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Non-volatile memory operations

  • US 9,697,358 B2
  • Filed: 06/13/2013
  • Issued: 07/04/2017
  • Est. Priority Date: 06/13/2013
  • Status: Active Grant
First Claim
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1. A non-volatile memory chip, comprising:

  • an interface module;

    a controller that is operably coupled to the interface module;

    a key storage module that is operably coupled to the controller, the key storage module being configured to store a key;

    a non-volatile storage module that is operably coupled to the controller and configured to store data, the non-volatile storage module having a first partition and a second partition, wherein;

    the first partition is designated as a read-only storage area for the data,the second partition is designated as a write-only storage area for new data received through the interface module, andthe first partition is re-designated as the write-only storage area for other new data and the second partition is re-designated as the read-only storage area for the new data in response to the new data being written to the second partition with a signature and the controller verifying the signature using the key stored in the key storage module; and

    a policy module that is operably coupled to the controller and configured to;

    store version information related to the new data in the second partition, andreceive and store policy information using a bitmask, wherein the bitmask is used as a permissions mask and the bitmask is used to assign unique identifier information to uniquely identify the non-volatile memory chip.

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