pub type SR1_W<'a, const O: u8> = BitWriterRaw<'a, u32, SUBSTATWA_SPEC, SR1_A, Bit1C, O>;
Field SR1 writer - Subregion 1 in region n (write ‘1’ to clear)
SR1
struct SR1_W<'a, const O: u8> { /* private fields */ }