I see. This chip is somewhat more complex than the serial RFID reader I linked to.
I'm sorry but I don't have time to read and understand 109 pages of the PDF right now. I gather the chip interfaces with different card types, so you would need to choose exactly what you need to achieve and work that out from the datasheet. The example code may (or may not) help understand the datasheet.
I've been working on a L6470 motor driver chip, which has similar levels of complexity (or less, even) and it has taken me a few days of work (a week maybe) to work my way through all their registers and stuff.
If you ask a specific question, I'm sure that someone will try to help.