https://devzone.nordicsemi.com/f/nordic-q-a/85728/brownout-reset-not-present-in-nrf5340-reset--resetreas-registerHi there, We are not able to find the reset due to brownout within the RESET-&gt;RESETREAS register? Is this the case? There are explanations of the brownout detection in the product spec, so surely this should be somewhere. We are not able to find iten-USTelligent Community 13Mon, 14 Mar 2022 14:42:36 GMThttps://devzone.nordicsemi.com/thread/357995?ContentTypeID=1Mon, 14 Mar 2022 14:42:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4ca439aa-e6d1-484f-9ea3-3e08602fa024Frikkie Badenhorst<p>Thanks for your response Hakon, I definitely think that the manual can be written more clearly though.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/357909?ContentTypeID=1Mon, 14 Mar 2022 11:04:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3683ff0-67d8-4511-9590-87e2590c74bcH&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>A brownout reset and a power-on reset both will clear the RESETREAS register:</p> <p><a href="https://infocenter.nordicsemi.com/topic/ps_nrf5340/chapters/reset/doc/reset.html?cp=3_0_0_3_9_8#reset_behavior">https://infocenter.nordicsemi.com/topic/ps_nrf5340/chapters/reset/doc/reset.html?cp=3_0_0_3_9_8#reset_behavior</a></p> <p>&nbsp;</p> <p>This means that you can detect if the device has experienced POR/BOR by seeing if this register is cleared (ie.&nbsp;has its reset&nbsp;value)</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>