Patent attributes
A memory system includes a nonvolatile memory and a controller configured to control the nonvolatile memory based on an address conversion table. The controller is configured to generate first address mapping information indicating a first logical address range and a first physical address range, and then second address mapping information indicating a second logical address range and a second physical address range, determine whether the first and second logical address ranges are continuous and the first and second physical address ranges are continuous, upon determining non-continuity of the logical or physical address ranges, update the address conversion table based on the first address mapping information, and upon determining continuity of the logical and physical address ranges, generate integrated address mapping information using the first and second address mapping information and update the address conversion table based on the integrated address mapping information.