pub type XtmodeW<'a, REG> = FieldWriterSafe<'a, REG, 2, Xtmode>;
Field XTMODE writer - Trigger Operating Mode
XTMODE
struct XtmodeW<'a, REG> { /* private fields */ }
No external trigger
Trigger event upon a falling edge
Trigger event upon a rising edge
Trigger event upon any edge