Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Is it possible two DDR2 controller use the same PLL?

Hi, I wonder that if two DDR2 controller can share a PLL on a CYIII. For example, Run a PLL outputting 166MHz for two DDR2 controller. I noticed that a option called "use clocks from an...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

--- Quote Start ---

Sharing PLLs is possible, as long as the frequency is the same. Just select the option and wire up the other PLL to it in the RTL

--- Quote End ---

Hi,

Thanks for reply!

I understand your point, but how to wire up?

Is there any docs on this subject I may refer to?

Thanks again!