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Altera_Forum
Honored Contributor
10 years agoHi, the dedicated clock pins can be used for data input pins for differential I/O standard. When you use the single-ended I/O standard, only the CLK[0:23]p pins serve as the dedicated input pins to the PLL
You can refer to the pin connection guidelines for more details about this CLK[0:23][p:n] https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/dp/arria-v/pcg-01013.pdf