The core fails to implement in the ISE Design Suite13.2 due to changes on the underlying GTXE2_COMMON module. This module is instantiated as part of the GTX wrapper by the 7 Series Integrated Block Wrapper.
Note: "Version Found" refers to the version the problem was first discovered. The problem may also exist in earlier versions, but no specific testing has been performed to verify earlier versions.
To fix this problem, generate a new core after installing the ISE Design Suite13.2. The ISE Design Suite13.2 contains v1.1 Rev 1 of the 7 Series Integrated Block Wrapper for PCI Express. See(Xilinx Answer 42517)for more information about v1.1 Rev 1.
Revision History 12/06/2011 - Added version resolved reference to AR 40469 10/21/2011 - Added link to release notes AR. 07/06/2011 - Initial Release