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Altera_Forum
Honored Contributor
16 years agopll reconfiguration on cycloneIII
Dear all, My requirement is to have a pll that can be reconfigured on fly to 2 different frequency 100 MHz and 50 MHz. My input clock is 5MHz. I am using 2 ROM having the settings for the 2 fre...
Altera_Forum
Honored Contributor
16 years agoCyclone III is said in the thread title, and 5 MHz is the minimal clock input frequency for the device. So by specification, it should work. But I would also prefer your solution with a clock mux, because it involves less effort and no PLL re-locking after clock switch.