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Altera_Forum
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18 years ago

multipliers in Cyclone parts

I am looking at using a hw multiplier in a feedback control loop. Looking at the multipliers in CII and CIII parts, it looks like it is a single cycle multiply, 18x18 or 9x9. So the fastest I could r...
Altera_Forum's avatar
Altera_Forum
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18 years ago

Hi Tns1:

The Hardware multiply's are cycles can be setup as a unregistered, single cycle, 2 cycle or 3 cycle without using external LE's.

So how you use them is up to use them is up to you, and the max clock frequency you run them at. For High frequency, (> 100 MHz) I suggest for 2 cycle multiply, for slower stuff, you can use a single cycle.

Pete