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S3F84NB单片机解密实例分析

   长期针对业内的各种疑难芯片或单片机解密技术进行集中攻关,已率先突破业内数十种单片机解密难题,是目前国内最权威的芯片解密单片机解密技术研究机构。  

S3F84NB Features

      CPU

      - SAM8RC CPU core

      Memory

      - Program memory:

      - 64-Kbyte Internal Flash Memory

      - Sector size: 128Bytes

      - 10years data retention

      - Fast Programming Time: Sector Erase: 10ms

      Byte Program: 32us

      - Byte Programmable

      - User programmable by 'LDC' instruction

      - Sector (128-bytes) Erase available

      - External serial programming support

      - Endurance: 10,000 Erase/Program cycles

      - Expandable OBPTM (On Board Program)

      - Data memory: 2064-byte general purpose RAM

      Oscillation Sources.

      - Crystal, or ceramic for main clock

      - Crystal for sub clock (32.768 kHz)

      Instruction Set

      - 78 instructions.

      - IDLE and STOP instructions added for powerdown modes

      Instruction Execution Time

      - 400 ns at 10-MHz fOSC (minimum)

      Interrupts

      - 29 interrupt sources with 29 vectors/8 levels.

      - Fast interrupt processing feature

      I/O Ports

      - Total 56 bit-programmable pins.

      8-Bit Basic Timer

      - One programmable 8-bit basic timer for oscillation stabilization control

      - Watchdog timer function

      Timers

      - 8-bit timer/counter (Timer A) with three operating modes; Interval mode, capture mode and PWM mode

      - 8-bit timer/counter (Timer B) could also be used as a carrier frequency or PWM generator.

      - 8-bit timer/counter (timer C (0,1)) with two operating modes; interval mode and PWM mode

      - 16-bit timer/counter (Timer 1(0,1)) with three operating modes; Interval mode, Capture mode, and PWM mode

      Watch timer

      - Interval Time: 3.19ms, 0.25s, 0.5s, 1.0s at 32.768 kHz

      - 0.5/1/2/4 kHz buzzer output selectable

      A/D Converter

      - Eight-analog input channels

      - 10-bit conversion resolution

      - 20us conversion speed at 10MHz clock.

      Asynchronous UART

      - Programmable baud rate generator

      - Supports serial data transmit/receive operations with 8-bit, 9-bit in UART module

      Synchronous SIO

      - 8-bit transmit/receive mode

      - 8-bit receive mode

      - Selectable baud rate or external clock source

      Pattern Generation Module

      - Pattern generation module triggered by timer match signal and Software.

      Built-in RESET circuit (LVR)

      - Low-Voltage detector for safe reset

      Operating Temperature Range

      - -40°C to + 85°C

      Operating Voltage Range

      - 2.0 V to 5.5 V @ 1-4MHz (LVR disabled)

      - LVR to 5.5 V @ 1-4MHz (LVR enabled)

      - 3.0 to 5.5 V @ 1-10MHz

      Package Type

      - 64 pin QFP, 64 pin SDIP