Memory system, data processing system, and operating method of memory system
AssigneeSK hynix Inc.
InventorHui Won LEE
Life of this patent
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Abstract
A memory system includes a nonvolatile memory device including a plurality of memory blocks, and a controller that generates a first mapping table for mapping information of logical addresses between a host device and physical addresses of the nonvolatile memory device and controls the first mapping table to be stored in the memory blocks. The controller may include a host interface unit that receives a second logical address to be written in a second mapping table from the host device and a second memory that stores the second mapping table.
Claims20
A memory system comprising:
- a nonvolatile memory device including a plurality of memory blocks;
- and
- a controller configured to generate a first mapping table for mapping information between logical addresses of a host device and physical addresses of the nonvolatile memory device and to control the first mapping table to be stored in the memory blocks,
- wherein the controller comprises:
- a host interface configured to receive from the host device a specific logical address to be written in a second mapping table;
- and
- a specific memory configured to store the second mapping table.
A data processing system comprising:
- a nonvolatile memory device including a plurality of memory blocks;
- a host device configured to generate a write request including a logical address corresponding to write data to be stored in the nonvolatile memory device;
- and
- a controller configured to receive the write request from the host device, to generate a first mapping table including mapping information between the logical address and a physical address of the nonvolatile memory device, and to control the first mapping table to be stored in the memory blocks, wherein
- the write request includes information regarding whether the logical address is a specific logical address, and
- the controller includes a specific memory in which a second mapping table including mapping information of the specific logical address is stored when the logical address is the specific logical address.
An operating method of a memory system including a controller that generates a first mapping table for mapping information between logical addresses of a host device and physical addresses of a nonvolatile memory device, the nonvolatile memory device including a plurality of memory blocks, the operating method comprising:
- receiving, from the host device, a specific logical address to be written in a second mapping table;
- writing mapping information of the specific logical address in the second mapping table;
- and
- storing the second mapping table in a specific memory,
- wherein the second mapping table is fixed to the specific memory.
Dependencies are inferred from the claim text.