位于主存和嵌入式微处理器内核之间，存放最近一段时间微处理器使用最多的程序代码和数据的存储器是()。
- A.MMC
- B.Cache
- C.NOR Flash
- D.SDRAM
正确答案及解析
正确答案
解析
Cache是一种容量小、速度快的存储器陈列，它位于主存和嵌入式微处理器内核之间，用于存放最近一段时间微处理器使用最多的程序代码和数据。选项A，MMC是存储管理单元的英语缩写，它在CPU和物理内存之间进行地址转换。选项C，NOR Flash是一种ROM类的主存储器，它凭借可擦写次数多、存储速度快、存储容量大且价格便宜等优点，在嵌入式项目中得到了广泛应用。选项D，SDRAM是一种RAM类的主存储器。
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