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ARM7TDMI单片机特征介绍及IC解密

    信达专业承接各种类型的IC解密项目合作,通过对每一款芯片解密技术手法的反复实验和多次对比验证,我们能为每一款IC芯片提供高效、可靠、极具竞争优势的解密方案。
    为方便客户在解密项目合作中对IC解密的难易程度、解密的技术实现、解密的报价等信息进行理解与沟通,方便解密工程师在解密过程中对芯片内部结构及加解密特征进行理解,从而选择最合适的解密方案,这里,我们以ARM7TDMI芯片解密为例,提供对ARM7TDMI芯片的主要功能特征介绍,供大家参考借鉴。

Features
32-bit RISC Architecture Two Instruction Sets:
 – ARM High-performance 32-bit Instruction Set
 – Thumb High-code-density 16-bit Instruction Set
Very Low Power Consumption: Industry-leader in MIPS/Watt
4G Bytes 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 Stage
8-, 16-, and 32-bit Data Types
Single Cycle 32x8 Hardware Multiplier:
 – Multiplication is Accelerated when Upper Bytes Are All Zero or One
On-chip JTAG Debug and In Circuit Emulation
Extensive Range of Third-party Application Development Tools
Description
   The ARM7TDMI embedded microcontroller core is a member of the Advanced RISC Machines (ARM) family of general purpose 32-bit microprocessors, which offer high performance and very lower power consumption. Its outstanding feature is the 16-bit Thumb subset of the most commonly used 32-bit instructions. These are expanded at run time with no degradation of system performance. This gives 16-bit code density (saving memory area and cost) coupled with 32-bit processor performance.
   The ARM architecture is based on Reduced Instruction Set Computer (RISC) principles, and the instruction set and related decode mechanism are much simpler than those of microprogrammed Complex Instruction Set Computers. This simplicity results in a high instruction throughput and impressive real-time interrupt response from a small and cost-effective chip.
   Pipelining is employed so that all parts of the processing and memory systems can operate continuously. Typically, while one instruction is being executed, its successor is being decoded, and a third instruction is being fetched from memory.
   The ARM memory interface has been designed to allow the performance potential to be realized without incurring high costs in the memory system. Speed-critical control signals are pipelined to allow system control functions to be implemented in standard low-power logic, and these control signals facilitate the exploitation of the fast local access modes offered by industry standard dynamic RAMs.
   The ARM memory interface is also ideally suited to interfacing, either on-chip or offchip, with Atmel's Flash memory blocks. These give the benefits of in-system programmability and security, reducing time-to-market and system cost.
   The ARM7TDMI core is supported by an extensive range of application development tools. These are fully described in the AT91Business Partners section of Atmels's Web site .

   基于ARM7TDMI单片机的以上特点,信达芯片解密中心能在短时间内为您完成ARM7TDMI芯片解密等冷偏门系列疑难IC解密服务。如果您有ARM7TDMI芯片解密或其他疑难芯片解密需求,欢迎来电来访咨询洽谈。

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