The Generate simulation model option gets disabled after every generation.
This issue affects all configurations.
The simulation model for your design is not generated for the second time.
Type: Answers, Errata
Area: EMIF, Intellectual Property
Generate Simulation Model Option Gets Disabled
Description
Workaround/Fix
Turn on the Generate simulation model option each time you want to generate a simulation model.
This issue will be fixed in a future version of the DDR and DDR2 SDRAM Controllers with ALTMEMPHY IP.