Virtex-6 Embedded Tri-mode Ethernet MAC Wrapper v1.2 - Error Place:1153 - A clock IOB / BUFGCTRL pair not placed at optimal site

AR#	33043	Search For Another Answer
Topic	IP-DS-Embedded Tri-Mode EMAC
Last Updated	06/25/2009
Status	Active

Description

Keywords: PAR, TEMAC, V6

When implementing the Virtex-6 Embedded Tri-mode Ethernet MAC Wrapper in 11.2, the following error has occasionally been seen:

ERROR:Place:1153 - A clock IOB / BUFGCTRL clock component pair have been found that are not placed at an optimal clock IOB / BUFGCTRL site pair.

Solution

This error message results from the placer not finding an optional location. This error can be resolved by LOCing the clock pin in the error message to a specific legal location. This issue will be resolved in 11.3.