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龙芯世纪里程碑:AT89S58芯片解密

来源:芯片解密-龙芯世纪   时间:2010-10-22   阅读:1102

  龙芯世纪长期从事业界疑难芯片解密技术研究、芯片解密成本降低技术手法研究、芯片解密100%成功率技术研究、单机片软件解密技术研究等领域,特别是对芯片解密中的过错攻击技术、硬件安全分析、UV 攻击技术、EEPROM 和 Flash技术分析、安全保护位置的查找以及侵入式攻击与非侵入式攻击技术,均拥有透彻的理解和丰富的实战应用经验,龙芯世纪在芯片解密领域始终先人一步。
  AT89S58芯片是龙芯世纪新解密的一款,现将资料呈现如下:
  ? 80C52 Compatible
  - 8051 Instruction Compatible
  - Six 8-bit I/O Ports (64 Pins or 68 Pins Versions)
  - Four 8-bit I/O Ports (44 Pins Version)
  - Three 16-bit Timer/Counters
  - 256 Bytes Scratch Pad RAM
  - 9 Interrupt Sources with 4 Priority Levels
  ? Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply (AT89S64Only)
  ? ISP (In-System Programming) Using Standard VCC Power Supply
  ? 2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a DefaultSerial Loader
  ? High-speed Architecture
  - In Standard Mode: 40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)   60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
  - In X2 mode (6 Clocks/machine cycle)  20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)  30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
  ? 16K/32K/64K Bytes On-chip Flash Program/Data Memory
  - Byte and Page (128 Bytes) Erase and Write
  - 100k Write Cycles
  ? On-chip 1792 bytes Expanded RAM (XRAM) for AT89S64, 768 Bytes for AT89S54/58
  - Software Selectable Size (0, 256, 512, 768, 1024, 1792 Bytes)
  - 768 Bytes Selected at Reset for AT89S64
  - 256 Bytes Selected at Reset for AT89S54/58
  ? Dual Data Pointer
  ? Variable Length MOVX for Slow RAM/Peripherals
  ? Improved X2 Mode with Independent Selection for CPU and Each Peripheral
  ? 8-bit Clock Prescaler
  ? 16-bit Programmable Counter Array
  - High Speed Output
  - Compare/Capture
  - Pulse Width Modulator
  - Watchdog Timer Capabilities
  ? Asynchronous Port Reset
  ? Full-duplex Enhanced UART with Dedicated Internal Baud Rate Generator
  ? Low EMI (Inhibit ALE)
  ? Hardware Watchdog Timer (One-time Enabled with Reset-Out), Power-off Flag
  ? Power Control Modes: Idle Mode, Power-down Mode
  ? Single Range Power Supply: 2.7V to 5.5V
  ? Industrial Temperature Range (-40 to +85°C)
  ? Packages: PLCC44, PDIL40
  经过多次反复实验,龙芯世纪可以为每一款芯片提供最具经济价值、最具可靠性、最具成本控制优势的解密技术手法。有任意芯片解密需求者请直接与我们联系。