| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively use a flash memory, while increasing data rewriting frequency. <P>SOLUTION: A flash memory control device includes an arithmetic part and the flash memory. The flash memory has a plurality of areas DA1-DA3, PA1-PA3. The plurality of areas DA1-DA3, PA1-PA3 include: the program areas PA1-PA3 which store a program executed by the arithmetic part and wherein rewriting of data is not performed; and the data areas DA1-DA3 which store data and wherein rewriting of the data is performed. When a cumulative frequency at which the data are written reaches a maximum rewriting frequency, the arithmetic part executes exchange processing to a first area allocated as the data area DA3/DA1/DA2. In the exchange processing, the first area and a second area allocated as the program area PA3/PA2/PA1 are exchanged. <P>COPYRIGHT: (C)2011,JPO&INPIT |
