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Resource Property comb equation

Altera_Forum
Honored Contributor II
‎04-20-2016 08:24 AM
1,277 Views

I was just looking deeper into a part of my design. I can't work out how Quartus is deriving the Combout Equation for this  

Labcell. See my picture. 

 

The Equation says ( F & ( B ) )# ( !F ) which from my understanding says F AND B OR NOT F 

 

From following the drawing, !Data F is used as the select for the mux. The input to the mux is  

always B. It would seem that no matter what logic sense F was, the output would always  

be B. 

 

Can anyone shed any light on what Quartus is up to this time? 

 

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