common_post_cts_timing_settings.tcl

synopsys icc 使用参考脚本

## ICC RM Version: B-2008.09        

echo "\tLoading :\t\t [which [info script]]"

# enable the recovery and removal timing checks only after CTS
set_app_var enable_recovery_removal_arcs true




if {$ICC_STRATEGY == "QOR"} {

## Timing Derating and CRPR - CRPR is usually used with timing derate (bc_wc) and with OCV
## These two are only enabled by default in the QOR flow

  echo "SCRIPT-Info : Enabling Timing Derating and CRPR in the QOR flow"



if {!$MCMM_MODE } {


  set_app_var timing_remove_clock_reconvergence_pessimism true 
  
  ##derate values may vary by corner
  set_timing_derate -early 0.95 -cell_delay 
  set_timing_derate -late  1.05 -cell_delay 
  set_timing_derate -early 0.95 -net_delay 
  set_timing_derate -late  1.05 -net_delay



} else {

   set_active_scenarios [lminus [all_scenarios] $ICC_MCMM_CTS_SCENARIO] 
   foreach scenario [all_active_scenarios] { 
     current_scenario $scenario 
     set_app_var timing_remove_clock_reconvergence_pessimism true 
  
     ##derate values may vary by corner
     set_timing_derate -early 0.95 -cell_delay 
     set_timing_derate -late  1.05 -cell_delay 
     set_timing_derate -early 0.95 -net_delay 
     set_timing_derate -late  1.05 -net_delay
   };

  }
} else {


  echo "SCRIPT-Info : Timing Derating and CRPR are not enabled in the TTR flow"
  #set_app_var timing_remove_clock_reconvergence_pessimism true
  
  ##derate values may vary by corner
  #set_timing_derate -early 0.95 -cell_delay 
  #set_timing_derate -late  1.05 -cell_delay 
  #set_timing_derate -early 0.95 -net_delay 
  #set_timing_derate -late  1.05 -net_delay


}




## Set Area Critical Range
## Typical value: 5 percent of critical clock period
if {$AREA_CRITICAL_RANGE_POST_CTS != ""} {set_app_var physopt_area_critical_range $AREA_CRITICAL_RANGE_POST_CTS}


## Set Power Critical Range
## Typical value: 5 percent of critical clock period
if {$POWER_CRITICAL_RANGE_POST_CTS != ""} {set_app_var physopt_power_critical_range $POWER_CRITICAL_RANGE_POST_CTS}