Clock input to ASMI Parallel IP Core is limited to 25 MHz.
For more information, please see the documentation.
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_altasmi_parallel.pdf
(search for clkin)
--------------------
Category: IP (ASMI Parallel)
Tools:-
Device: Cyclone® IV