Xilinx UG472, 7 Series Clocking Resources User Guide Updated document; see revision history.
Xilinx XTP025 IP Release Notes Guide Updated for ISE 14.5 and Vivado 2013.1 Design Suite releases
Xilinx UG769 LogiCORE IP 7 Series FPGAs Transceivers Wizard v2.5, User Guide Updated in Vivado Design Suite 2013.1 and ISE Design Suite 14.5.