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Observer tollinjose
Observer
1,754 Views
Registered: ‎07-18-2017

Working of IBUFDS

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I no longer require IBUFDS since signal are going to be inside fpga. How can i replace this? Is there any document where I can see timing diagram of IBUFDS? Or can somebody tell me what is the functional equivalent of IBUFDS.

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Moderator
Moderator
2,248 Views
Registered: ‎07-23-2015

Re: Working of IBUFDS

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@tollinjose 


i want to know logic value of output will be equivalent to which input pin I or IB?


Check Page#279 from UG953  for the Logic Table. Its applicable to all IBUFDS across families. 

- Giri
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Keep conversing, give Kudos and Accept Solution when you get one.
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Community Manager
Community Manager
1,626 Views
Registered: ‎08-08-2007

Re: Working of IBUFDS

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Sorry I dont understand the question, you no longer require an IBUFDS, because the signal you are inputting is a single ended signal versus a differential signal?

I don't have a timing diagram to share but it you do a test case with timing constraints (set_input_delay in Vivado or OFFSET_IN in ISE) you can see the delay through the IBUFDS it will merely be a delay. 

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Observer tollinjose
Observer
1,602 Views
Registered: ‎07-18-2017

Re: Working of IBUFDS

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i want to know logic value of output will be equivalent to which input pin I or IB?

0 Kudos
Moderator
Moderator
2,249 Views
Registered: ‎07-23-2015

Re: Working of IBUFDS

Jump to solution

@tollinjose 


i want to know logic value of output will be equivalent to which input pin I or IB?


Check Page#279 from UG953  for the Logic Table. Its applicable to all IBUFDS across families. 

- Giri
--------------------------------------------------------------------------------------------------------------------
There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered.
Keep conversing, give Kudos and Accept Solution when you get one.
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

Contributor
Contributor
458 Views
Registered: ‎11-09-2018

Re: Working of IBUFDS

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for differential clock signal IBUFDS is okay  and For differential data's (data_p[15:0] and data_n[15:0]) How to use Buffer? How to get data from differential signal? I attached file simulaiton result using IBUFDS for differential clock and data.

lvds_data_q1.JPG
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