Occasional Contributor
Frequent ContributorHi Jens,
Apologize for the delay. I believe you may already know that the LF_R*, LF_C* and CP is referring to loop filter resistor, loop filter capacitor and charge pump. However the information that you are asking specifically for your "case usage" (to calculate the charge pump or loop filter) is not available for public use. We've been checking the documentation and discussing internally back and forth regarding this inquiry with multiple different teams to end up with the same answers. All the information published in the Intel PLL documents are sufficient for users to be able to use the PLL IPs as it is without any issue. There no particular reason or justification for the engineering team to be releasing any other information than what has already been available/published in the official documents. Users can use Quartus PLL IP to get these M,N,C, LP, LF counter parameters either one of this method:
a) Set the Fref and Fout in ALTPLL IP and run Quartus compilation. After full compilation, user can see the information in Compilation Report->PLL Summary.
b) In the ALTPLL IP set the Fref and Fout settings in the PLL reconfiguration and select Generate a Configuration file in the ALTPLL MegaWizard Plug-In Manager. This will then generate either a .hex or .mif file with all the counter settings. Hence customer can use .hex or .mif file to set the ALTPLL_RECONFIG IP.
I apologize that this may not address to what you are looking for specifically, however the counters information can be be obtain without any issue (using the above methods). Thank you for your understanding.
Regards,
Nooraini
