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AR# 8259

2.1i VirtexE PAR - ERROR:Place:1670 - The IOB component <net> has an IO standard of LVDS which must be placed with locate constraints to specific IOB locations that support

Description

keywords : par, lvds, constraint, 1670

Urgency : standard

General Description : During a par session the following error will occur if you
attempt to place and route a design with an LVDS standard without
constraining the I/O to a specific site.

ERROR:Place:1670 - The IOB component <comp_name> has an IO
standard of LVDS which must be placed with locate constraints to
specific IOB locations that support this standard. Refer to the application
note for LVDS.

Solution

Location constraints should be assigned using the datasheet for the VirtexE.
There is a differential pin pair summary that can be used to choose the right
bank and pins to do this at :

http://support.xilinx.com/partinfo/ds022.pdf
AR# 8259
Date Created 08/31/2007
Last Updated 10/21/2008
Status Archive
Type General Article