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AR# 39193 LogiCORE IP Ethernet 1000BASE-X PCS/PMA or SGMII v10.5 - GTP/GTX Physical DRC failure in MAP

Description


In ISE design tools 12.3 and later, implementation of the Ethernet 1000BASE-X PCS/PMA or SGMII example design might fail during MAP with an error similar to the following.
"ERROR:PhysDesignRules Block (GTP_DUAL_X0Y0)needs GTP_DUAL_X0Y1 instantiated: When using a GTP/GTX with a REFCLK sourcecoming from the IBUFDS element near another GTP/GTX, each GTP in between thesource and destination must be instantiated, have connected power supplies andhave its REFCLKPWRDNB pin asserted High - even though it isn't used in thedesign except to pass on the REFCLK."
For more information see:
(Xilinx Answer 39047) Virtex-5 GTX RocketIO - Instantiating an unused GTX to forward reference clocks
(Xilinx Answer 33473) Virtex-5 GTP RocketIO - Instantiating an unused GTP to forward reference clocks

Solution


For cases where this core has been integrated into your design, follow the instructions as described in the error message and linked Answer Records above. When implementing the example design, as provided by the CORE Generator tool, only Virtex-5 TXT devices are affected. In the example design UCF for TXT devices, the GTX_DUAL location can be changed from GTX_DUAL_X0Y3 to GTX_DUAL_X0Y1 to avoid this error:
INST "core_wrapper/rocketio/GTX_1000X/tile0_v5_gtxwizard_i/gtx_dual_i" LOC = "GTX_DUAL_X0Y3";

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
36674 LogiCORE IP Ethernet 1000BASE-X PCS/PMA or SGMII v10.5 - Release Notes and Known Issues for ISE Design Suite 12.2 N/A N/A

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
39047 Virtex-5 GTX RocketIO - Instantiating an unused GTX to forward reference clocks N/A N/A
33473 Virtex-5 GTP RocketIO - Instantiating an unused GTP to forward reference clocks N/A N/A

Actions

AR# 39193
Date Created 11/18/2010
Last Updated 12/15/2012
Status Active
Type General Article
Devices
  • Virtex-5 FXT
  • Virtex-5 LXT
  • Virtex-5 SXT
  • Virtex-5 TXT
IP
  • Ethernet 1000BASE-X PCS/PMA or SGMII
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