6.3.4 Non-cacheable fetching

Fetches occurring when the instruction cache is disabled, or from a page with attributes not indicating Inner Cacheable, do not result in the line entering the instruction cache.

Incoming instructions from the L2 cache are stored in the fill buffers until the fetch reaches the end of the cache line or a nonsequential fetch occurs, whichever occurs first. Therefore, multiple sequential fetches from the same 64-byte region, corresponding to a cache line, can occur without incurring multiple L2 requests when a region is not given Cacheable attributes.
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