cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Highlighted
Visitor
Visitor
364 Views
Registered: ‎03-30-2020

Artix -7 VREF, MGTAVCC and MGTAVTT

Jump to solution

Hi

We are using Artix-7 family's XC7A200T-2FBG484I we will interfacing with LVDS, SPI, UART and GPIOs

VCC_IN & VCC_RAM is 1V

VCC_AUX is 1.8V

we are not using Bank 216 , GTP section in our design, so we don't power up MGTAVCC and MGTAVTT will it cause issue during power up ? if so what is the current consumption for these pins ?

Similarly on VREF pins? Are these pins required to be supplied with 1.25V in all banks ? 

Please share these details.

Tags (1)
0 Kudos
1 Solution

Accepted Solutions
Highlighted
Moderator
Moderator
327 Views
Registered: ‎07-23-2015

@Hemalatha  


we are not using Bank 216 , GTP section in our design, so we don't power up MGTAVCC and MGTAVTT will it cause issue during power up ? if so what is the current consumption for these pins ?


Refer to Table 5-4 from Page#223 of UG482 for connections of unused GTP's. 

Similarly on VREF pins? Are these pins required to be supplied with 1.25V in all banks ? 


VREF needs to be provided either Internally or Externally when VREF based IO standards are used in the Bank. If not used, they can be used as User IO. Refer to UG471 for more details. 

I would recommend you go over UG483 PCB guide and XMP277, 7Series Schematic Review Recommendations while designing your schematics. 

 

 

 

 

- 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

1 Reply
Highlighted
Moderator
Moderator
328 Views
Registered: ‎07-23-2015

@Hemalatha  


we are not using Bank 216 , GTP section in our design, so we don't power up MGTAVCC and MGTAVTT will it cause issue during power up ? if so what is the current consumption for these pins ?


Refer to Table 5-4 from Page#223 of UG482 for connections of unused GTP's. 

Similarly on VREF pins? Are these pins required to be supplied with 1.25V in all banks ? 


VREF needs to be provided either Internally or Externally when VREF based IO standards are used in the Bank. If not used, they can be used as User IO. Refer to UG471 for more details. 

I would recommend you go over UG483 PCB guide and XMP277, 7Series Schematic Review Recommendations while designing your schematics. 

 

 

 

 

- 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