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AR# 37864

13.1 Timing - Component Switching Limit on DCM Disagrees with Data Sheet

Description

When I run TRCE, the Component Switching Limit Check shows Tdcmfx at 100 ns, which conflicts with the 200 ns value shown in the data sheet. Is the value from TRCE or the data sheet the correct one?

Solution

The 200 ns value shown in data sheet for Tdcmfx is the correct number. This issue is fixed in ISE Design Suite 13.1.
AR# 37864
Date Created 09/03/2010
Last Updated 10/07/2011
Status Active
Type Known Issues
Devices
  • Spartan-3A DSP
Tools
  • ISE Design Suite - 12.2
  • ISE Design Suite - 12.3
  • ISE Design Suite - 12.4
  • ISE Design Suite - 13.1