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ST22L096 Folha de dados(PDF) 3 Page - STMicroelectronics |
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ST22L096 Folha de dados(HTML) 3 Page - STMicroelectronics |
3 / 7 page 3/7 ST22L032, L064, L096, L128 DESCRIPTION The ST22Lxxx is a member of the SmartJ™ plat- form using a 32-bit Reduced Instruction Set Com- puter (RISC) core to execute both Native RISC instructions and JavaCard™ 2.x Technology in- struction (byte codes) directly(See Figure 2. "SmartJ™ Platform EEPROM Architecture", on page 3). Direct JavaCard™ byte code execution provides high performance advantage over processors that emulate the JavaCard™ byte code instruction set. The product features a 24-bit wide linear address- ing capability and includes User ROM, User RAM, and User EEPROM. Memory and Peripheral accesses are controlled by a Memory Protection Unit that allows to imple- ment firewalls between applications. Memories are accessed via two different buses, allowing simultaneous accesses to code and data. Memory load and stores can be performed at byte, short (2-bytes), or word (4-bytes) granularity, with optional pointer auto increment. The ST22 core includes dedicated instructions to accelerate performances of the following algoriths: – DES and Triple DES – Modular Arithmetic on big numbers, – Characteristic two field arithmetic to support efficiently Elliptic Curves, – CRC 16-bit ISO 3309. The product has clock and power management, 2 User configurable Timers, a Central Interrupt Con- troller and a Random Number Generator. Figure 2. SmartJ™ Platform EEPROM Architecture POWER MANAGEMENT 32-bit RISC CORE CLOCK MANAGEMENT MPU RAM BUS 2 BUS 1 PERIPHERALS ISO 7816 ROM EEPROM |
Nº de peça semelhante - ST22L096 |
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Descrição semelhante - ST22L096 |
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