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How does cache work?

Hi,

I want to know something about the implementation principle of cache, is there anyone related document, not cache user's guide, but the cache is how to achieve?For example, the cache is a cache through which physical memory?Cache between physical memory and internal memory address corresponding to the address table?Cache hit the algorithm principle?Into the cache and cache memory is how to choose?How to operate?Could you please help me, if you can find this part of the information?