pub struct R(_);
Register CTRL reader
CTRL
Bit 0 - Enable the TIMERn interrupt.
Bits 1:2 - Selects timer mode.
Reads raw bits from register.
TypeId
self
Returns the argument unchanged.
Calls U::from(self).
U::from(self)
That is, this conversion is whatever the implementation of From<T> for U chooses to do.
From<T> for U