Monday, 26 September 2022, 2:02 AM
Site: Ugo Chirico's e-learning
Course: Ugo Chirico's e-learning (Ugo Chirico's e-learning platform)
Glossary: Main Glossary

Anticollision Loop

The Anticollision Loop is an algorithm used to start the ISO/IEC 14443 dialogue between a PCD and a PICC out of the total number of PICCs responding to a request command.


The APDU (Application Protocol Data Unit) is the communication unit between a Smart Card and a Smart Card reader standardised by ISO/IEC 7816 on the application level. This interaction occurs after establishment of the communication via Answer to Reset (ATR) and optional Protocol Type Selection.