Memory system for utilizing a memory included in an external device
AssigneeSK hynix Inc.
InventorsHye-Mi Kang, Eu-Joon Byun, Byung-Jun Kim, Seok-Jun Lee
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Abstract
A memory system includes a memory device and a controller. The memory device stores a piece of data in a location which is distinguished by a physical address. The controller generates map data, each piece of map data associating a logical address, inputted along with a request from an external device, with the physical address, selects a piece of map data among the map data based on a status regarding the piece of map data, and transfers selected map data to the external device.
Claims20
A memory system, comprising:
- a memory device configured to store a piece of data in a location which is distinguished by a physical address;
- and
- a controller configured to generate map data, each piece of map data associating a logical address, inputted along with a request from an external device, with the physical address, to select a piece of map data among the map data based on a status regarding the piece of map data, and to transfer selected map data to the external device,
- wherein the status regarding the piece of map data includes a transmission priority determined based on a miss count indicating how many times at least one read request with no physical address and how many times an invalid physical address is inputted.
A controller operating between plural devices, each device including an independent address scheme to indicate a location in which a piece of data is stored, wherein the controller is configured to perform an operation in response to a request inputted from one of the plural devices, to generate map data, each piece of map data associating a logical address with a physical address used in the plural devices, to select a piece of map data among the map data based on a status regarding the piece of map data, and to transfer selected map data to the external device, wherein the status regarding the piece of map data includes a transmission priority determined based on a miss count indicating how many times at least one read request with no physical address and how many times an invalid physical address is inputted.
A method for operating a memory system including a memory device configured to store a piece of data in a location which is distinguished by a physical address, comprising:
- generating map data, each piece of map data associating a logical address, inputted along with a request from an external device, with the physical address;
- selecting a piece of map data among the map data based on a status regarding the piece of map data;
- and
- transferring selected map data to the external device,
- wherein the status regarding the piece of map data includes a transmission priority determined based on a miss count indicating how many times at least one read request with no physical address and how many times an invalid physical address is inputted.
Dependencies are inferred from the claim text.