AR# 15230

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Virtex-II SPICE Models - How should voltage node Vgg be varied to perform best and worst-case analysis?

Description

The Virtex-II SPICE models contain a voltage node called "VGG". What does this represent? What are its minimum and maximum values?

Solution

VGG represents internal memory; thus, this voltage node should not be modified by the user. Its value has no effect on the I/O data path, so it can be safely ignored when best and worst-case simulations are performed. 

 

For more information, please see (Xilinx Answer 6398).

AR# 15230
Date 05/14/2014
Status Archive
Type General Article
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