FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.

IO standard

ymiler
Employee
169 Views

Hi

I have differential (P/N)   wires in the top of the FPGA (input & output)

My question is  : How can I know which IO standard I should to define 

I found out a lot of options to define  :

Differential SSTL-18 Class I 50 100
Differential SSTL-18 Class II 25 100
Differential SSTL-15 Class I 50 100
Differential SSTL-15 Class II 25 100
Differential SSTL-15 34, 40 240
Differential SSTL-135 34, 40 240
Differential SSTL-15 Class I 50 100
Differential SSTL-15 Class II 25 100
Differential SSTL-125 34, 40 240
Differential SSTL-12 34, 40, 60, 120, 240 240
Differential POD12 34, 40, 48, 60 240
Differential 1.8 V HSTL Class I 50 100
Differential 1.8 V HSTL Class II 25 100
Differential 1.5 V HSTL Class I 50 100
Differential 1.5 V HSTL Class II 25 100
Differential 1.2 V HSTL Class I 50 100
Differential 1.2 V HSTL Class II 25 100
Differential HSUL-12

LVDS

Mini-LVDS

RSDS

 

Where can I find doc. that describe the differences between all the defintion and How  I choose 1 of them ?

 

The attach doc. doesn't explain when I need to choose each of them  :

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/stratix-10/ug-s10-gpio.p...

 

Do you have another doc . ?

Thanks 

 

Yishay

 

0 Kudos
2 Replies
AminT_Intel
Employee
149 Views

Hello,

 

These are the two documents that are mainly being used in designs:

1. GPIO User Guide: https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/stratix-10/ug-s10-gpio.p...

2. Device Datasheet: https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/stratix-10/s10_datasheet...

 

These documents do not explain in details when you have to use the information is enough to know what it does based on the specs given.

 

Thank you.

 

AminT_Intel
Employee
134 Views

We do not receive any response from you to the previous question/reply/answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.

Reply