- * Macros for indicating the chosen hardware architecture to the library. These macros should be used when\r
- * defining the ARCH token to the chosen hardware via the -D switch in the project makefile.\r
+ * Architecture macros for selecting the desired target microcontroller architecture. One of these values should be\r
+ * defined as the value of \c ARCH in the user project makefile via the \c -D compiler switch to GCC, to select the\r
+ * target architecture.\r
+ *\r
+ * The selected architecture should remain consistent with the makefile \c ARCH value, which is used to select the\r
+ * underlying driver source files for each architecture.\r