This Figure displays the shared logic options in the Vivado IDE.
•Include Shared Logic in the Core – Select this option to include the shared clocking resource as part of the core itself. Use this option when only one instance of the core is used in the design, or when this core instance is the first of multiple cores to be generated.
•Include Shared Logic in the Example Design – Select this option when the shared clocking resources are not required in the core. Use this option only when multiple instances of the core are used in the design, and the first core instance is already generated. This preserves clocking resources.