pub type WayW<'a, REG> = FieldWriter<'a, REG, 4, Wayselect>;
Field WAY writer - Invalidate Way
WAY
struct WayW<'a, REG> { /* private fields */ }
Way 0 is selection for index invalidation
Way 1 is selection for index invalidation
Way 2 is selection for index invalidation
Way 3 is selection for index invalidation