DevelopSiDi - ManuFerHi/SiDi-FPGA GitHub Wiki
To develop in SiDi, you need the Altera Quartus software package, for Cyclone IV the free versions works are 13.1 and 17.1 you can download here:
https://www.intel.com/content/www/us/en/programmable/downloads/download-center.html
Download the SiDi pin usage.
https://github.com/ManuFerHi/SiDi-FPGA/blob/master/Hardware/InOuts%20SiDi.xlsx