Critical Issue
Description
This problem affects DDR3 products.
The user interface incorrectly allows you to select a DDR3 quarter-rate memory interface for a Cyclone V device; however, DDR3 quarter-rate interfaces are not supported for Cyclone V devices.
Resolution
The workaround for this issue is to not select a quarter-rate DDR3 interface if you are using a Cyclone V device.
This issue will be fixed in a future version.