pub type TPAL_W<'a> = BitWriter<'a, u32, CR_SPEC, TPAL_A, 1>;
Field TPAL writer - Tamper pin active level
TPAL
A high level on the TAMPER pin resets all data backup registers (if TPE bit is set)
A low level on the TAMPER pin resets all data backup registers (if TPE bit is set)