ATMEL Xmega – General I/O

Controlling A Port

The Xmega has hardware registries that speeds up controlling ports by skipping the read-execute-write cycle. The following example shows ways of controlling a port pin.

[code lang=”c”]
PORTB.DIRSET = (1 << 3);
PORTB.OUTSET = (1 << 3);
PORTB.OUTTGL = (1 << 3);
[/code]