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what are the differences among three type of output pin reserve?

Altera_Forum
Honored Contributor II
‎06-11-2010 01:59 AM
1,038 Views

Hi, 

I was confused by the three type of output pin reserve value. 

 

"AS OUTPUT DRIVING AN UNSPECIFIED SIGNAL" 

"AS OUTPUT DRIVING GROUND" 

"AS SIGNALPROBE OUTPUT" 

 

what do these values mean? 

 

thanks.
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