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disadvantage of low skew of CTS

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hfooo1

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what are the disadvantages of low skew of Clcok Tree Synthetize?
 

hi,
what is low skew?
if you mean all regs have almost the same latency, this disadvantage is power consumption.
 

The other disadvantage is that will spend more time to run CTS.
 

Another disadvantage - Cannot take advantage of 'useful skew'.

Useful skew - Clock skew between adjacent filpflops effectively increases the clock period for the same clock frequency, so path delay negative slack is reduced. (slack = effecrive clock period - path delay - setup time).
 

hi, guys!
is low skew CTS common choice or not?
 

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