Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Number of IOPLLs in Arria 10 devices

I can instantiate more IOPLLs in my Arria 10 design (device 10AS016E4F29I3SG) than should be available. According to the documentation (https://documentation.altera.com/#/00035112-nt$nt00068592), the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Thanks for your reply, Alex. I think the fitter merged several logical PLLs into one physical PLL. The fitter report was misleading as it reported the instantiation of IOPLLs in I/O banks that do not exist in the device used. When using pins as refclk input, the fitter was not able to fit 8 IOPLLs into the device anymore.