Features General • Based on the ARM® SC100™ SecurCore™ 32-bit RISC Processor • Two Instruction Sets • • • • • • • • • – ARM High-performance 32-bit Instruction Set – Thumb® High-code-density 16-bit Instruction Set 4-Gbyte Linear Address Space Von Neumann Load/Store Architecture – Single 32-bit Data Bus for Instructions and Data 3-stage Pipeline Architecture – Fetch, Decode and Execute Stages 8-bit, 16-bit, and 32-bit Data Types On-chip Programmable System Clock up to 50 MHz Very Low Power Consumption: – Industry Leader in MIPS/Watt – Low-power Idle and Power-down Modes Bond Pad Locations Conforming to ISO 7816-2 ESD Protection to ± 6000V Operating Ranges: 2.7V to 5.5V, GSM/3G Compliant, PC Industry Compatible, EMV Memory 32-bit Secure Microcontroller for Smart Cards AT91SC25672RC Summary • 256K Bytes of ROM Program Memory • 72K Bytes of EEPROM User Memory, Including 256 OTP Bytes – Typically More than 500,000 Write/Erase Cycles • 10K Bytes of RAM Peripherals • Two I/O Ports • • • • • • • • • • • – Configurable to Support Communication Protocols, Including ISO 7816-3 and 2-wire Protocols ISO 7816 Controller – Up to 625 kbps at 5 MHz Serial Peripheral Interface (SPI) Controller (up to 12 MHz) Two 16-bit Timers Random Number Generator (RNG) 2-level, 12-vector Interrupt Controller Hardware DES and Triple DES Checksum Accelerator CRC 16 / 32 Engine 32-bit Cryptographic Accelerator for Public Key Operations Including GF(2N) – RSA, DSA, ECC, Diffie-Hellman Advanced MPU High-performance Hardware Java Card Accelerator Security • • • • • Dedicated Hardware for Protection Against SPA/DPA Attacks Advanced Protection Against Physical Attack Environmental Protection Systems Voltage and Frequency Monitors Secure Memory Management/Access Protection Development Tools • Hardware Development Support on the ATV3-91SC Voyager Emulation Platform. See the ATV3-91SC Emulator Product Preview for Further Details. Rev. 1575CS–SMIC–09/03 Note: This is a summary document. A complete document is 1 available under NDA. For more information, please contact your local Atmel sales office. Description The AT91SC25672RC is a low-power, high-performance, 32-bit RISC microcontroller with ROM program memory, EEPROM data memory, and cryptographic accelerator, based on the new ARM SC100 advanced secure processor. The SC100 embedded core is the first member of the ARM SecurCore family. This general-purpose 32-bit processor offers high performance, very low power consumption, and additional features to help combat fraud. The AT91SC25672RC features 72K bytes of high-performance EEPROM (fast erase/write time, high endurance). This allows system developers to offer their customers a true 64K bytes EEPROM, while still being able to use the remaining 8K bytes for their own purposes (e.g. customization and patches). The cryptographic accelerator featured in the AT91SC series is the new AdvX™. It is based on a 32-bit multiplier-accumulator architecture which is designed to perform fast encryption and authentication functions. This enables fast computation and low-power operation. The AdvX, in conjunction with controlling firmware running within the SC100 core, supports standard finite fields arithmetic functions (including RSA, DSA, DH, ECC) and GF(2N). On top of the SC100´s MPU, a real hardware firewall can be used to increase the overall security level of the application without intense software development. Unique hardware features significantly accelerate the execution of Java Card Byte Code by removing the common software bottlenecks encountered during the implementation of a Java Virtual Machine. Additional security features include power and frequency protection logic, logical scrambling on program data and addresses, power analysis countermeasures and memory accesses controlled by a supervisor mode. Pin Configuration The AT91SC25672RC pinout conforms to the ISO 7816-2 interface. It also provides a second I/O port. GND Ground (reference voltage) VCC Power supply input I/O0 Input or output for serial data I/O1 Second input or output for serial data Also used as Slave Select line for the SPI controller MOSI SPI Master output – Slave input MISO SPI Master input – Slave output SCK SPI Clock CLK Clock signal input to internal clock operating circuit RST Reset signal input, a low state stops the ARM core Note: 2 By convention, the RST pin corresponds to the RST signal of the ISO 7816-3 Protocol. Both are active low. AT91SC25672RC 1575CS–SMIC–09/03 AT91SC25672RC Architectural Overview The SC100 is a 3-stage pipeline, 32-bit RISC processor. It uses a Von Neumann load/store architecture, which is characterized by a single data and address bus for instructions and data. The SC100 processor employs a unique architectural strategy known as Thumb®, a super-reduced instruction set that is ideally suited for high-volume applications with memory restrictions, and applications where code density is an important factor. Essentially, the SC100 processor has two instruction sets: • The standard ARM instruction set uses 32-bit instructions and offers maximum performance. • The Thumb instruction set uses 16-bit instructions and offers maximum code density. Both instruction sets operate on 8-bit, 16-bit, and 32-bit data types. The Thumb´s 16-bit instruction length allows it to achieve almost twice the density of standard ARM code, while retaining most of the ARM´s performance advantage over a traditional 16-bit processor using 16-bit registers. This is possible because the 16-bit Thumb instructions operate on the same 32-bit register set as the 32-bit ARM instructions. Thumb code can be up to 35% smaller than the equivalent ARM code, while providing 160% of the performance of an equivalent ARM processor connected to a 16bit memory system. Figure 1. Block Diagram 16 Java Accelerator 16 AdvX CryptoAccelerator OTP EEPROM User Memory ROM Program Memory RAM Thumb Instruction Decompressor Reset Circuit RST RNG DES/3DES 32 On-chip Security (SPA, DPA, ...) CRC and Checksum Accelerator SC100 Core 32 CLK GND VCC 32 Firewall + MPU MPU Secure Control 32 ISO 7816 Controller ISO 7816 I/O Port 0 I/O0 ISO 7816 I/O Port 1 I/O1 SPI Controller MOSI MISO SCK 32 Pipeline Timer 3 1575CS–SMIC–09/03 Atmel Headquarters Atmel Operations Corporate Headquarters Memory 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 487-2600 Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland TEL (41) 26-426-5555 FAX (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimhatsui East Kowloon Hong Kong TEL (852) 2721-9778 FAX (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan TEL (81) 3-3523-3551 FAX (81) 3-3523-7581 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany TEL (49) 71-31-67-0 FAX (49) 71-31-67-2340 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France TEL (33) 2-40-18-18-18 FAX (33) 2-40-18-19-60 ASIC/ASSP/Smart Cards 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 1(719) 576-3300 FAX 1(719) 540-1759 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France TEL (33) 4-76-58-30-00 FAX (33) 4-76-58-34-80 Zone Industrielle 13106 Rousset Cedex, France TEL (33) 4-42-53-60-00 FAX (33) 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 1(719) 576-3300 FAX 1(719) 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland TEL (44) 1355-803-000 FAX (44) 1355-242-743 e-mail [email protected] Web Site http://www.atmel.com © Atmel Corporation 2003. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. ATMEL ® is the registered trademark of Atmel; AdvX ™ is the trademark of Atmel. ARM ®, Thumb ®, and ARM Powered ® are the registered trademarks of ARM Ltd. SC100™ and SecurCore ™ are the trademarks of ARM Ltd. Other terms and product names may be the trademarks of others. Printed on recycled paper. 1575CS–SMIC–09/03 xM