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# 22018

Embedded Tri-mode Ethernet MAC Wrapper v3.1 - IDELAYCTRL logic is incorrectly reset for RGMII interfaces

Description

General Description:

When using the Embedded Tri-mode Ethernet MAC Wrapper v3.1 with the RGMII interfaces, the reset of the IDELAYCTRL module is incorrectly tied to ground. According to the Virtex-4 User Guide, the IDELAYCTRL must be reset after configuration.

Solution

A patch is available which correctly resets the IDELAYCTRL following configuration. 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# 22018
Date Created 09/04/2007
Last Updated 12/15/2012
Status Active
Type General Article