4529 - Diamond 3.5: Does recovery and removal timing analysis is performed on Flip-Flop when <strong>Infer GSR </strong>(Global Set/Reset)&nbsp;option is set to True in Strategy&nbsp;setting?

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• All Nexus / Radiant: Why can't users see reset signals on the timing analysis reports even without setting the set_false_path constraints?

  Resets are not timed or cannot be checked on the timing analysis reports if they are using Global/Set Reset (GSR) component. GSR will be used if the following are set: 1. GSR is instantiated on the RTL and set to the reset signal. 2. GSR-related ...

• Diamond / Synplify Pro: Why is the Frequency for Synplify Pro Strategy Setting is set to 1 MHz when using the Area preset strategy?

  When selecting Area preset strategy, the Frequency setting on the Synplify Pro will change to 1 MHz. If the user changes Frequency setting this to a mid or higher value, the optimization will try to meet that higher frequency and therefore the area ...

• Radiant: Does Radiant perform static timing analysis (STA) on reset pins/signals?

  Radiant performs static timing analysis (STA) on reset pin/signals that are using Local Set/Reset (LSR). To use LSR, user need to make sure that the GSR-related strategy settings are False/OFF (Force GSR on Synthesis and Infer GSR on MAP). User also ...

• 2592 - What does "potential circuit loops found in timing analysis" in trace report&nbsp;mean?

  Solution: The use of combinational loops has long been discouraged because this can cause significant stability and reliability problems in a design. The combinational loop behavior is usually dependent on the relative propagation delays of the ...

• 6017 - MachXO2: There are no timing parameters specified in the datasheet for the XO2 slice Flip-Flop (ex. CLK vs LSR recovery time, CLK vs LSR removal time, and LSR minimum pulse). Where can I find the timing values?

  The recommendation is to create a simple test design that uses LSR, with your target device. Set constraints and examine the timing report for the concerned path (CLK vs LSR). The map and par trace reports will include all delay paths and timings. ...