pub trait PadSet: Sealed {
    type Sercom: Sercom;
    type IoSet: IoSet;
    type Rx: OptionalPad;
    type Tx: OptionalPad;
    type Rts: OptionalPad;
    type Cts: OptionalPad;
}Expand description
Type-level function to recover the OptionalPad types from a generic set
of Pads
This trait is used as an interface between the Pads type and other
types in this module. It acts as a type-level function, returning the
corresponding Sercom, and OptionalPad types. It serves to
cut down on the total number of type parameters needed in the Config
struct. The Config struct doesn’t need access to the Pads directly.
Rather, it only needs to apply the SomePad trait bound when a Pin is
required. The PadSet trait allows each Config struct to store an
instance of Pads without itself being generic over all six type
parameters of the Pads type.