| 摘要 |
A memory control device controls data accesses to a memory which is composed of multiple banks and is switched between a normal mode for refreshing all banks and a power-saving mode for refreshing a bank. The memory control device includes: a setting information storage unit for storing a boundary address between memory areas to be and not to be refreshed in the power-saving mode; type information storage unit for receiving, from a CPU, and temporarily storing data information indicating whether data will be used in the power-saving mode; and an address converting unit for receiving a data access request from the CPU and converting, with reference to the boundary address, the address of requested data to an address inside or outside the refresh area depending of whether the data information indicates the data will or will not be used in the power-saving mode.
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