Methods for executing a command to write data from a source location to a destination location in a memory device
First Claim
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1. A method for executing a command to write data from a source location to a destination location in a memory device, the method comprising:
- with a memory device comprising a memory and a logical-to-physical address map;
(a) receiving, from a host device, a command to write data from a source location to a destination location in a memory device, wherein the command specifies a logical address of the source location in the memory and a logical address of the destination location in the memory, and wherein the command further specifies what is to happen to the data at the source location after the command is executed;
(b) translating the logical addresses of the source and destination locations to physical addresses of the memory; and
(c) executing the command by changing the memory device'"'"'s logical-to-physical address map without reading the data from the source location and writing the data to the destination location;
wherein the memory device executes the command without a need of further involvement of the host device after the host device sends the command to the memory device.
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Abstract
The embodiments described herein provide methods for executing a command to write data from a source location to a destination location in a memory device. In one embodiment, a memory device receives, from a host device, a command to write data from a source location to a destination location in the memory device. The memory device executes the command by changing the memory device'"'"'s logical-to-physical address map without reading the data from the source location and writing the data to the destination location and without a need of further involvement of the host device after the host device sends the command to the memory device.
136 Citations
20 Claims
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1. A method for executing a command to write data from a source location to a destination location in a memory device, the method comprising:
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with a memory device comprising a memory and a logical-to-physical address map; (a) receiving, from a host device, a command to write data from a source location to a destination location in a memory device, wherein the command specifies a logical address of the source location in the memory and a logical address of the destination location in the memory, and wherein the command further specifies what is to happen to the data at the source location after the command is executed; (b) translating the logical addresses of the source and destination locations to physical addresses of the memory; and (c) executing the command by changing the memory device'"'"'s logical-to-physical address map without reading the data from the source location and writing the data to the destination location; wherein the memory device executes the command without a need of further involvement of the host device after the host device sends the command to the memory device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Current AssigneeWestern Digital Israel Limited (Western Digital Corporation)
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Original AssigneeSanDisk IL Ltd. (Western Digital Corporation)
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InventorsStern, Ori Moshe, Selinger, Robert David, Goldschmidt, Sandra Almog
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Primary Examiner(s)Rutz, Jared
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Assistant Examiner(s)Bansal, Gurtej
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Application NumberUS12/544,529Publication NumberTime in Patent Office1,188 DaysField of Search711/165, 711/202, 711/203US Class Current711/165CPC Class CodesG06F 11/1008 in individual solid state d...G06F 11/1076 Parity data used in redunda...G06F 12/0646 Configuration or reconfigur...G06F 12/10 Address translationG06F 2212/1016 Performance improvementY02D 10/00 Energy efficient computing,...
