5.1 General Purpose I/O Lines

General purpose I/O (GPIO) lines are managed by PIO Controllers. All I/Os have several input or output modes, such as pull-up or pull-down, input Schmitt Triggers, multidrive (open-drain), glitch filters, debouncing or input change interrupt. Programming of these modes is performed independently for each I/O line through the PIO controller user interface. For more details, refer to the section Parallel Input/Output Controller (PIO).