Device Family: Stratix® III, Stratix® IV E, Stratix® IV GT, Stratix® IV GX, Stratix® V E, Stratix® V GS, Stratix® V GT, Stratix® V GX

Type: Answers

Area: EMIF, Intellectual Property


IP Product: DDR3 SDRAM Controller MegaCore supporting UniPHY

Is there an issue with Skip memory initialization option in UniPHY based DDR2 SDRAM and DDR3 SDRAM Controller?

Description

Yes, in the 11.0 version of the IP, Skip memory initialization option does not skip the initialization process. UniPHY based DDR2 SDRAM and DDR3 SDRAM controller does not support skipping memory initialization option.

 

Although the IP does not skip initialization in the simulation, when this option is turned on, required delays between specific memory initialization commands are skipped to speed up simulation so it does help speed up the simulation.

 

The IP GUI will be fixed to reflect the true function of this option in the future version.