| 摘要 |
A semiconductor memory device (19a) using inexpensive block access semiconductor memories for storage media and able to be treated like a usual randomly accessible system memory, including a first semiconductor memory (17a) and a second semiconductor memory (18a), wherein the second semiconductor memory is a cache of the first semiconductor memory, the first semiconductor memory is accessed via the second semiconductor memory, there are a first address region and a second address region on logical memory addresses accessed from the outside, at least part of the second semiconductor memory is mapped to the first address region, and a function of controlling data transfer between the first semiconductor memory and the second semiconductor memory by accessing the second address region is provided, and an access method and a memory control system of the same. |
