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Explorer
Explorer
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Registered: ‎09-14-2018

OSERDESE3 vs OSERDESE2 TQ output

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Hello,

What is the difference (if any) between TQ generation in OSERDESE2 and OSERDESE3 (Kintex-7 vs. Kintex Ultrascale)?

ug571-ultrascale-selectio.pdf document shows two attributes OSERDES_D_BYPASS and OSERDES_T_BYPASS, but they are not mentioned in ug974-vivado-ultrascale-libraries document.

Thank you.

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Moderator
Moderator
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Registered: ‎08-08-2017

Hi @arotenst 

Yes there is no difference , both drives the tristate input of output/Inout buffer.

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Moderator
Moderator
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Registered: ‎08-08-2017

Hi @arotenst 

OSERDES_D_BYPASS and OSERDES_T_BYPASS attributes of OSERDESE3 are internal to the VIVADO and not to be used when you instantiate the OSERDESE3.

T input for the OSERDESE3 is to be driven from fabric, this is combinatorial tristate . OSERDESE2 for 7 series supports tristate serialization upto 4:1

 

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Explorer
Explorer
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Registered: ‎09-14-2018

Hello,

Thank you for the explanation. Actually, I asked about TQ output. Any difference between TQ generation in OSERDESE3  and OSERDESE2? My feeling is NO, but please confirm.

Thank you.

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Moderator
Moderator
273 Views
Registered: ‎08-08-2017

Hi @arotenst 

Yes there is no difference , both drives the tristate input of output/Inout buffer.

-------------------------------------------------------------------------------------------------------------------------------
Reply if you have any queries, give kudos and accept as solution
-------------------------------------------------------------------------------------------------------------------------------

View solution in original post

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Explorer
Explorer
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Registered: ‎09-14-2018

Thank you.

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