Version Found: v1.04a and earlier
How many BAR I can use for Root Port and Endpoint?
For Root Port, use a single BAR (both in 32 or 64-bit mode).
For EndPoint, use up to 3 BARs (both in 32 or 64-bit mode).
The LogiCORE IP AXI Bridge for PCI Express (v1.04.a) (PG055) (v1.0, dated July 25, 2012) has some conflicting information (on page 5 and page 7).
This is scheduled to be resolved in ISE Design Suite 14.3.
08/24/2012 - Initial release