The device employs a non-volatile memory to store the default temperature resolution (9, 10, 11 or 12 bits) to be applied after power-up. This is useful if you use temperature conversions. Reading this node gives you the value stored in the non-volatile memory. Writing sets a new power-on resolution value. As a side effect, reading this node resets the temperature resolution used by temperature conversions to its power-on value. It also affects the resolution value used by to scale the latest conversion value, so make sure to re-sample the temperature before accessing after writing or reading the value.