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Altera_Forum
Honored Contributor
13 years agoTimeQuest and Timing constrataints, what to we enter for tsu, th, tco, tpd
When we are constraining a design we can enter values for the tsu, th, tco, and tpd as well as the clock itself. My question is that, for a given design how do I know what tsu, th, tco I should be...
Altera_Forum
Honored Contributor
13 years agotsu, th, tco constraints are usually specified for IO pins. These values will depend on the protocol/device data sheet that you are interfacing with.
There is no need to specify tsu, th for internal data paths as they will be taken care of by Quartus tool depending on your target device.