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　　为方便解密工程师及客户对芯片内部结构及其加解密特征进行技术分析，这里，我们提供对MC68HC11P2芯片的主要功能特征介绍，解密详情请咨询
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　　The MC68HC11P2 8-bit microcomputer is a member of the M68HC11 family of HCMOS microcomputers. In addition to 32kbytes of ROM, the MC68HC11P2 contains 1kbyte of RAM and 640 bytes of EEPROM. With its advanced timer and communication features (including MI BUS(1)) the MC68HC11P2 is especially suitable for mobile communications and automotive applications.
　　The MC68HC711P2 is an EPROM version of the MC68HC11P2, with the User ROM replaced by a similar amount of EPROM. All references to the MC68HC11P2 apply equally to the MC68HC711P2, unless otherwise noted.
　　MC68HC11P2 Features
　　Low power, high performance M68HC11 CPU core, with 4MHz bus capability
　　Power saving PLL clock circuit, with automatic disable during WAIT mode
　　32kbytes of User ROM (MC68HC11P2); 32kbytes User EPROM (MC68HC711P2)
　　1kbyte of RAM
　　640 bytes of byte-erasable User EEPROM, with on-chip charge pump
　　Up to 50 general purpose I/O lines, plus up to 12 input-only lines
　　Non-multiplexed address and data buses, permitting direct access to the full 64k address map
　　16-bit timer with 3/4 input captures and 4/5 output compares;pulse accumulator and COP watchdog timer
　　Three 8- or 9-bit SCI subsystems, two with MI BUS?capability
　　SPI subsystem, with software selectable MSB/LSB first option
　　8-channel, 8-bit analog-to-digital (A/D) converter
　　Four 8-bit PWM timer channels (may be concatenated to form one, or two, 16-bit channels)
　　Available in 84-pin PLCC or 84-pin CERQUAD packages