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AR# 11513

Virtex-E - I only count 164 general I/O pins in the Virtex 50E fg256 pin-out table, yet the data sheet states there are 176. What causes this discrepancy?

Description

The Virtex-E family data sheet specifies that the V50E fg256 contains 176 general I/O pins, yet my pin-out table only lists 164. Where are the extra pins?

Solution

The IO_VREF pins in the smaller devices are general I/O pins only; this brings the general I/O count to 176.

AR# 11513
Date Created 08/29/2007
Last Updated 05/14/2014
Status Archive
Type General Article