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W78E858单片机核心构架及IC解密研究

文章来源:www.voipdoor.net 作者:芯片解密 时间:2012年03月27日

  新锐科技采用国际上先进的IC解密专业检测设备及算法研究软件,可准确了解各类IC芯片及单片机核心架构和指令代码,可将芯片内程序代码完整导出,并可在已有代码的基础上进行反向解析与探讨,为掌握单片机新颖设计思路、进行产品可行性研究及竞争信息分析提供完整解决方案。

  下面我们将提供对华邦芯片W78E858内部复杂结构及芯片性能特征介绍,帮助技术工程师准确判断加密位和加密方式。

    W78E858概述

The W78E858 is an 8-bit microcontroller which has an in-system programmable Flash EPROM for firmware updating. The instruction set of the W78E858 is fully compatible with the standard 8052. The W78E858 contains a 32K bytes of main Flash EPROM and a 4K bytes of auxiliary Flash EPROM which allows the contents of the 32KB main Flash EPROM to be updated by the loader program located at the 4KB auxiliary Flash EPROM ROM; 768 bytes of on-chip RAM; 128 bytes of EEPROM, 8 extra power down wake-up through INT2 to INT9; 4 channel 8-bit PWM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit port P4; three 16-bit timer/counters where the TIMER2 with programmable clock output and 17-bit watchdog timer are built in this device; a serial port. These peripherals are supported by a eight sources two-level interrupt capability.

  W78E858特性

  ·Fully static design 8-bit CMOS micro-controller up to 40 MHz

  ·32K bytes of in-system programmable FLASH EPROM for Application Program (APROM)

  ·4K bytes of auxiliary FLASH EPROM for Loader Program (LDROM)

  ·Low standby current at full supply voltage

  ·256 + 512 bytes of on-chip RAM

  ·128 bytes on-chip EEPROM memory

  ·64K bytes program memory address space and 64K bytes data memory address space

  ·Four 8-bit bi-directional ports

  ·One 4-bit bi-directional port

  ·Extra interrupts INT2 to INT9 at PORT1

  ·Wake-up via external interrupts INT0 - INT9

  ·Three 16-bit timer/counters

  ·One full duplex serial port

  ·Fourteen-sources, two-level interrupt capability

  ·Programmable Timer2 clock output via P1.0

  ·17-bits watchdog timer

  ·Four channels 8-bit PWM

  ·Built-in power management

·Code protection

  相信以新锐科技多年的研发实力为后盾,将为您提供W78E858等高难度芯片解密服务,以及各种高难度烧断脚的IC解密,各种高难度CPLDFPGAASIC解密等。欢迎广大客户来电来访咨询洽谈业务!