How to get information about fpga input and output port from the FPGA?

While I will repeat "It's been well over a decade since I worked with Xilinx, Atmel and other devices but for this level of support" you would be checking with the designer of the code for this FPGA.

I should not have to expand what FPGA stands for but since it is programmable no one but the designer and those that understand THIS design can answer this question.

I understand and used FPGAs for years but as I am not on the team for the design that loads into this FPGA, I can only supply less than the tip of the iceberg of information.