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RTL Design Engineer Interview Questions

Practice the complete RTL Design Engineer collection

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  1. Q007RTL DesignBuild a synchronous FIFO and race-free BFMFIFO · BFMMedium
  2. Q079RTL DesignBuild a reloadable countdown timerCounter · PulseMedium
  3. Q204FSMsDetect overlapping 1011 sequencesSequence detector · Mealy FSMMediumP
  4. Q191RTL DesignPipeline a parameterized barrel rotatorBarrel rotator · PipeliningHard
  5. Q004Clock Domain CrossingChoose a safe clock-domain crossing strategyCDC · MetastabilityMedium
  6. Q009Reset DesignSynchronize reset release in each clock domainReset · Async assertEasy
  7. Q014RTL DesignRegister a glitch-free decoded enableDecode · Clock enableEasy
  8. Q020RTL DesignAbsorb ready/valid backpressure with a skid bufferSkid buffer · Ready/validHard
  9. Q200Reliable RTLDetect and recover an upset one-hot FSMOne-hot · SEUMedium
  10. Q162RTL DesignReverse a physical bus at the lane boundaryBit reversal · Packed vectorsEasy
  11. Q168RTL DesignCount active lanes in a predicate maskPopulation count · ReductionEasy
  12. Q090RTL DesignIncrement a four-digit BCD counterBCD · Ready/validMedium
  13. Q218RTL DesignSearch a synchronous calibration ROMBinary search · Synchronous ROMHardP
  14. Q006RTL DesignVote across redundant state monitorsMajority voter · Fault toleranceEasy
  15. Q025RTL DesignStably sort records in a local cache-line bufferStable sort · Single-port memoryMedium
  16. Q041RTL DesignControl a tiny exact-LRU associative cacheLRU · Associative lookupMedium
  17. Q085RTL DesignSchedule bank commands with accepted-slot cooldownScheduler · CooldownMedium
  18. Q141RTL DesignDecode Z wildcards without hiding XDesign · SystemVerilogEasy
  19. Q149RTL DesignDiagnose storage from an incomplete always_comb blockDesign · SystemVerilogEasy
  20. Q177RTL DesignImplement a parameterized binary-to-Gray converterDesign · SystemVerilogEasy
  21. Q102RTL DesignCode an asynchronously reset register with enableDesign · SystemVerilogEasy
  22. Q283Combinational RTLBuild a parameterized N-to-1 multiplexerDesign · SystemVerilogMediumP
  23. Q944RTL DesignCompare synchronous and asynchronous resetDesign · SystemVerilogEasyP
  24. Q611RTL DesignCombinational versus sequential logicDesign · Combinational RTLEasyP
  25. Q877FSMsWhy an FSM infers a latchDesign · DVEasyP
  26. Q432Sequential RTLSynchronous rising-edge detectorDesign · Edge detectorEasyP
  27. Q226RTL DesignImplement a synchronous FIFO with exact boundary behaviorDesign · DVMediumP
  28. Q807RTL DesignCount consecutive zeros with saturationDesign · RTLEasyP
  29. Q594RTL DesignConvert a synchronous level into a one-cycle rising pulseDesign · RTLEasyP
  30. Q749RTL DesignImplement a four-requester round-robin arbiterDesign · ArbitrationMediumP
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RTL Design Engineer interview preparation

Prepare for RTL design engineer interviews with curated questions on logic, FSMs, FIFOs, ready-valid flow control, arbitration, reset, datapaths, and timing.

Build from clean combinational and sequential intent into FSMs, datapaths, FIFOs, backpressure, arbitration, memory interfaces, reset behavior, and timing-aware RTL tradeoffs.