Device Family: Arria® II GX

Device Family: Cyclone® III

Device Family: Cyclone® IV E

Device Family: Cyclone® IV GX

Device Family: Stratix® III

Device Family: Stratix® IV E

Device Family: Stratix® IV GT

Device Family: Stratix® IV GX

Type: Answers

Area: EMIF

Area: Intellectual Property


IP Product: DDR3 SDRAM Controller supporting ALTMEMPHY

Warning: Illegal value detected on input clock

Description

When simulating an Arria® II GX ALTMEMPHY-based memory controller design, this warning message may appear for the input clock to the DLL. This warning message is harmless and can safely be ignored by the user.