4.2.5 Unused I/O Pins
It is recommended that unused I/O pins not be allowed to float as inputs. They can be configured as inputs and pulled up. Alternatively, depending on the application, they can be pulled down as well.
It is recommended that unused I/O pins not be allowed to float as inputs. They can be configured as inputs and pulled up. Alternatively, depending on the application, they can be pulled down as well.