pub type R = R<Extiss3Spec>;
Register EXTISS3 reader
EXTISS3
struct R { /* private fields */ }
Bits 0:3 - EXTI 12 sources selection
Bits 4:7 - EXTI 13 sources selection
Bits 8:11 - EXTI 14 sources selection
Bits 12:15 - EXTI 15 sources selection