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SLE66CL81P-MCC8 데이터시트(PDF) 9 Page - Infineon Technologies AG |
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SLE66CL81P-MCC8 데이터시트(HTML) 9 Page - Infineon Technologies AG |
9 / 10 page µµ SLE 66CL81P Short Product Information 9 / 10 2004-04-01 Timers ease the implementation of advanced communication protocols such as T=CL (according to ISO/IEC 14443-4) and all other time critical processes for contactless communications. Both Timers features auto-reload mechanisms as well as their own dedicated interrupt vectors. Additional interrupts capability of the RF interface module allows real time operation of the pure contactless smart card with the contactless terminals. SLE 66CL81P is able to communicate with any Proximity Card Device (PCD) defined in ISO/IEC 14443 such as the Infineon Evaluation Kit Proximity over a typical coupling distance of 10 cm. The power supply and data are received by an antenna, which consists of a coil with a few turns directly connected to the IC. DES acceleration by a factor of more than 500 compared to software solutions in combination with the high data transfer rate up to 848Kbit/s keep the transaction times short. For more independence and flexibility, the controller offers the two modulation type A and type B according ISO/IEC 14443. The Anticollision and Contactless Transmission Protocol are supported by open source application notes for both Type A and B in order to offer a maximum flexibility to the Operating System. Both Contactless Communication protocol may be implemented in the Operating System while the final selection of the Type A or B is based upon the personalisation data of the contactless smart card. The communication type can also be changed during runtime in the field. Thus, SLE 66CL81P ensures a simplified handling of the ROM mask, high reactivity by a tailored personalisation during production of the contactless smart card in order to answer to the increasing market demand and applications. SLE 66CL81P features a new Resource Management System (RMS_E) which optimizes Contactless EEPROM write/erase routines. EEPROM programming is enhanced over the entire communication distance compared to the standard RMS. Thus, the reduction of programming times and power consumption is ensured independently of the use of the contact or the contactless interface. The CRC module allows the easy generation of checksums according to ISO/IEC 3309 (16-Bit- CRC), thus it supports the two different CRC calculation required for ISO/IEC 14443 Type A and Type B. Also, data as well as program located in the EEPROM can be extra-secured by a CRC checksum enabling the Operating System to detect errors while downloading new application in the field. To minimize the overall power consumption, the contactless security controller can be set into sleep mode. The certified random number generator (RNG) is able to supply the CPU with true random numbers on all conditions. It allows creating session key used for authentication in open networks and enable secure downloading of new applications. The DDES-EC2 accelerator consists of two modules. The DDES module supports symmetrical crypto algorithms according to the Data Encryption Standard in the Electronic Code Book Mode. It features two internal registers for storage of the two keys required for a Triple DES computation. Together with the fast contactless interface, it offers high security and high speed for contactless smart card applications. The EC2 module accelerates the multiplication in GF (2n) and therefore the operations for elliptic curve cryptography. It widens the field of application for SLE 66CL81P since it can be used as tamper-resistant security tool for secured and authentic communication in open networks and can be used in contactless operation. As an important feature, SLE 66CL81P provides a new and enhanced level of on-chip security, which fulfils the strong security requirements of a Common Criteria evaluation at an EAL5 level. Each security measure is designed to act as an integral part of the complete system in order to strengthen the system as a whole. |
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