* may be defined to a value between 0 and 2 to fix the state variable into one of the three general purpose IO registers inside the AVR\r
* reserved for application use. When defined, the corresponding GPIOR register should not be used within the user application except\r
* implicitly via the library APIs.\r
* may be defined to a value between 0 and 2 to fix the state variable into one of the three general purpose IO registers inside the AVR\r
* reserved for application use. When defined, the corresponding GPIOR register should not be used within the user application except\r
* implicitly via the library APIs.\r