Memory system
First Claim
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1. A memory system comprising:
- a nonvolatile semiconductor memory including an accessible area being configured to be accessed by an external command, and an inaccessible area being configured not to be accessed by the external command, the external command instructing an erasing processing; and
a controller configured to control data stored in the nonvolatile semiconductor memory, whereinin response to the controller receiving the external command from a host apparatus, the controller compresses data in the inaccessible area and initializes a management information related to the accessible area.
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Abstract
According to one embodiment, a memory system includes a nonvolatile semiconductor memory include a first area, and a second area smaller than the first area; and a controller configured to control data stored in the nonvolatile semiconductor memory, wherein the nonvolatile semiconductor memory is configured to store a first data accessible by a host command and to a second data inaccessible by the host command, and when receiving the host command, the controller writes the second data of the first area within the second area and initializes a first address information related the first data.
11 Citations
11 Claims
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1. A memory system comprising:
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a nonvolatile semiconductor memory including an accessible area being configured to be accessed by an external command, and an inaccessible area being configured not to be accessed by the external command, the external command instructing an erasing processing; and a controller configured to control data stored in the nonvolatile semiconductor memory, wherein in response to the controller receiving the external command from a host apparatus, the controller compresses data in the inaccessible area and initializes a management information related to the accessible area.
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2. A memory system comprising:
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a nonvolatile semiconductor memory; and a controller configured to control data stored in the nonvolatile semiconductor memory, wherein the nonvolatile semiconductor memory is configured to store a first data accessible by an external command, and the nonvolatile semiconductor memory is configured to store a second data inaccessible by the external command that instructs an erasing processing, and when receiving the external command from a host apparatus, the controller compresses the second data and initializes a management information related to the first data. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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11. A memory system comprising:
a nonvolatile semiconductor memory including a first area being configured to be accessed by an external command, and a second area being configured not to be accessed by the external command, the external command instructing an erasing processing; and
a controller configured to compress a data in the second area on the basis of the external command received from a host apparatus and initialize a management information related to the first area.
Specification