Certain Cyclone V Device Pins Unavailable for Bidirectional I/Os in Soft Memory Interfaces

Description

This problem affects DDR2 and DDR3 products.

The following Cyclone V device pins cannot be used for bidirectional I/Os, including DQ/DQS signals, for soft memory interfaces:

For 5CGXBC9 and 5CGXFC9 devices:

• AE15 and AE16 for 672 FBGA packages

• AG19 and AG18 for 896 FBGA packages

• AL23 and AK23 for 1152 FBGA packages

For 5CGXBC7 and 5CGXFC devices:

• AA18 and Y18 for 672 FBGA packages
• AG21 and AF20 for 896 packages

Resolution

There is no workaround for this issue.

This issue will be fixed in a future version.