This bit field controls the output driver for each PORTx pin, without using a read-modify-write operation.

Writing a ‘0’ to bit n in this bit field has no effect.

Writing a ‘1’ to bit n in this bit field will set the corresponding bit in PORTx.DIR, which will configure pin n (Pxn) as an output pin and enable the output driver.

Reading this bit field will return the value of PORTx.DIR.