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前言近几年来,随着大规模集成电路工艺技术的发展,微处理器正以异乎寻常的高速度发展起来。微处理器除了向16位、32位的高速大容量的方向发展外,另一个不容忽视的方面是8位以上的单片机。它依赖于高集成度的工艺技术,把中央处理器、存贮器、输入/输出及一些特殊功能的部件集成一体,在要求处理的数据量不大的场合,尤其是在过程控制中,可以充分发挥它的价格便宜,性能稳定,体积小等优越性。所以,
Preface In recent years, with the development of large scale integrated circuit process technology, microprocessors are being developed at an unusually high speed. In addition to the microprocessor 16-bit, 32-bit high-speed high-capacity direction, the other can not be ignored is the 8-bit microcontroller. It relies on the highly integrated process technology, the central processor, memory, input / output and some special features integrated components, in the case of small amount of data processing requirements, especially in process control, you can Give full play to its cheap, stable performance, small size and other advantages. and so,