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report_analysis_coverage about min_pulse_width

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tibuzen

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When I check the result of "report_analysis_coverage" about "min_pulse_width", one case as following:

aaa_reg/CDN(low) min_pulse_width untested no_clock

actually, the clock source of aaa_reg is CLOCK1, and the CDN is signal double sync from CLOCK1.

When I report timing for "aaa_reg/CDN", is does exist.

But why it is reported as "no_clock"???
 

Hi,

Can you try following command once...
report_min_pulse_width
report_min_pulse_width -verbose
report_min_pulse_width [get_pins aaa_reg/CDN] -verbose


It can provide you the reason of min_pulse_width violation.

You can also try following commands..
report_pulse_clock_min_width
 

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