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Honored ContributorNIOS II Performance
What is the fastest clock speed that I can expect to run on a NIOS II processor ? How dependant is this on which chip I choose ?
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Altera_ForumHonored Contributor
Honored Contributor<div class='quotetop'>QUOTE (BadOmen @ Jul 17 2009, 12:02 PM) <{post_snapback}> (index.php?act=findpost&pid=23158)</div>
--- Quote Start --- http://www.altera.com/literature/ds/ds_nios2_perf.pdf (http://www.altera.com/literature/ds/ds_nios2_perf.pdf)[/b] --- Quote End --- BadOmen, thank you for that source. It provided me with a lot of good information. Could you possibly clarify something about Fmax. As the name suggests I understand it is the Maximum Clock frequency (of the system\design), but how does this relate to my NIOS system ? For e.g. does it represent lets say the frequency I can expect my NIOS to run at for a given clock frequency - i.e. If I connect a 200 MHz clock out of my PLL into my NIOS II clock input and the Fmax is 100 MHz - then I can only expect that my NIOS will run at 100 MHz ? For e.g. in the document that you referred to, it states that the Fmax of a ArriaII Gx FBGA is 230 MHz - does that mean that no matter how high I raise the clock connected to the NIOS I can not expect it to run (at the best) more than 230 MHz ?
