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W79E8213R单片机解密

时间:2010-07-29 10:38:43

有关W79E8213R解密,他的一些基本的特征需要我们去了解。在单片机解密、IC解密过程中,不同的技术手法可能产生的解密解密就不同,而解密手法的选择除了考虑解密者本身的技术经验外,还应该对需解密的单片机有一定的了解。
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以下是我们对W79E8213R芯片的简单介绍供各位参考:
 
The W79E8213 series are an 8-bit 4T-8051 microcontroller which has Flash EPROM which is programmable by ICP (In Circuit Program) or by hardware writer. The instruction set of the W79E8213 series are fully compatible with the standard 8052. The W79E8213 series contain a 4K bytes of main Flash EPROM; a 128 bytes of RAM; two 16-bit timer/counters; 4-channel 10-bit PWM; 3 edge detector inputs; 8-channel multiplexed 10-bit A/D convert. The W79E8213 series supports 128 bytes NVM Data Flash EPROM. These peripherals are supported by 10 sources four-level interrupt capability. To facilitate programming and verification, the Flash EPROM inside the W79E8213 series allow the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security.
 
Fully static design 8-bit 4T-8051 CMOS microcontroller:
- VDD = 4.5V to 5.5V @20MHz
- VDD = 2.7V to 5.5V @12MHz
- VDD = 2.4V to 5.5V @4MHz
Instruction-set compatible with MSC-51.
Flexible CPU clock source configurable by config bit and software:
- High speed external oscillator: upto 20MHz Crystal and resonator (enabled by config bit).
- Internal RC oscillator: 20/10MHz selectable by config bit, only W79E8213R supports¡Ó2% accuracy internal RC oscillator at fixed voltage and temperature condition.
4K bytes of AP Flash EPROM, with ICP and external writer programmable mode.
128 bytes of on-chip RAM.
W79E8213 series supports 128 bytes NVM Data Flash EPROM for customer data   storage used and 10K writer cycles.
- 8 pages. Page size is 16 bytes.
Two 16-bit timer/counters.
Ten interrupts source with four levels of priority.
Three-edge detect interrupt inputs.
Programmable Watchdog Timer.
Four-channel 10-bit PWM (Pulse Width Modulator).
Internal square wave generator for buzzer.
Up to 18 I/O pins.
The 4 outputs mode and TTL/Schmitt trigger selectable Port.
LED drive capability (20mA) on all port pins. Sink 20mA; Drive: -15~-20mA @push-pull mode.
Eight high sink capability (40mA) port pins. 
Eight-channel multiplexed with 10-bits A/D convert.
Low Voltage Detect interrupt and reset.
Development Tools:
- ICP(In Circuit Programming) writer
 
 
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