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Altera_Forum
Honored Contributor
21 years agoOmitting dcache AND icache in f-core
Hello, is it possible to omit both, dcache and icache from f-core CPU (in NiosII v1.1)? Since it is possible to generate a f-core CPU without dcache by setting the 'cache_omit_dcache&#...
Altera_Forum
Honored Contributor
21 years agoThank you for your information BadOmen!
To sort things out, I completely agree with your explanation of the main purpose of caches. However, what happens when cache and memory operate at the same speed? In my design only on-chip memory - every M4k block not used by other entities - is present. As I understand the documentation of Avalon bus a read transfer may be issued in each cycle, no latency. So the complete transfer is finished within one cylce. I do not understand, why fetching from cache should be faster than that. jackie