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AR# 5037

XC4000XLT: Should the Vtt Pins be prohibited when using an XLT part?


Keywords: xlt, prohibit, vtt, ucf

Urgency: Standard

General Description: Should the Vtt pins on XLT parts be "PROHIBITED"
from use by constraining them?


Absolutely. The UCF files supplied with the LogiCORE PCI32 4000
for XLT devices already use this constraint.
AR# 5037
Date Created 08/21/2007
Last Updated 09/13/2007
Status Archive
Type General Article