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Memory module, computing system having the same, and method for testing tag error thereof

  • US 10,019,367 B2
  • Filed: 04/05/2017
  • Issued: 07/10/2018
  • Est. Priority Date: 12/14/2015
  • Status: Active Grant
First Claim
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1. A method of a computing system that comprises at least one nonvolatile memory, a memory module performing a cache function of the nonvolatile memory and comprising cache dynamic random access memories (DRAMs), and a processor controlling the nonvolatile memory and the memory module, the method comprising:

  • outputting, at the processor, a command and an address to the memory module;

    receiving match/unmatch bits indicating results of comparing a tag corresponding to the address with tags stored in the cache DRAMs of the memory module, from the memory module;

    determining, at the processor, a cache hit/miss from the match/unmatch bits by using majority voting; and

    outputting, at the processor, the determined cache hit/miss to the memory module.

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