以下四个选项中，不属于NORFlash的存储特性的是（)。
- A.在进行擦除前需先将目标块内所有位都写为0
- B.应用程序不能直接在NOR Flash内运行
- C.写操作只能将数据位从1写成0,不能从0写成1
- D.存储容量一般较小，多用于存储代码
正确答案及解析
正确答案
解析
flash存储器的写操作只能将数据位从1写成0，不能从0写成1，因此在写入之前要先进行擦除操作，nor flash要求在进行擦除之前先要将目标块内所有位都写0，其容量通常在1-8MB，主要应用在存储介质中，应用程序可以直接在其中运行，不需要再把代码读到系统RAM中运行，其运行代码不需要任何的软件支持。
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