The POWER peripheral provides an interface for the power and clock subsystem for task, event, and interrupt related settings.
The POWER peripheral requests resources from the power and clock subsystem. The power and clock subsystem makes sure that the power mode with the proper latency settings is selected when requested. This means that the Constant Latency mode is prioritized over Low-power mode. For an overview of power modes, see Sub-power modes.
The event POFWARN is a system level event that enables the device to react quickly if there is a power failure. The power-fail comparator must be configured and enabled to receive the event, see Power-fail comparator for more information.
Power control of the RAM blocks is controlled by the memory configuration peripheral (MEMCONF), see MEMCONF — Memory configuration.