7081 - Radiant: How can user perform Timing Analysis using a different speed grade other than the speed grade of the selected device (or the PAR speed grade)?

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• 1587 - Diamond: What are the different factors that affect device speed, temperature and voltage selection during software timing analysis?

  Software uses different temperatures and voltages for timing analysis based on the following factors: Commercial vs. Industrial Part selection.: Commercial part selection enforces the following DEFAULT temperatures for Setup and Hold analysis (based ...

• 941 - Diamond: Timing: Why does the hold analysis use a different speed grade?

  Diamond: Timing: When running a Hold analysis the default speed grade run is the -M. The -M speed grade is the fastest device across a process and is usually the worst case for a hold analysis. Ideally when looking at a hold analysis the IO Timing ...

• 6422 - All Nexus / Radiant version 2023.1 or earlier: Are there any guidelines when changing the speed grades for Place & Route Design and Place & Route Timing Analysis on the strategy settings?

  It is not recommended to change the default speed grade settings for both the Place & Route (PAR) Design and Place & Route Timing Analysis. DEFAULT VALUES: The default values (especially for HOLD) are for worst case timing calculations. For PAR ...

• 7420 - Radiant: Why is the result of my timing different on the PAR report compared with the TWR report?

  The result from .PAR and from .TWR is expected to be different. For Radiant 2023.2, multi-corner timing analysis is implemented, the idea is for: A. 2023.2 1) PAR Timing Analysis (.PAR) - The Timing model used is the model with "WORST" case at ...

• 7228 - Radiant: Why is the speed grade showing that it is using a timing model at 1.0V and not lowest specified supply voltage which is 0.95V?

  The 1.0 V specified on the speed grade 8_High-Performance_1.0V is just the name of the speed grade. By default, the voltage used for the setup analysis corner is 0.95 V. You can see this on the Device Constraints Editor (DCE) --> Global Tab --> ...