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Elektronik & Data › Artikler › Interface til NFC microcontrollere

Infineon Technologies offers an open and high-performance interface for the company's Near Field Communication (NFC) security microcontrollers. The DCLB (Digital Contact Less Bridge) interface comprehensively addresses future NFC requirements in terms of flexibility, speed and security.

The DCLB interface is freely available and usable as a globally open solution for all NFC modem, Secure Element and handset manufacturers. As a leading supplier of security microcontrollers for NFC applications, Infineon cooperates for this purpose with the world's largest suppliers of NFC modems.

DCLB-based implementations are by now in high-volume deployment. Leading modem suppliers are already working on further implementations of the DCLB interface. The first NFC mobile phone benefiting from an Infineon embedded Secure Element (eSE) with DCLB interface has been on the market since August 2011.

The

DCLB interface is an open solution offering an optimized connection between the eSE and the NFC modem. By dispensing with the temporary storage of data packets in the NFC modem, the data can be transferred directly from the terminal to the Secure Element without creating additional protocol overheads. Peak data transfer rates - essential for numerous NFC applications such as payment transactions - are achieved in this process.

Infineon's DCLB interface is currently one of the fastest NFC interfaces on the market, supporting the maximum defined data transfer rate of up to 848 kilobits/second (kB/s). Mainstream interfaces support only 106 kB/s. With Infineon's DCLB interface, an almost eight-fold volume of data can be transferred in the same time.

- Infineon's offerings make NFC secure, convenient and fast. We establish the technological basis for consumers' confidence in secure mobile payment, says Dr. Helmut Gassel, President of the Chip Card & Security Division at Infineon Technologies AG.

- With innovative solutions such as the globally open and freely available DCLB interface, Infineon strongly contributes to bringing NFC to the mass market.

Infineon's eSE security microcontrollers with DCLB interface are innovative. They support JavaCard and GlobalPlatform and are CIPURSE and Mifare compliant. Furthermore, they support the most widely used encryption methods such as RSA, ECC, 3DES and AES. At the same time, the optimized DCLB interface is easy to implement and offers more flexibility by supporting the ISO 14443-A, ISO 14443-B, ISO 14443-C and ISO 15693 (Passive Mode) protocols.