Forum Discussion
About the System PLL in Agilex 5
Thank you.
I would like to confirm whether assigning the System PLL reference clock to an HVIO pin is considered not recommended.
According to the following user guide, it appears that supplying a reference clock from an HVIO pin is possible: https://docs.altera.com/viewer/book-attachment/7knH5a7~TA2WJGdpfH~dQA/dlqlFRJhjLOWTYNYgDTWiQ-7knH5a7~TA2WJGdpfH~dQA
- Ash_R_Altera3 months ago
Regular Contributor
Hi,
Using the refclk pin from HVIO bank is definitely an accepted solution. However, there is a restriction as mentioned in the following document page:
Also, as the warning message suggests, the pin should be a clock pin which can be routed to global network.
Regards
- Ash_R_Altera3 months ago
Regular Contributor
I’d appreciate it if you could confirm whether the issue is now resolved.
Regards
- Ash_R_Altera2 months ago
Regular Contributor
Dear Customer,
I assume that your issue is resolved. As there are no further inquiries, I will step back and allow the community to assist with any future follow-up questions.
Thank you for engaging with us!
Best regards,
Altera Technical Support