Why NOT Arria 10 recommand OCT for Differential SSTL-18?

[Adams_Hu]

Hi 

In Arria 10 datasheet, Altera recommend internal OCT for differential SSTL-15 & differential SSTL-12 but differential SSTL-18?  It looks like LVDS bank supports the serial resistor on output and termination resistors on input.

[AqidAyman_Intel]

Hi,

Thank you for reaching out Intel FPGA Community.

From what I understand, for Differential SSTL-18 Class I and II, there is mentioned that it is recommended to use Differential SSTL I/O Standard Termination as the external termination scheme.

Regards.

[Adams_Hu]

Hi 

You mean I can also turn on OCT to compliant with Differential SSTL-18 Class I & II instead of external termination scheme?

Best Regards

[AqidAyman_Intel]

Hi,

May I know the configuration used such as I/O Standard and the OCT values? The information helps us to advice further.

Regards,

Aqid

[AqidAyman_Intel]

As we do not receive any response from you on the previous question/reply/answer that we have provided, please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.