I have just started with the EIC in the UC3C after using it previously in the UC3A and UC3B.
The previously used devices have a single interrupt group for these (External Interrupts 0..7) and the interrupt handler checked which one(s) it is.
The UC3C part has two interrupt groups for external interrupts 1..4 and 5..8. This means that there are two interrupt vectors and each then needs to identify which one(s) of its group is asserted.
Does anyone know how the external interrupt 0 is handled? It doesn't seem to belong to any group (???)