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AR# 22018

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


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.


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 12/15/2012
Status Active
Type General Article
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