UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 21403

Embedded Tri-mode Ethernet MAC Wrapper v2.1 - The CLK_COR_SEQ_1_2 attribute is incorrectly set for 1000BASE-X and SGMII interfaces in the gt11_dual_1000X file

Description

General Description: 

Configurations of the Embedded Tri-mode Ethernet MAC Wrapper v2.1 that use 1000BASE-X or SGMII physical interface options incorrectly set the CLK_COR_SEQ_1_2 attribute for the GT11 instances in the gt11_dual_1000X.v(vhd) files. Currently, it is set to "00101010000," but it should be set to "00001010000."

Solution

This will be fixed in the next release of the wrappers which will be released in 7.1i IP Update #3. 

 

To work around this issue, change the CLK_COR_SEQ_1_2 attribute from "00101010000" to "00001010000" in the "gt11_dual_1000X.v" or "gt11_dual_1000X.vhd" file for both GT11 instances AND the constraints in the ".ucf" file: 

 

gt11_dual_1000X.v: 

Change:  

defparam GT11_1000X_A.CLK_COR_SEQ_1_2 = 11'b00101010000; 

defparam GT11_1000X_B.CLK_COR_SEQ_1_2 = 11'b00101010000; 

To: 

defparam GT11_1000X_A.CLK_COR_SEQ_1_2 = 11'b00001010000; 

defparam GT11_1000X_B.CLK_COR_SEQ_1_2 = 11'b00001010000; 

 

gt11_dual_1000X.vhd: 

Change :  

GT11_1000X_A : GT11  

... 

CLK_COR_SEQ_1_2 => "00101010000", 

 

GT11_1000X_B : GT11  

... 

CLK_COR_SEQ_1_2 => "00101010000", 

 

To : 

GT11_1000X_A : GT11  

... 

CLK_COR_SEQ_1_2 => "00001010000", 

 

GT11_1000X_B : GT11  

... 

CLK_COR_SEQ_1_2 => "00001010000", 

 

.ucf file : 

Change: 

 

INST GT11_DUAL_1000X_inst/GT11_1000X_A CLK_COR_SEQ_1_2 = 00101010000; 

... 

INST GT11_DUAL_1000X_inst/GT11_1000X_B CLK_COR_SEQ_1_2 = 00101010000; 

 

To: 

 

INST GT11_DUAL_1000X_inst/GT11_1000X_A CLK_COR_SEQ_1_2 = 00001010000; 

... 

INST GT11_DUAL_1000X_inst/GT11_1000X_B CLK_COR_SEQ_1_2 = 00001010000;

AR# 21403
Date Created 09/04/2007
Last Updated 05/19/2014
Status Archive
Type General Article