Configuring the Dynamic Clock Multiplexers

You configure the dynamic clock multiplexers in the Interface Designer. Expand Device Setting > Clock/Control Configuration and then click the multiplexer for the bottom, left, right, or top.

Table 1. Global Buffer Configuration
Option	Choices	Description
Core Clock n Pin Name	User defined	Specify a clock from the core that drives the global buffer. You can use up to four.
Enable Dynamic Mux 0 Enable Dynamic Mux 7	On or off	Turn on this option to enable the dynamic mulplexer. The clock multiplexers (static and dynamic) are numbered from 0 to 7. The dynamic ones are 0 and 7.
Dynamic Clock Mux Select [1:0] Bus Name	User defined	Specify the bus that controls the dynamic multiplexer.
Dynamic Clock Pin Name	User defined	Specify the clock name that drives the core RTL design.
Dynamic Clock Input n	List of sources¹ or None	Choose the clock source. Unassigned indicates that you have not yet used that resource. Choose None if you want to leave an input unassigned. A clock source must be assigned to the dynamic clock multiplexer input 0.
Independently Connect to Core	On or off	Enable this option if you want the clock source to also be available to the core.

¹ Refer to the Driving the Global Network topic in the data sheet for the list of available clock sources.