UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 60204

LogiCORE IP Ethernet 1000BASE-X PCS/PMA or SGMII v14.2 - SGMII and 1588 - Updated XDC constraints needed to meet timing

描述

When using the Ethernet 1000BASE-X PCS/PMA or SGMII v14.2 IP with 1588 mode or SGMII with fabric elastic buffer, updates are needed to the XDC constraint to meet timing.

Note: 1588 mode is only selectable when using AXI Ethernet IPI core.

解决方案

a) When using SGMII or 1588 timestamping with the fabric elastic buffer, change:
set_max_delay -from [get_cells -hier -filter {name =~ *transceiver_inst/rx_elastic_buffer_inst/rd_addr_gray_reg[*]}] -to [get_pins -hier -filter { name =~ *reclock_rd_addrgray[*].sync_rd_addrgray/data_sync*/D}] 8 -datapath_only
set_max_delay -from [get_cells -hier -filter {name =~ *transceiver_inst/rx_elastic_buffer_inst/wr_addr_gray_reg[*]}] -to [get_pins -hier -filter { name =~ *reclock_wr_addrgray[*].sync_wr_addrgray/data_sync*/D}] 16 -datapath_only
to:
set_max_delay -from [get_cells -hier -filter {name =~  *transceiver_inst/rx_elastic_buffer_inst/rd_addr_*_reg[*]}] -to [get_pins -hier -filter { name =~ *reclock_rd_addrgray[*].sync_rd_addrgray/data_sync*/D}] 8 -datapath_only
set_max_delay -from [get_cells -hier -filter {name =~ *transceiver_inst/rx_elastic_buffer_inst/wr_addr_*_reg[*]}] -to [get_pins -hier -filter { name =~ *reclock_wr_addrgray[*].sync_wr_addrgray/data_sync*/D}] 16 -datapath_only
b) When using 1588 mode, change the following constraint:
set_false_path -to [get_cells -hier -filter {name =~  *gpcs_pma_inst/INCLUDE_1588_common.RXRECRESET_PIPE_reg}]
to
set_false_path -to [get_cells -hier -filter {name =~  *gpcs_pma_inst/INCLUDE_1588_common.RXRECRESET_PIPE*reg}]
This is scheduled to be fixed in the next release of the core in Vivado 2014.2.

链接问答记录

主要问答记录

Answer Number 问答标题 问题版本 已解决问题的版本
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
AR# 60204
日期 04/17/2014
状态 Active
Type 综合文章
IP
  • Ethernet 1000BASE-X PCS/PMA or SGMII
的页面