Device and method for recording block status information
First Claim
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1. A device for recording the block status information of a nonvolatile memory, comprising:
- an interface unit electrically connected to at least one nonvolatile memory including a plurality of blocks, each being a basic unit for erasing data of said at least one nonvolatile memory;
a processor connected to said interface unit through which the status of a block of said at least one nonvolatile memory is detected to obtain the block status information; and
a memory unit connected to said processor for temporarily storing said block status information which is then written into one of said plurality of blocks by means of said processor through said interface unit after the end of the detection.
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Abstract
A device and method for recording the block status information of a nonvolatile memory is disclosed. An interface unit is used to host the nonvolatile memory so that a processor connected to the interface unit can detect the block status information of the nonvolatile memory through the interface unit to obtain a valid or invalid block address. Then, the valid or invalid block address is temporarily stored in a memory unit until all of the blocks are detected by means of the processor. Finally, the valid or invalid block address temporarily stored in the memory unit is written into the nonvolatile memory.
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Citations
21 Claims
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1. A device for recording the block status information of a nonvolatile memory, comprising:
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an interface unit electrically connected to at least one nonvolatile memory including a plurality of blocks, each being a basic unit for erasing data of said at least one nonvolatile memory;
a processor connected to said interface unit through which the status of a block of said at least one nonvolatile memory is detected to obtain the block status information; and
a memory unit connected to said processor for temporarily storing said block status information which is then written into one of said plurality of blocks by means of said processor through said interface unit after the end of the detection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for recording the block status information of a nonvolatile memory, comprising the following steps:
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(A) performing an initialization to set at least one reference value;
(B) detecting at least one nonvolatile memory having a plurality of blocks to obtain the status of at least one block which is a basic unit for erasing data of the at least one nonvolatile memory; and
(C) writing the detected information into a memory unit until the end of the detection, and then writing said at least one block status information into one of the blocks of said at least one nonvolatile memory. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification