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VLSI Design · Module 6 of 10

Verification and testbenches

Proving the design works before making the chip.

📖 Key ideas

  1. A testbench drives inputs into the design and checks the outputs.
  2. Simulation shows waveforms over time; engineers debug with them.
  3. SystemVerilog and UVM are the industry standards for verification.
  4. Coverage measures how much of the design and its features were tested.
  5. Assertions check rules automatically during simulation.
💡 Real-life example: Like an exam for the chip: many question papers (tests), each answer checked, and a report of which chapters were covered.
TestbenchCode that tests a design
WaveformSignals plotted over time
UVMUniversal Verification Methodology
CoverageHow much has been tested