| 摘要 |
PROBLEM TO BE SOLVED: To perform appropriate cache control in response to the change of a state concerning the cache control using mapping between a logical address and a physical address. SOLUTION: A memory system defines a cache, where a storage position on the cache 20 is determined by the physical address, as a cache destination, and identifies the storage position on the cache by color ID by each page to be the mapping unit of the logical address and the physical address in a fixed size of area on a memory 40. A physical address space is constituted to perform access to the same address on the memory from the plurality of physical addresses with different colors assigned thereto. The page on the logical address space, to which the page on the constituted physical address space is mapped, performs access to the page on the same memory as that of the mapped physical page, and be changed to map another physical page with a different color. COPYRIGHT: (C)2010,JPO&INPIT
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