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Honored Contributor
13 years agoIt is also worth pointing out that all read cycles done by the nios cpu assert all 4 byte enables, the unwanted bytes are discarded internally.
Write cycles will assert the 'correct' byte enables. However if a byte write is done to an 8-bit slave the 'fabric' will always generate 4 write cycles - 3 of which will have the (single) byte enable inactive.