Where is the document of pin function?

[NuvKFC]

Could someone please tell me what is the function of and how to use following pins of the FPGA, as follows picture?

If there exists a document to explain it, could you please share the document?

Thank you very much.

[sstrell]

Every device family has a device handbook that goes into detail on the functions of the I/O.  Just search the documentation for your selected device.

Is there something here in particular you want to know about?

[NuvKFC]

Hi sstrell

    Thank you, strell, very much. Could you please give me a example or a link about Stratix device? I can't directly find the information like DIFF_n, other PLL, DIFF_OUT, Dedicated clock, and so on in the follows link. Sorry that I really don't know how to use those pins.

Link:

http://www.kontest.ru/datasheet/ALTERA/Stratix%20IV.pdf

[skyjuice]

The Pin Connection Guideline has the description on every pin in the device.

For Stratix IV: https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/stratix4/pcg-01005.pdf 

[NuvKFC]

Hi skyjuice

       Thank you, skyjuice, very much. I will study it step by step.