pub type SR2_W<'a, const O: u8> = BitWriterRaw<'a, u32, SUBSTATWA_SPEC, SR2_A, Bit1C, O>;
Field SR2 writer - Subregion 2 in region n (write ‘1’ to clear)
SR2
struct SR2_W<'a, const O: u8> { /* private fields */ }