Hardware interview practice
Bound the promise of a two-flop synchronizer
A slowly changing one-bit status crosses into an unrelated destination clock domain. Which statement accurately describes a two-flop synchronizer?
Choose one
Answer choices
- A. It guarantees zero probability of metastability.
- B. It reduces the chance that metastability reaches destination logic for a single-bit level.
- C. It is appropriate for an arbitrary changing data bus.
- D. It preserves every source pulse regardless of width.