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      NVIDIA ASIC Design Intern interview

      NVIDIA Interview Question

      ASIC Design Intern Interview

      Compare the power usage of a regular versus a gray code counter.

      Interview Answers

      Anonymous

      Jul 4, 2014

      Gray code counters consume only half the power of an equivalent binary counter. Only one bit is toggling at a time.

      1

      Anonymous

      Oct 4, 2016

      Not true that grey code consumes 1/2 power. Look at the case of an 8-bit counter where it becomes all 1's so the next count it will roll over to 0's. That's 8 bitschanging. Grey code only allows 1 bit changing.

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