Fpga nios ii

Hi, i am looking for a .pdf file that describes LimeSDR usb NIOS system description.
I downloaded it 2 years ago but ereased it in a bad luck.

Maybe this ?

Thanks for trying. But this does not contain the document explaining the Nios cpu. It only contains a document explaining logical blocks but nothing about nios implementation. In the past there was a document describing internals of nios implementation of the LimeSdr USB.