//! [`Monotonic`](super::Monotonic) implementations for the SiLabs EFR32/EFM32
//! series.
//!
//! * [rtcc]: RTCC peripheral (32-bit).
//! * [letimer]: LETimer (24-bit), low-frequency clock that runs in EM2+ deep sleep.
//! * [timer]: TIMER0 (32-bit), high-frequency clock prescaled to a chosen tick rate.
const NVIC_PRIO_BITS: u8 = 4;