It is easy to integrate the smart card library with the existing applications.The smart card library uses UART and 4 I/O port pins.
The pins used for the communication b/w the smart card & PIC microcontroller are given in Configuring the Library section.“sc_config.h” is the only file where the user has to modify to port the smart card stack to different PIC microcontrollers.
The API's that needs to be called by the main application are mentioned in SClib.h file.Please refer "How the Library Works" to know the usage of smart card library API's.