Understanding the Mobile World

The intertwining of telecom, banking, and M2M/IoT produces a new degree of complexity. We hope our COMPRION glossary helps you to get a good overview of all the connected terms, technologies, and concepts.


Specification for a single-wire connection between the SIM card and an NFC chip in a cell phone. SWP is an interface between CLF and UICC. It is a contact-based protocol that is used for contactless communication. C6 pin of UICC is connected to CLF for SWP support. It is a bit-oriented full-duplex protocol which means that simultaneous transmission and reception are possible. CLF acts as a master and UICC as a slave. CLF provides the UICC with energy, a transmission clock, data, and signal for bus management. The data to be transmitted is represented by the binary states of voltage and current on the single wire.


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