AR# 31716 10.1 PlanAhead - DRC Error "IOs placed on prohibited sites" on pin AC5 in Virtex-5 with FF1136 package

Description
Solution

Keywords: MGT, GTP, GTX, Rocket IO, crosstalk

I receive an "IOs placed on prohibited sites" error when I run DRC check in PlanAhead after placing an I/O on pin AC5. According to the Virtex-5 FPGA RocketIO GTP Transceiver User Guide, AC5 is not a pin that would cause crosstalk. Is the user guide correct, or is PlanAhead's DRC check?

The user guide is correct; it is legal to place a signal on pin AC5.

This issue is fixed in the 11.2 release of PlanAhead.

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AR# 31716
Date Created	09/22/2008
Last Updated	06/30/2009
Status	Active
Type

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AR# 31716 10.1 PlanAhead - DRC Error "IOs placed on prohibited sites" on pin AC5 in Virtex-5 with FF1136 package

Description

Solution

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