Molecular Biology of the Gene, 5/E---Watson et al. (2004) Part I: Chemistry and genetics Part l: Maintenance of the Genome Part I: Expression of the Genome Part IV: Regulation Part v: Methods

教学内容： 1．芯片引脚定义、内部结构 2．I/O口（P0、P1、P2、P3）的结构与功能 3．存储器系统 4．MCS-51外部存储器连接 5．MCS-51外部存储器连接 6．复位电路、运行方式 2.1 内部结构和引脚功能 2.2 输入/输出(I/O)口 2.3 存储器系统 2.4 MCS-51外部存储器的连接 2.5 操作时序 2.6 复位及复位电路 2.7 节电运行状态和掉电运行状态

6.1概述 6.2I/O软件的组成 6.3I/O硬件特点 6.4有关技术 6.5设备处理 6.6典型外部设备

MCS-51系列单片机共有四个并行I/O口,分别是Po、P1 P2和P3。其中P口一般作地址线的低八位和数据线使用;P2口 作地址线的高八位使用;P3是一个双功能口,其第二功能是一 些很重要的控制信号,所以P3一般使用其第二功能。这样供用 户使用的IO口就只剩下P口了。另外,这些口没有状态寄 存和命令寄存的功能,因此难以满足复杂的IO操作要求

Chapter I Entry 第一条外国人入境,应当向中国的外交代表机关、领事机关或者外交部授权的其他驻外机关 申请办理签证。 Article I For entry to China, aliens shall apply for visas to Chinese diplomatic missions, consular posts or other foreign-based agencies authorized by the Foreign Affairs of the People's Republic of China

1.证明以下各式 (1). AUB=(AB). (2).,-UB, =UN(A,-B,) i=l j= i=l j= (3).An(, )=U(,)

Interest-Rate Differentials Country risk&ex -rate- expectations Country risk Political upheaval default on loan repayments higher i-rate to compensate Ex-rate expectations expect RMB to appreciate loans in RMB can pay a lower i-rate

第一部分 日常用语: Daily English I:问候、介绍、告别( Greetings、 introductions and farewells) 1、i' 'm fitterelectrician、per).钳工、电工、管子工 2、 He is an inspector(QC).检验员

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The primary concern of chilled food manufacturers is to produce a product that is both wholesome, i.e. it has all the fresh, quality attributes associated with a chilled food, and safe, i.e. free from pathogenic microorganisms and chemical and foreign body contamination. This is particularly important in this product ector as, due to the nature and method of production, many chilled foods are classified as high-risk products