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Altera_Forum's avatar
Altera_Forum
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15 years ago

Arria 2 DDR3 shared PLL

Hi, I have two DDR3 instantiations in my design. I'm low on PLL resources and I need to share the PLL of the two DDR3 inst. In the documentation I saw that the ALTMEMPHY does not support u...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Is it the PLL you're low on or clock outputs? I'm pretty sure a number of the clocks can be shared via assignments. The altmemphy handbook talks about it. But you're right that altmemphy requires two different PLLs for some of the clcoks.