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AR# 32205

LogiCORE Gigabit Ethernet MAC v8.5 - Release Notes and Known Issues for ISE 11.1


This Answer Record contains the Release Notes for the LogiCORE Gigabit Ethernet MAC v8.5 Core, which was released in the ISE 11.1 and includes the following:

- New Features

- Bug Fixes

- Known Issues

For installation instructions, general CORE Generator known issues, and design tools requirements, see the IP Release Notes Guide at:



New Features

- The Gigabit Ethernet MAC is being discontinued. It is being replace with the Tri-mode Ethernet Mac LogiCORE.

- ISE 11.1 software support

- The statistic vectors have been re-defined to be pin compatible with the Tri-Mode Ethernet MAC LogiCORE. This allows connection to the version 3.1 Ethernet Statistics core which now no longer has a 1-Gigabit Ethernet MAC connection option.

- Example Designs for the Virtex-4 family have been updated with new logic for the GMII and RGMII physical interfaces to improve input setup/hold timing margins. The new logic now uses DCMs.

Bug Fixes

- none

Known Issues


AR# 32205
Date Created 04/21/2009
Last Updated 12/15/2012
Status Active
Type General Article