| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce processing overhead by reducing the number of times of access to a non-volatile memory. SOLUTION: When a data writing instruction is issued, a writing controlling means 40 obtains a block number to which data to be written in response to the instruction is belonging. Then, whether or not data stored in a cache memory 80 should be stored in a corresponding area in a non-volatile memory 70 is decided based on the obtained block number and a block number stored in a block number storing part 90. Especially, when the obtained block number is different from the block number stored in the block number storing part 90, the data stored in the cache memory 80 are stored in a corresponding area in a non-volatile memory 70.</p> |
