Use DCM for generate clock of 78 mhz from 100 mhz clock

Question

I have a clock of 100 mhz. I want to use DCM to create a clock of 78 mhz.

I think I should use two DCM, where the output of first DCM goes into the second DCM but I don't know if this will work.

Best Regards

Answer 1

What device are you targeting? On a Spartan-6 the DCM_CLKGEN allows a multiplier of 39 and a divider of 50, which gets you your 78MHz.