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AR# 58464

LogiCORE IP Aurora 8B10B v9.1 or earlier - Update to 7 Series GTX Transceiver Port RXDFEXYDEN


By default, Aurora 8B10B core uses DFE mode.

For DFE mode, it is recommended to update RXDFEXYDEN to '1'. This change enhances performance for medium and long reach applications with channel losses of 15 dB or higher at the Nyquist frequency.

For more information on this change, see (Xilinx Answer 58244) Design Advisory for 7 Series FPGA GTX Transceiver - RXDFEXYDEN port update in DFE mode .


In <core_name>_gt.v/vhd, the RXDFEXYDEN port should be changed from '0' to '1'.

This has been updated in the Vivado 2013.3 and later versions of the IP core.

Revision History
11/22/2013 - Initial release

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
58244 Design Advisory for 7 Series FPGA GTX Transceiver - RXDFEXYDEN Port Update in DFE Mode N/A N/A
AR# 58464
Date 11/22/2013
Status Active
Type General Article
  • Kintex-7
  • Virtex-7
  • Aurora 8B/10B
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