18.104.22.168. Data and Clock Arrival Times
The Timing Analyzer calculates data arrival time by adding the launch edge time to the delay from the clock source to the clock pin of the source register, the micro clock-to-output delay ( µtCO) of the source register, and the delay from the source register’s data output (Q) to the destination register’s data input (D).
The Timing Analyzer calculates data required time by adding the latch edge time to the sum of all delays between the clock port and the clock pin of the destination register, including any clock port buffer delays, and subtracts the micro setup time ( µtSU) of the destination register, where the µtSU is the intrinsic setup time of an internal register in the FPGA.
The basic calculations for data arrival and data required times including the launch and latch edges.
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