It has an integrated memory management unit that is normally used to provide access to the address space of one process by using the same page table lookup as the PPE.
它具有一个集成的内存管理单元，通常使用与PPE类似的页表查询机制来提供对某个进程地址空间的访问。
Neither a memory management unit nor an instruction or data cache are used.
这既不需要使用内存管理单元，也不需要使用指令或数据缓存。
One example is the ability for Linux to run on a process with a memory management unit (MMU), as well as those that provide no MMU.
一个例子是Linux可以在一个具有内存管理单元(MMU)的处理器上运行，也可以在那些不提供MMU的处理器上运行。
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