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Explorer
Explorer
2,690 Views
Registered: ‎03-18-2008

GC Port(N side) can be used for two seperate global clock with P side simultaneous ?

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e.g:

 

P side is for global aclk

N side is for global bclk

 

the device part is virtex ultrascale+

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Teacher muzaffer
Teacher
4,781 Views
Registered: ‎03-31-2012

Re: GC Port(N side) can be used for two seperate global clock with P side simultaneous ?

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@m006 there is only one clock buffer in a p/n pair and it can be either a differential buffer or single ended one connected to the P side only. You still can use the N side as a regular IO.

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Guide avrumw
Guide
2,680 Views
Registered: ‎01-23-2009

Re: GC Port(N side) can be used for two seperate global clock with P side simultaneous ?

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No.

 

This is stated in the Clocking User Guide (UG572) at the beginning of Chapter 2 (v1.3, p.9):

 

"Single-ended clock inputs must be assigned to the P (master) side of the GC input pin pair.
If a single-ended clock is connected to the P-side of a differential clock pin pair, the N-side
cannot be used as another single-ended clock pin—it can only be used as a user I/O."

 

Avrum

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Teacher muzaffer
Teacher
4,782 Views
Registered: ‎03-31-2012

Re: GC Port(N side) can be used for two seperate global clock with P side simultaneous ?

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@m006 there is only one clock buffer in a p/n pair and it can be either a differential buffer or single ended one connected to the P side only. You still can use the N side as a regular IO.

- Please mark the Answer as "Accept as solution" if information provided is helpful.
Give Kudos to a post which you think is helpful and reply oriented.

View solution in original post