We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 42693

PlanAhead - I cannot find the recovery or removal data of an asynchronous Flip-Flop from report_timing


I am trying to analyze the recovery and removal timing for an FDC flop (asynchronous clear), but cannot find the information or the commands to generate that data.


A comprehensive report should iterate through all path groups (including the async defaults) and report the worst violations.

You can report the specific group timing with the group filter:

% report_timing -group **async_default**
AR# 42693
Date Created 07/11/2011
Last Updated 12/15/2012
Status Active
Type General Article
  • PlanAhead - 13.1