外文翻译-单片机的介绍

英 文 翻 译 系 别 专 业 班 级 学生姓名 学 号 指导教师 报告日期 1 CM is as of CU it in a by PU a is by a of PU on a in a on s is in on of of is 031, a a of 031 on is of a 16is 0 of a of 326CU 0 of 200s to 1 0 CM no in of a of is in as of a 2 is in so it up to In CM is s in of be as a a 1-2 in a CM in 0 CM in is C or of as it is a to a a to a of a / O a a of At to CU is to of as is of of is 0 do . a is is We so on . It is as a of It is an is is is a as C), 3 is be to in is to be to A if 0s 4 or 0s of be a CB if if 0s a of CM be a by As on so or is in to as so is of hy is is is no as a as as a A of if of Cs in of in of CU is in of to be so is in of a of if up to C, C, be of to to C. It of of do is to of as As a be a it is in t he It is in a it 4 a of as of to of in by as of or to in of is is be be in a or CM in 0th 70, of of CM of In of of of to of It CUs on of CU In as in of we at of of do 5 is an CU in is to on of oC of As IC oC of to of is to of of of C to of CU of of of is in 1. In CM a of of of be of 6 or as 2. In CU a of as of 3. be V, to 4. In of be in to a CU to be in 5. in of in of is as 6. In a of in to to be in a of of to If in is a to of to in by to 7 In to 7. in of in is as a In CU in a of of of an of 1. We a is by by in a is a is is it is a be be so to on a as if in of be a of 念 is of in if at a 0, a 1, is is so to be by to at to to s is as is of or in to be of to in of as he is 8 of is of of or a 0 1 In a of we a be by CU on of by is be be to a of is a of P0 P2 3 of on 0 P2 3 a of or a in he is do to R, RD AM or / O as a as a / O so as a A of be a 3.6 no of In as a / O is a as a / O to of a 3.7s CU to 3.7 a do so is to s in 051 in 000 , is 000 000 000 be in a 9 5. is a is to is no is a of to , a , a in P, a SP in on , of a SP on of . As P be so as of to of P, as P, # 5FH on 0H is of a to SP 7H, 08H to 8H 031 is in or to of is is s up a it as it as an 10 单片机介绍 单片机也被称为 微控制器 ，常用英文字母的缩写 示单片机，它最早是被用在工业控制领域。单片机由芯片内仅有 专用 处理器 发展而来。最早的设计理念是通过将大量外围设备和 成在一个芯片中，使计算机系统更小，更容易集成进复杂的而对体积要求严格的控制设备当中。 最早按照这种思想设计出的处理器，从此以后，单片机和专 用处理器的发展便分道扬镳。 早期的单片机都是 8 位或 4 位的。其中最成功的是 8031，因为简单可靠而性能不错获得了很大的好评。此后在 8031 上发展出了 于这一系统的单片机系统直到现在还在广泛使用。随着工业控制领域要求的提高，开始出现了 16 位单片机，但因为性价比不理想并未得到很广泛的应用。 90 年代后随着消费电子产品大发展，单片机技术得到了巨大提高。随着 列特别是后来的 列的广泛应用， 32 位单片机迅速取代 16 位单片机的高端地位，并且进入主流市场。而传 统的 8 位单片机的性能也得到了飞速提高，处理能力比起 80 年代提高了数百倍。目前，高端的 32 位单片机主频已经超过 300能直追 90年代中期的专用处理器，而普通的型号出厂价格跌落至 1 美元，最高端的型号也只有 10 美元。当代单片机系统已经不再只在裸机环境下开发和使用，大量专用的嵌入式操作系统被广泛应用在全系列的单片机上。而在作为掌上电脑和手机核心处理的高端单片机甚至可以直接使用专用的 作系统。 单片机比专用处理器更适合应用于 嵌入式系统 ，因此它得到了最多的应用。事实上单片机是世界上数量最多的 计算机 。现代人类生活中所用的几乎每件电子和机械产品中都会集成有单片机。手机、电话、 计算器 、家用电器、电子玩具、 掌上电脑 以及鼠标等电脑配件中都配有 1单片机。而个人电脑中也会有为数不少的单片机在工作。汽车上一般配备 40 多部单 11 片机，复杂的工业控制系统上甚至可能有数百台单片机在同时工作。单片机的数量不仅远超过 和其他计算的总和，甚至比人类的数量还要多。 单片机又称单片微控制器 ,它不是完成某一个逻辑功能的芯片 ,而是把一个计算机系统集成到一个芯片上。相当于一个微型的计算机，和计算机相比， 单片机只缺少了