Read operation method of nonvolatile memory, memory system including the nonvolatile memory, and operation method of the memory system
First Claim
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1. A read operation method of a nonvolatile memory, the read operation method comprising:
- selecting at least a first selection defence code from among a plurality of defence codes by using read voltage level determination information and read environment information, the read environment information including values respectively corresponding to a plurality of factors, the plurality of defence codes being executable code;
determining a level of a read voltage for performing a read operation based on the first selection defence code; and
performing the read operation by using the read voltage having the determined level.
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Abstract
A read operation method of a nonvolatile memory includes selecting at least a first selection defence code from among a plurality of defence codes by using read voltage level determination information and read environment information, the read environment information including values respectively corresponding to a plurality of factors; determining a level of a read voltage for performing a read operation based on the first selection defence code; and performing the read operation by using the read voltage having the determined level.
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20 Claims
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1. A read operation method of a nonvolatile memory, the read operation method comprising:
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selecting at least a first selection defence code from among a plurality of defence codes by using read voltage level determination information and read environment information, the read environment information including values respectively corresponding to a plurality of factors, the plurality of defence codes being executable code; determining a level of a read voltage for performing a read operation based on the first selection defence code; and performing the read operation by using the read voltage having the determined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An operation method of a memory system comprising a memory device and a memory controller for controlling the memory device, the operation method comprising:
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collecting, by the memory controller from the memory device, read environment information comprising values respectively corresponding to a plurality of factors in response to a read request received from outside of the memory controller; selecting, by the memory controller, at least one selection defence code from among a plurality of defence codes by using read voltage level determination information and the read environment information, the plurality of defence codes being executable code; determining, by the memory controller, a level of a read voltage by controlling the memory device based on the at least one selection defence code; and controlling, by the memory controller, a read operation on the memory device based on a result of a read voltage level determination operation, wherein the controlling is performed by the memory controller. - View Dependent Claims (16)
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17. A memory controller for controlling a memory operation on a memory device, the memory controller comprising:
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a memory configured to store programs related to defence code selection and read voltage level determination information; and a processor connected to the memory and configured to execute the programs stored in the memory in order to select at least one selection defence code from among a plurality of defence codes by using the read voltage level determination information and read environment information comprising values respectively corresponding to a plurality of factors collected from the memory device, in response to a read request received from outside of the processor, the plurality of defence codes being executable code. - View Dependent Claims (18, 19, 20)
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Specification