pub type ETPS_W<'a, const O: u8> = FieldWriterSafe<'a, u32, SMCR_SPEC, u8, ETPS_A, 2, O>;
Field ETPS writer - External trigger prescaler
ETPS
Prescaler OFF
ETRP frequency divided by 2
ETRP frequency divided by 4
ETRP frequency divided by 8