Hardware interview practice
Build Traceable Verification Items from a Specification
A DMA specification defines normal transfers, alignment limits, resets, backpressure, error responses, interrupt timing, and a throughput target. Which plan best supports measurable signoff?
Choose one
Answer choices
- A. Write one long random test with no feature labels; if it runs overnight without a fatal message, mark every requirement verified.
- B. Copy section headings into a checklist but omit expected results so each engineer can decide informally whether a waveform looks correct.
- C. Give each requirement an identifier and link it to directed and constrained-random tests, assertions, checkers, functional coverpoints/crosses, and expected results; include boundaries, illegal behavior, reset and concurrency, performance, and maintain reverse links from failures and coverage holes back to the requirement.
- D. Use statement and branch coverage as the only signoff measure because reaching every RTL line proves every specified behavior and error response.