could nRF53 wake up from system off mode with a timer?https://devzone.nordicsemi.com/f/nordic-q-a/80420/could-nrf53-wake-up-from-system-off-mode-with-a-timerHello I&#39;m using nRF53 DK on zephyr v1.6.1. I&#39;m now testing the power-saving mode. I tested the system-off example &quot;v1.6.1/zephyr/samples/boards/nrf/system_off&quot; and it works like expected with different power modes. In the system-off sample , the wakeen-USTelligent Community 13Thu, 07 Oct 2021 11:47:36 GMTRE: could nRF53 wake up from system off mode with a timer?https://devzone.nordicsemi.com/thread/333026?ContentTypeID=1Thu, 07 Oct 2021 11:47:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:760688ad-2279-4adb-a44b-5d2201a0a147Vidar Berg<p>Hi Youssef,</p> <p>Unfortunately, the chip is powered down in System OFF mode. This means that resources such as clocks and timers will not be available. Please reffer to the <span><a title="System OFF mode" href="https://infocenter.nordicsemi.com/topic/ps_nrf5340/chapters/pmu/doc/pmu.html?cp=3_0_0_3_1#unique_1492065360">System OFF mode</a></span> section of the PS for more details.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>