The Clocking Wizard guides you through the various functions and attributes available with the MMCM and PLL. It is recommended that you use the Clocking Wizard in your design if you plan on using the MMCM or PLL. This answer record contains information on how to access the Clocking Wizard as well as any documentation that can help you understand how to use the Wizard.
NOTE: This answer record is part of the Xilinx 7 Series FPGA Solution Center (Xilinx Answer 46370). The Xilinx 7 Series FPGA Solution Center is available to address all questions related to 7 series devices. Whether you are starting a new design with 7 series FPGAs or troubleshooting a problem, use the 7 Series FPGA Solution Center to guide you to the right information.
Where To Access the Clocking Wizard
The Clocking Wizard can be accessed from the CORE Generator software by looking in the FPGA Features and Design folder and is contained within the Clocking folder. Alternatively, type in "Clocking Wizard" in the Search field.
If you want more information on how to use the Wizard, refer to the Clocking Wizard web page. The Documentation section on the right side of the page gives you access to the Clocking Wizard data sheet: http://www.xilinx.com/content/xilinx/en/products/intellectual-property/clocking_wizard.html
For more information on MMCM, and PLL features and usage, refer to the Clock Management Tile section of the7 Series FPGAs Clocking Resources User Guide (UG472):http://www.xilinx.com/support/documentation/user_guides/ug472_7Series_Clocking.pdf