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MTD502EG单片机解密成功案例

芯德斯经过多年的研究,对MTD502EG系列IC解密的算法、架构和工艺进行了深入的研究,精心设计的解密技术流程在确保解密芯片绝对安全的同时,也把芯片解密的周期降到最低,极大的保证了客户在解密过程中的工程控制和经济效益。以下我们针对此芯片的主要功能特性做简要介绍仅供各类芯片解密工程师与客户参考:
GENERAL DESCRIPTION
The MTD502E is a highly integrated, 10M/100M two port switch controller with build_in embedded memory. It supports 2 MII/RMII ports for 10M/100M operation, and  both  can  operate under half or full duplex mode.The MTD502E is an ideal solution for two port bridge or dual speed hub application,and no need any external memory buffers in application design.The flexible MII interface design can directly connect with pseudo MII interface (Am79c901, HomePNA PHY).The MTD502E provides packet forward-ing,address filtering, learning, and aging func-tion, and have an optional back_presure control implemented in half duplex mode.The MTD502E supports an effective address filtering database, which can recognize up to  2048 MAC addresses. It also support an automatical aging function for address  table updating (aging time is 300 secs default).
FEATURES
·IEEE802.3 and IEEE802.3u compliant.
·Single chip,low cost,two port switch controller.
·Build_in embedded memory on chip for packet buffering.
·Provide 2 MII/RMII (Reduced Media Indepen-dent Interface) ports.
·A flexible MII interface design can directly con-nect with standard MII or pseudo MII.
·Support half/full duplex operation per port.
·Optional back_pressure control for half_duplex mode.
·Provide "store and forward"switching, and for-warding rate at full_wire speed.
·Support up to 2048 MAC addresses filtering database, and  automatical address aging_out function (300 secs).
·Low power CMOS design, with single 3.3V supply voltage, 50 MHZ operation.
·Provide 128 pin PQFP package (MTD502EF), and 80 pin LQFP package (MTD502EG).
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