To locate logic cells for placing onto the device:
- In the Find dialog box, specify Cells in the Find field, and define the criteria to locate the specific logic cell or cells.
- From the Find Results window, drag logic cells onto the Clock Resources window or the Device window to assign to the appropriate device resource.
Note: For more information, see this link in the Vivado Design Suite User Guide: Using the Vivado IDE (UG893)
Tip: You can also locate physical resources on the device, such as global clock buffers, for placing logic cells. Specify Sites in the Find field, and define the criteria as needed. Select a result in the Find Results window to highlight the physical device resource in the Clock Resources window or Device window.