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AR# 60123

2014.2 Vivado Synthesis - DONT_TOUCH attribute is being ignored due to gated clock conversion

Description

This issue occurs in cases where a DONT_TOUCH attribute is applied to a lower level module which contains clock gating logic.

When the gated clock conversion is turned on, Vivado Synthesis ignores the DONT_TOUCH attribute and converts the gated clock regardless.

Solution

This is a known issue in Vivado Design Suite 2014.2 and older versions and is fixed in the 2014.3 release.

AR# 60123
Date Created 04/03/2014
Last Updated 10/08/2014
Status Active
Type Known Issues
Devices
  • Artix-7
  • Artix-7Q
  • Kintex UltraScale
  • More
  • Kintex-7
  • Kintex-7Q
  • Virtex UltraScale
  • Virtex-7
  • Virtex-7Q
  • Less
Tools
  • Vivado Design Suite - 2013.4
  • Vivado Design Suite - 2014.1