Forum Discussion
Altera_Forum
Honored Contributor
8 years agoSorry to reply to such an old thread, but I have a similar question. We're using a Cyclone V and the only available clock input is a "Dedicated Transceiver REFCLK". I am feeding that into a PLL (altera_pll megafunction) that is used to clock FPGA fabric. We're not using any transceivers.
It compiles fine, so the tools seem ok with it. I set the IO Standard to LVDS. I found this that also seems to say it is ok: https://www.alteraforum.com/forum/attachment.php?attachmentid=14119 But some knowledgeable people here seemed to question it. I did not do anything special with workarounds. But we're about to get a board made and it would be nice to have a clock. Can someone confirm that this is ok.