https://devzone.nordicsemi.com/f/nordic-q-a/115026/nrf52805-swdio-pin-reconfigurationHello everyone, We are working on a low power design with a nrf52805. The low power feature did work well initially on the eval board. When the main supply drops away we power the IC with a backup battery and go into low power mode until main power isen-USTelligent Community 13Thu, 26 Sep 2024 16:53:05 GMThttps://devzone.nordicsemi.com/thread/504042?ContentTypeID=1Thu, 26 Sep 2024 16:53:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ab7c6564-3b0a-4cd4-a7bc-2ca8e3c13d22hmolesworth<p>If you share the connection of the ESD protection diodes we can help; there should be no increase in current drawn provided the connections are correct and any other output pins connected to external devices which are powered down are driven low or floated. SDWIO pin should not be connected to anything that draws current when powered down and any protection diode on SWDIO should be connected to local VDD sourced from the battery, not the main power supply. This might require careful layout.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/503951?ContentTypeID=1Thu, 26 Sep 2024 11:20:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d73ad9f5-f9ce-488c-80e4-da3f8872c950Kenneth[quote user=""]Is it anyways possible to configure the SWDIO pin into an off state before we enter the sleep mode?[/quote] <p>Sorry no. This pin only serve the purpose of SWD, so there is not configuration option for this pin.</p> <p>Kenneth</p><div style="clear:both;"></div>