I am trying to understand data format and how information is stored? Trying to read it by microcontroller.
I found many different formats, is their any good website explaining this the format and background communication protocol?

 

It's based on RFID technology,

https://en.m.wikipedia.org/wiki/Nea...contactless,and electronic ticket smart cards.

 

This is one protocol I found in NXP sheet.
But the data format exchange is not given, from where I can download this?