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AR# 16981

5.2i IBISWriter - IBISWriter has mapping error for Virtex-E I/O Standard


General Description: 

The ISE 5.2isp1 design implementation software refers to the LVCMOS 2.5V I/O standard for Virtex-E as "LVCMOS2". Because the associated IBIS model is called "LVCMOS25", IBISWriter erroneously reports that a buffer model is not available. For Virtex-E, the LVCMOS25 buffer model should map to the LVCMOS2 I/O standard.


This problem is fixed in the latest 5.2i Service Pack, available at: 

The first service pack containing the fix is 5.2i Service Pack 2.

AR# 16981
Date Created 09/03/2007
Last Updated 05/15/2014
Status Archive
Type General Article