nRf52 unused pins

[Markus Mueller]

What are the default settings for unsed Pins?

I found this for the nRF51 devzone.nordicsemi.com/.../

Is it the same for nRF52?

[Ole Bauck]

You can see the reset value here. It is the same as on nRF51: Set as input, with an internal switch (NRF_GPIO->PIN_CNF[], bit 1) set to disconnect. So the pin is floating.