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AR# 30965

LogiCORE 10-Gigabit Ethernet MAC v8.5 - Release Notes and Known Issues for ISE 10.1 IP Update 2 (IP_10.1.2)

Description

This Answer Record contains the Release Notes for the LogiCORE 10-Gigabit Ethernet MAC v8.5 Core which was released in ISE 10.1 IP Update 2, and contains the following information: 

 

- 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: http://www.xilinx.com/support/documentation/user_guides/xtp025.pdf.

Solution

New Features 

-In-band FCS mode can be enabled with WAN mode. 

 

Bug Fixes 

 

- WAN mode disabled when In-band FCS mode is enabled. 

- Incorrect IFG length can be seen when using WAN mode. In WAN mode over time with certain sized packets, the overall IFG length can be slightly larger or smaller than described in the specification. This is not an issue when operating in LAN mode. 

- Transmitted IFG contains extra bytes for certain frame sizes with In-band FCS passing enabled. For more information, see (Xilinx Answer 30649)

- After going full, RX FIFO stays full. For more information and a work-around, see (Xilinx Answer 30187)

 

Known Issues  

- WAN mode not supported for Virtex-II Pro devices. 

- In 10.1sp2, timing errors have been experienced in some Virtex-4 and Virtex II Pro Implementations. 

For Virtex-4: to resolve these errors, try removing the -timing switch from MAP. 

For Virtex II Pro: to resolve these errors, try turning on MPPR (Multi Pass Place and Route). 

- In 10.1 SimPrim Post PAR timing simulation, the simulation does not always work as expected. For more information, see (Xilinx Answer 30815).

AR# 30965
Date Created 06/18/2008
Last Updated 05/22/2014
Status Archive
Type General Article