Memory system, memory controller and method for operating memory controller
AssigneeSK hynix Inc.
InventorJin Pyo Kim
Life of this patent
Estimating the term…
Abstract
A memory system, a memory controller and an operating method are disclosed. By dividing a read count table including read count values respectively for a plurality of memory blocks into one or more read count table segments each including one or more read count values of a resolution, and managing one or more flags respectively corresponding to the read count table segments, and set the flag corresponding to the read count table segment in which at least one read count value is changed among the read count table segments, it is possible to minimize additional operational costs required to recover the read count table upon occurrence of an SPO.
Claims17
A memory system comprising:
- a memory device including a plurality of memory blocks;
- and
- a memory controller configured to:
- divide a read count table including read count values respectively for the plurality of memory blocks into one or more read count table segments each including one or more read count values of a resolution,
- manage one or more flags respectively corresponding to the read count table segments, and
- set the flag corresponding to the read count table segment, in which at least one read count value is changed, among the read count table segments.
A memory controller comprising:
- a memory interface configured to communicate with a memory device including a plurality of memory blocks;
- and
- a control circuit configured to:
- divide a read count table including read count values respectively for the plurality of memory blocks into one or more read count table segments each including one or more read count values of a resolution,
- manage one or more flags respectively corresponding to the read count table segments, and
- set the flag corresponding to the read count table segment, in which at least one read count value is changed, among the read count table segments.
A method for operating a memory controller which controls a memory device including a plurality of memory blocks, the method comprising:
- dividing a read count table including read count values respectively for the plurality of memory blocks into one or more read count table segments each including one or more read count values of a resolution;
- managing one or more flags respectively corresponding to the read count table segments;
- and
- setting the flag corresponding to the read count table segment, in which at least one read count value is changed, among the read count table segments.
Dependencies are inferred from the claim text.