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AR# 66172

Tactical Patch Request - 2015.4 - Inverted and non-inverted LUTRAMs placed in same site


In Vivado 2015.4, LUTRAMs such as two RAM32Ms can be placed into the same SLICE even though they have different clock inversion properties (IS_WCLK_INVERTED=1 compared to IS_WCLK_INVERTED=0).

This is an illegal placement and can lead to functional issues.


Expectation with the patch installed:

The placement results should not include two LUTRAMs with different inversions in the same SLICE.

Expectation without the patch installed:

An illegal placement is possible.


Associated Attachments

Name File Size File Type
AR66172_vivado_2015_4_preliminary_rev1.zip 6 MB ZIP
AR# 66172
Date Created 12/09/2015
Last Updated 01/12/2016
Status Active
Type General Article
  • Vivado Design Suite - 2015.4