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AR# 22008

Embedded Tri-mode Ethernet MAC Wrapper v3.1 - Synplify removes IDELAYCTRL from RGMII configurations


General Description: 

When using the Embedded Tri-mode Ethernet MAC Wrapper v3.1 with the RGMII interfaces in Synplify 8.0 or 8.1, Synplify removes the IDELAYCTRL module.


This is a Synplify bug in which it removes the IDELAYCTRL whenever the RDY output is left open. 


A patch is available which works around this Synplify issue by adding the "syn_noprune" synthesis attribute to the IDELAYCTRL block. To obtain this fix, install the patch that is available in the Embedded Tri-mode Ethernet MAC Wrapper v3.1 Core Release Notes and Known Issues Answer Record (Xilinx Answer 21903) and then regenerate the wrappers.

AR# 22008
Date Created 09/04/2007
Last Updated 05/19/2014
Status Archive
Type General Article