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AR# 58085

14.7 Spartan-6 Timing Analysis - Speed files - Hold violations in silcon for ICAP


When running my Spartan-6 design with an ICAP, I receive hold violations on the pins of the ICAP.  

How can I work around this?


For some recent characterization results, the input pins of the ICAP have an incorrect hold time requirement in the speed file for Spartan-6.   

The hold time needs to change from 0ps to ~1200ps for LX9, LX16, LX25, LX45T, LX75T, LX100T, and LX150T devices. 

The workaround is to add a LUT in the data paths that drive the ICAP.


Associated Attachments

Name File Size File Type
ar58085_S6_ICAP_timing_14_5_all_preliminary_rev1.zip 9 MB ZIP
AR# 58085
Date Created 10/22/2013
Last Updated 01/07/2015
Status Active
Type General Article
  • ISE Design Suite - 14.6
  • ISE Design Suite - 14.7