| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a storage control device that can efficiently reduce power consumption necessary for refreshing in accordance with the use status of a semiconductor storage device. <P>SOLUTION: In data writing and reading control on a DRAM 30, use status information representing the use status of the storage area of the DRAM 30 is stored and updated in a register 22, and according to the use status information stored and updated in the register 22, used areas 30A and 30C are refreshed at predetermined refresh periods to hold the storage state. <P>COPYRIGHT: (C)2007,JPO&INPIT |
