Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Highlighted
Valued Contributor III
817 Views

Question regarding VCCIO of arria V SX series

Hi , 

 

I am planning to use 5ASXMB3G4F40I5N in my current project. 

I am using Bank 3A and 3C for 3.3V LVCMOS signals. 

so my question is can i use bank 3D for LVDS signals. 

 

if i can use it then what will be the VCCPD for group ( 3A,3B,3C,3D )? 

 

thanks and regards 

mahima satsangi
0 Kudos
5 Replies
Highlighted
Valued Contributor III
4 Views

Use Quartus to answer this question for you. Put a small project together for your chosen part. Constrain the I/O as you require, run it through the tools and look at the generated .pin file. It will tell you what to voltage to connect to the VCCPD pins. 

 

Cheers, 

Alex
0 Kudos
Highlighted
Valued Contributor III
4 Views

Alternatively, refer to the guidelines in the cyclone v handbook (https://www.altera.com/en_us/pdfs/literature/hb/cyclone-v/cv_5v2.pdf). They are very clear. See the "guideline: use the same vccpd for all i/o banks in a group" section on page 5-18. 

 

Cheers, 

Alex
0 Kudos
Highlighted
Valued Contributor III
4 Views

thanks for your reply. 

I will look into it.
0 Kudos
Highlighted
Valued Contributor III
4 Views

Hi, 

 

.pin file is not getting generated. I believe fitter is not generating that report due to following error. 

 

Error " Error (169215): VCCIO assignment (2.5V) on I/O Bank 3D cannot be applied 

Error (169325): VCCPD3 cannot use 2.5V because it is using 3.3V 

Info (169323): VCCIO 2.5V requires VCCPD 2.5V. 

 

I have made the following assignments: 

Bank VCCIO 

3A 3.3V 

3B 2.5V 

3C 3.3V 

3D 2.5V 

 

 

Thanks and regards 

Mahima Satsangi
0 Kudos
Highlighted
Valued Contributor III
4 Views

Hi, 

 

In the handbook, I hvn't found anything about using different VCCIOs within same group (3A,3B,3C,3D).
0 Kudos