mcs51單片機(jī)英文文獻(xiàn)及翻譯-全文預(yù)覽
【正文】 ） 5 個中斷（ 7）一個全雙工串行的I/UART（通用異步接收器 I 口 /發(fā) 送器（ UART）），它是實(shí)現(xiàn)單芯片電腦或單芯片計(jì)算機(jī)和計(jì)算機(jī)的串行通信使用。（ 2）片內(nèi)數(shù)據(jù)存 儲器 RAM（ 128B/256B） ,它只讀 /寫數(shù)據(jù)，如結(jié)果不在操作過程中，最終結(jié)果要顯示數(shù)據(jù)（ 3）程序存儲器ROM/EPROM(4KB/8KB).是用來保存程序一些初步的數(shù)據(jù)和切片的形式。這家公司在 1976 年推出后，引進(jìn) 8 位單芯片的MCS48系列計(jì)算機(jī)后于 1980年推出的 8位的 MCS51系列單芯片計(jì)算機(jī)。t have software that set up P3 mouth in advance .It hardware not inside is the automatic to have two function outputted when CPU carries on SFR and seeks the location to visit to P3 mouth/at not lasting lining, there are inside hardware latch Qs=1. The operation principle of P3 mouth is similar to P1 mouth. Output grade, P3 of mouth, P1 of P1, connect with inside have load resistance of drawing, every one of they can drive 4 Model LS TTL load to output. As while inputting the mouth, any TTL or NMOS circuit can drive P1 of 8051 onechip puters as P3 mouth in a normal way. Because draw resistance on output grade of them have, can open a way collector too or drainsource resistance is it urge to open a way, do not need to have the resistance of drawing outer. Mouths are all accurate twoway mouths too. When the conduct is input, must write the corresponding port latch with 1 first. As to 80C51 onechip puter, port can only offer milliampere of output electric currents, is it output mouth go when urging one ordinary basing of transistor to regard as, should contact a resistance among the port and transistor base, in order to the electricity while restraining the high level from exporting P1~P3 Being restored to the throne is the operation of initializing of an onechip puter. Its main function is to turn PC into 0000H initially, make the onechip puter begin to hold the conduct procedure from unit 0000H. Except that the ones that enter the system are initialized normally, as because procedure operate it make mistakes or operate there aren39。t answer and thinking. Here when the port is used as introduction, must write into 1 to the corresponding latch first too, make FET end relatively about 20,000 ohms because of load resistance in scene and because 40,000 ohms, will not exert an influence on the data that are input. The structure of P2 some mouth is similar to P0 mouth, there are MUX switches. Is it similar to mouth partly to urge, but mouth large a conversion controls some than mouth one multifunctional port, mouth getting many than P1 it have 3 doors and 4 buffers. Two parts there, make her besides accurate twoway function with P1 mouth just, can also use the second function of every pin, and door 3 functions one switch in fact, it determines to be to output data of latch to output second signal of function. Act as W=At 1 o39。 南 京 工 程 學(xué) 院 畢業(yè)設(shè)計(jì)文獻(xiàn)資料翻譯 （原文及譯文） 原文名稱： Structure and function of the MCS51 series 課題名稱： 基于單片機(jī)的交通燈控制系統(tǒng) 學(xué)生姓名： 吳茜茜 學(xué) 號： 240072310 指導(dǎo)老師： 宋 紅 梅 所在系部： 康尼學(xué)院 專業(yè)名稱： 通信工程 2020 年 3 月 南 京 Structure and function of the MCS51 series Structure and function of the MCS51 series onechip puter MCS51 is a name of a piece of onechip puter series which Intel Company produces. This pany introduced 8 topgrade onechip puters of MCS51 series in 1980 after introducing 8 onechip puters of MCS48 series in 1976. It belong to a lot of kinds this line of onechip puter the chips have, such as 8051, 8031, 8751, 80C
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