- * make be defined to fix the state variable into one of the three general purpose IO registers inside the AVR reserved for application\r
- * use. When defined, the GPIOR0 register should not be used within the user application except 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