This port includes the following features:
• Separate Interrupt Stack (ISTACK), task stacks need not to save space for interrupt handlers.
• Interrupt nesting model that allows for interrupts running without RTOS interaction and a set of priority levels of RTOS handled interrupt service routines that also may nest.
• Delayed task switch until last interrupt nesting level is about to return.
• Simple compile time registration of custom interrupt service routines.
• Support for UART 0 to 7 on R32C/111 chips.