| 摘要 |
<p>PURPOSE: To inhibit writing needless data in a non-volatile memory in which the number of times of writing is limited. CONSTITUTION: When data written. in a non-volatile memory 5 is decided, data is read out from the non-volatile memory 5, and it is compared with data to be written. Only when these data are different each other, data is written in the non-volatile memory 5, when it is judged as the same data as a result of comparison, data is not written.</p> |
