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Intel: When using two DDR4 in Arria® 10 devices, is it possible to drive two DDR controllers with one reference clock?
Arria
Category: External memory interface
Tools: Quartus® Prime / Quartus® II
Device: Arria® 10
It is possible, but there are the following restrictions.
- Connect a common pll_ref_clk in the RTL code
- Place related DDR controllers in the same column
- Place related DDR controllers in adjacent banks
Reference information
https://www.altera.com/en_US/pdfs/literature/hb/external-memory/emi.pdf
(See the Resource Sharing Guidelines for Arria 10 EMIF IP section.)
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