral power switches: Disable unused peripherals
    // - Clock generators: Reduce or disable high-frequency clocks
}