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Altera_Forum
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12 years ago

why the same path have different clock delay ?

why the same path have different clock delay ? The "Data Arrival Path" and the "Data Required Path" route the same path ,from "PLLREFCLKSELECT_X0_Y7_N0" to "CLKCTRL_G5", but why the time Incr a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

The Data Arrival Path is showing the Source Clock Path + Data Path. The Data Required Path is showing the Destination Clock Path. The part shown in the screen-shots is just the clock path portion of each one. (I believe it's an older version of Quartus, as the newer ones have a more clear demarcation in the Data Arrival Path of which part is Clock and which part is Data).