How do we read the slack report?

[pd_vlsi]

hello,


how do we read the slack report?

in my slack report

timeReq slackR/slackF setupR/setupF instName/pinName
16.66 0.291/-0.926 0.096/0.175 EP1...........

what does slack R/F impliesw.rt setupR/F?

thanks

 

[its_thepip]

Re: slack report

plz explain the question clearly

 

[rsrinivas]

slack report

Hi,
i.e slack rise time slack fall time
setup rise time setup fall time
pin-pin delay's, reg-reg delays, path delays
wire delays will be specified in a slack report
@ the end u get a clock rise time library setup time
and finally u get a negative or positive value.
if slack is positive it's fine else if negative decrease ur clock period until u get the slack as 0 or some +ve value.