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CY2210单片机解密研究

时间:2011-05-13 09:24:57

芯片解密过程中,解密工程师必须掌握对芯片内部结构及解密特征进行技术分析,因为只有充分了解芯片内部结构原理,工程师才能准确进行方案开发,确定最可靠、成功率最高的解密方案,最大限度确保解密项目的安全可靠。
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Features
·Mixed 2.5V and 3.3V Operation
·Compliant to Intel CK133 (CY2210-3) & CK133W
(CY2210-2) synthesizer and driver specification
·Multiple output clocks at different frequencies
—Four CPU clocks, up to 133 MHz
—Eight synchronous PCI clocks, 1 free-running
—Two CPU/2 clocks, at one-half the CPU frequency
—Four AGP clocks at 66 MHz
—Three synchronous APIC clocks, at 16.67 MHz
—One USB clock at 48 MHz
—Two reference clocks at 14.318 MHz
·Spread Spectrum clocking
—32.5-kHz modulation frequency @ 133 MHz
—33.1-kHz modulation frequency @ 100 MHz for CY2210-02/03
—33.4-kHz modulation frequency @ 100 MHz for CY2210-04
—EPROM programmable percentage of spreading.
Default is –0.6%, which is recommended by Intel
·Power-down features
·Three Select inputs
·Low-skew and low-jitter outputs
·OE and Test Mode support
·56-pin SSOP package

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