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AR# 54251

LogiCORE Tri-Mode Ethernet MAC - Release Notes and Known Issues for Vivado 2013.1 and newer tool versions


This answer record contains the Release Notes and Known Issues for the Tri-Mode Ethernet MAC Core and includes the following:

  • General Information
  • Known and Resolved Issues
  • Revision History

This Release Notes and Known Issues Answer Record is for the core generated in Vivado 2013.1 and newer tool versions.

Please reference XTP025 - IP Release Notes Guide for past known issue logs and ISE support information.

Tri-Mode Ethernet MAC Core IP Page:



General Information

Supported devices can be found in the following three locations:

For a list of new features and added device support for all versions, see the Change Log file available with the core in Vivado design tools.

Version Table

This table correlates the core version to the first Vivado design tools release version in which it was included.

Vivado Tools
v9.0 (Rev. 6) 2016.3
v9.0 (Rev. 5)2016.2
v9.0 (Rev.4)2016.1
v9.0 (Rev. 3)2015.4
v9.0 (Rev. 2)2015.3
v9.0 (Rev. 1)2015.2
v8.3 (Rev. 1)2014.4
v8.2 (Rev. 2)(Xilinx Answer 61328)
v8.2 (Rev. 1)2014.2
v7.0 (Rev. 1)(Xilinx Answer 57446)

General Guidance

The table below provides answer records for general guidance when using the LogiCORE Tri-Mode Ethernet MAC core.

Answer RecordTitle
(Xilinx Answer 38279)Ethernet IP Solution Center
(Xilinx Answer 55077)Ethernet IP Cores - Design Hierarchy in Vivado

Known and Resolved Issues

The following table provides known issues and resolved issues for the Tri-Mode Ethernet MAC core, starting with v6.0, initially released in the Vivado 2013.1 tool.

Note: The "Version Found" column lists the version the problem was first discovered.

The problem might also exist in earlier versions, but no specific testing has been performed to verify earlier versions.

Answer RecordTitleVersion FoundVersion Resolved
(Xilinx Answer 67273)Tri-Mode Ethernet MAC v9.0 (Rev.4) - 63-byte frames are not counted correctlyv9.0 (Rev. 4)See Answer Record
NAFixed bug in 1G Example Design Pattern Generator module, VHDL version, in which the output frames were of incorrect size.v9.0 (Rev.1)
v9.0 (Rev.4)
NAFixed corner case Statistics bug - RX Undersize Frames counter and RX Fragment Frames counter not incrementing correctly in absence of preamble bytesv9.0 (Rev.2
v9.0 (Rev.4)
NAFixed corner case bug in transmit logic - MAC might lose input frame bytes in cases where user initiates a back-to-back frame transfer and asserts error at very early stages of frame transmissionv9.0 (Rev.2
v9.0 (Rev.4)
NAFixed corner case bug in 2.5G transmit logic - MAC might not corrupt the TX frame if the user error indication is received at very early or very late stages of frame transmissionv9.0 (Rev.2)
v9.0 (Rev.4)
(Xilinx Answer 65947)LogiCORE Tri Mode Ethernet MAC v9.0 (Rev 3) - UltraScale Plus Devices - GMII/RGMII - Timing not met on I/O Interface v9.0See Answer Record
(Xilinx Answer 64242)Tri-Mode Ethernet MAC v9.0 - The core currently does not meet timing on 2.5G designs for -2L and -1LV devicesv9.0See Answer Record
(Xilinx Answer 63906)Tri-Mode Ethernet MAC v9.0 - TEMAC might stop working if only the 10/100 license is installed in Vivado 2015.1 v9.0See Answer Record
(Xilinx Answer 61328)MDIOREADY can go high before MDIO RX DATA updates v8.2v8.3
(Xilinx Answer 62021)Simulation - 'X' seen on AXI-Lite Bus strobesv8.2v8.3
(Xilinx Answer 60199)UltraScale Devices - Hold violations seen on RX interface v8.2Work-around in answer record
(Xilinx Answer 60198)UltraScale Devices - RGMII - Timing not met on IO interface v8.2Work-around in answer record
(Xilinx Answer 58041)IPI board connection automation only supported with KC705 and AC701 boards v8.0Work-around in answer record
(Xilinx Answer 57377)VHDL - update needed to provide unique file name if using multiple iterations of the core v7.0v7.0 (Rev 1)
(Xilinx Answer 57440)MII - update to XDC constraintsv7.0v7.0 (Rev 1)
(Xilinx Answer 56625)Configuration Vector - Updates need to xdc file and Verilog bus2ip_addr busv7.0v7.0 (Rev 1)
(Xilinx Answer 56267)Undersized frames less than 14 bytes cause Example Design TX FIFO pointers misalignment v4.5v8.0
(Xilinx Answer 55356)Full Duplex - Incorrect TX Statistics byte count seen for IFG Adjust less than 8v5.5v6.0
(Xilinx Answer 54785)IFG Adjust values smaller than 9 not used when core is generated with half duplex supportv5.5v6.0
(Xilinx Answer 55358)Write to AVB specific frame filter will also write to standard frame filterv5.5v6.0

Linked Answer Records

Child Answer Records

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
47695 LogiCORE IP Tri-Mode Ethernet MAC - Release Notes and Known Issues for All AXI Interface Versions N/A N/A
AR# 54251
Date Created 02/13/2013
Last Updated 10/13/2016
Status Active
Type Release Notes
  • Vivado Design Suite - 2013.1
  • Tri-Mode Ethernet MAC