| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage device capable of flexibly determining data to be pre-read. SOLUTION: This storage device has a nonvolatile memory (2), a buffer memory (4) whose accessing speed is faster than that of the nonvolatile memory and a control circuit (5). The control circuit generates a pre-read data management table obtained by associating the logical address of pre-read data designated by a pre-read command inputted from the outside with a buffer memory address at which the pre-read data are stored, reads the data designated by the command from the nonvolatile memory to store the data in the buffer memory as the pre-read data, and outputs corresponding pre-read data from the buffer memory when a logical address designated by a read command inputted from the outside coincides with a logical address associated by the pre-read data management table. COPYRIGHT: (C)2005,JPO&NCIPI
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