Patent ID: 7196961

Claim:
A memory control device for controlling accesses to a memory and switching, on a predetermined condition, between a first mode in which an entire area of the memory is refreshed and a second mode in which a specific area of the memory is refreshed, the device comprising: a storage unit operable to store area information indicating the specific area; a receiving unit operable to receive, upon receipt of an access request, an address of data requested by the access request and data information indicating whether the requested data is first type data to be stored in the specific area or second type data other than the first type data; a converting unit operable to convert, with reference to the area information, the received address to an address of a location within the specific area if the data information indicates the first type data, and to an address of a location outside the specific area if the data information indicates the second type data; and an accessing unit operable to output the converted address to the memory and make an access according to the access request.