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Observer
Observer
3,483 Views
Registered: ‎03-20-2013

ARTIX-7: unused GTP

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Hello,

in our ARTIX-7 design we don't use the GTP-IF.

According the ug482 (page 228) the following pins of the GTP-IF have to be grounded:

1) MGTAVCC

2) MGTAVTT

3) MGTRXP/MGTRXN

4) MGTRREF

 

1) 2) and 4) are clear.

For 3) I'm not sure which of the MGTRXP/MGTRXN I have to ground:

=> all of the MGTPTRXP[0...3] and MGTPTRXN[0...3] ?

 

Thanks

Bodo

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Xilinx Employee
Xilinx Employee
4,334 Views
Registered: ‎08-02-2007

Re: ARTIX-7: unused GTP

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Bodo,

Yes, all MGTRXP/MGTRXN 0 through 3.

Regards,
Jon

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Xilinx Employee
Xilinx Employee
4,335 Views
Registered: ‎08-02-2007

Re: ARTIX-7: unused GTP

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Bodo,

Yes, all MGTRXP/MGTRXN 0 through 3.

Regards,
Jon

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Visitor
Visitor
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Registered: ‎11-07-2014

Re: ARTIX-7: unused GTP

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Hi,

I have similar non-used GTP due to design change, so should I ground ALL pins for GTP including MGTAVTT?

I am doing this spin to reduce power. so my A/D's  go from GTP >> LVDS and I don't want the GTP banks on A200T to be using power if not needed.

Patrick

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Observer
Observer
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Registered: ‎02-26-2014

Re: ARTIX-7: unused GTP

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Could you please verify that this is the case when NONE of the trasnceivers is used?

Thanks,

Panos

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Observer
Observer
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Registered: ‎02-26-2014

Re: ARTIX-7: unused GTP

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Could you please verify that this is the case when NONE of the trasnceivers is used?

Thanks,

Panos
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Visitor
Visitor
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Registered: ‎11-07-2014

Re: ARTIX-7: unused GTP

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I am not using any GTP pins on redesign and have followed Table 5-4 (attached) from ug482_7Series_GTP_Transceivers document - Patrick

Unused GTP on Artix.jpg
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Visitor
Visitor
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Registered: ‎11-07-2014

Re: ARTIX-7: unused GTP

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Hi Panos, One additional question, If GTP is not used (at all) can the Power to Bank 11 (MGTAVCC / and MGTAVTT) be removed as well?

See Attached Picture- Patrick

GTP POWER.jpg
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