938 - Timing: What is the I/O Timing Report?

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• 740 - Lattice ispLEVER: Timing Analysis: What is the I/O Timing Report?

  Lattice ispLEVER: Timing Analysis: The I/O Timing Report (.ior) is a used to report the IO timing analysis of your design. Input Setup and Hold times (Tsu, Th) and Clock-to-Output times (Tco) are reported. The IO Timing Report sweeps across all the ...

• 6826 - Radiant: What type of clocks do the Clock Port column of the I/O Timing Analysis Report refer to?

  For I/O timing analysis, the "Clock Port" column/field could refer to the following depending on the destination clock: 1. Internal oscillator clock: If the destination clock is directly from the internal oscillator, or if the destination clock is ...

• 1150 - Diamond: What does the M or Minimum Speed grade mean in a Lattice I/O timing report?

  The M or Minimum Speed grade device appears to be faster than the fastest speed grade in the I/O timing report and the term "Minimum Speed grade" can be a bit confusing. For starters, it does NOT mean the slowest silicon device. The term refers to ...

• 7037 - All Nexus / Radiant 2023.1 or earlier: How are the clock-to-out max and clock-to-out min values on the I/O Timing Analysis report calculated?

  Clock-to-out max corresponds to the arrival time of the data of the external timing path when setup time is analyzed. Clock-to-out min corresponds to the arrival time of the data of the external timing path when hold time is analyzed. If there are ...

• 200 - Diamond: How do user get a reasonable I/O timing report when PLL phase shift is very large?

  When user change the PLL phase to improve the Tco, user caan program the PLL phase delay by more than 180 degree, e.g. 315 degree. Its equivalent effect is to advance 45 degree if one clock cycle latency is acceptable. But the Lattice software will ...