25.5.1 Power Management

The NVMCTRL will continue to operate in any sleep mode where the selected source clock is running. The NVMCTRL interrupts can be used to wake up the device from sleep modes.

The NVM block can be put into a low-power mode either automatically when the Power Manager enters standby mode, or when the SPRM command is issued. The NVMCTRL can wake-up when the Power Manager leaves sleep mode or on AHB access or when a command requires the NVM to be active. This is based on the Control A register (CTRLA) PRM bit setting. Read the CTRLA register description for more details.

NVM wake-up time can be traded with static power consumption depending on the PM STDBYCFG.FASTWKUP setting.