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Altera_Forum's avatar
Altera_Forum
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11 years ago

IO discrepancy between CIC 10.1 and 13.1

I'm upgrading IP and I see an IO mismatch between the output data widths of the CIC core generated in 10.1 versus the one from 13.1. The documentation for both shows the same formula for calculating...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

could it be the bitwidth you are referring to depends on cic being decimator or interpolator.

The equation you have given is for interpolator. For decimator you don't subtract log2(R)