Forum Discussion
Altera_Forum
Honored Contributor
10 years agoYes, I agreed with bfkstimchan's comment above. The toggle rate will base on the I/O performance target with specified maximum drive strength and load. The actual achievable I/O signal frequencies depends on design and system specific factors and is best determined using HSPICE/IBIS simulations.
There is a link published by Altera also recommend user to use IBIS/HSPICE to determine the I/O signal frequencies https://www.altera.com/support/support-resources/knowledge-base/solutions/rd01132009_577.html