Prefetch Options

These can all be selected from the Interfaces page of the Xplorer Configuration Editor.

Selecting a non-zero count of cache prefetch entries option selects whether prefetch is included; the other options modify its behaviour.

Xtensa processors can prefetch to instruction and data caches if the relevant cache configuration options are compatible. If not, then prefetch will only be supported to the data cache. The requirements for prefetching to both instruction and data caches are as follows: