pub type TppW<'a, REG> = BitWriter<'a, REG, Tpp>;
Field TPP writer - Timer Pin Polarity
TPP
pub struct TppW<'a, REG> { /* private fields */ }
Pulse Counter input source is active-high, and the CNR will increment on the rising-edge.
Pulse Counter input source is active-low, and the CNR will increment on the falling-edge.