| 摘要 |
PURPOSE: To provide an erroneous write prevention system for preventing data from being written in an erroneous area inside a memory. CONSTITUTION: This system is provided with a main memory medium 2 capable of storing the plural data of pages which are the minimum write units of the data, write inhibition flags provided corresponding to the respective pages of the main memory medium 2 and provided with set/reset states whose reset state indicates write inhibition to the respective pages and a write means 1 for performing write to the corresponding page of the main memory medium 2 and turning the writ,e inhibition flag to the set state when the write inhibition flag corresponding to the page is in the reset state and not performing the write to the corresponding page of the main memory medium 2 when the write inhibition flag is in the set state when the instruction for the write to the prescribed page of the main memory medium 2 is given from the outside. |
