Is there any wiring guidance or provision for each trace length when Cyclone® V and DDR3 are not fly-by-connected?

The External Memory Interface (EMIF) Handbook states "For devices that do not support flyby, refer to the DDR2 layout guidelines. 
Please refer to the following DDR2 layout guidelines.

External Memory Interface Handbook Volume 2: Design Guidelines For UniPHY-based Device Families
Layout Guidelines for DDR2 SDRAM Interface

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Category: External Memory Interface 
Tools:- 
Device: Cyclone® V