By default, the Ethernet 1000BASE-X PCS/PMA or SGMII and QSGMII cores use 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 Design Advisory for 7 Series FPGA GTX Transceiver - RXDFEXYDEN Port Update in DFE Mode (Xilinx Answer 58244).
In <core_name>_GTWIZARD_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 cores.
Revision History
11/22/2013 - Initial release
| Answer Number | 问答标题 | 问题版本 | 已解决问题的版本 |
|---|---|---|---|
| 47524 | LogiCORE IP Ethernet 1000BASE-X PCS/PMA or SGMII - Release Notes and Known Issues for v11.x | N/A | N/A |
| 54667 | LogiCORE IP 1G/2.5G Ethernet PCS/PMA or SGMII - Release Notes and Known Issues for Vivado 2013.1 and newer tools | N/A | N/A |
| 54668 | LogiCORE IP QSGMII - Release Notes and Known Issues for Vivado 2013.1 and Forward | N/A | N/A |
| 45711 | LogiCORE IP QSGMII - Release Notes and Known Issues for 1.x | N/A | N/A |
| 58244 | 7 系列 FPGA GTX 收发器的设计咨询 - DFE 模式下的 RXDFEXYDEN 端口更新 | N/A | N/A |
| AR# 58460 | |
|---|---|
| 日期 | 08/05/2014 |
| 状态 | Active |
| Type | 综合文章 |
| IP | |