單片機(jī)畢業(yè)參考英文文獻(xiàn)及翻譯

1、Structure and function of the MCS-51 series Structure and function of the MCS-51 series one-chip computer MCS-51 is a name of a piece of one-chip computer series which Intel Company produces. This company introduced 8 top-grade one-chip computers of MCS-51 series in 1980 after introducing 8 one-chip

2、 computers of MCS-48 series in 1976. It belong to a lot of kinds this line of one-chip computer the chips have,such as 8051, 8031, 8751, 80C51BH, 80C31BH,etc., their basic composition, basic performance and instruction system are all the same. 8051 daily representatives- 51 serial one-chip computers

3、 .An one-chip computer system is made up of several following parts: ( 1 One microprocessor of 8 (CPU. ( 2 At slice data memory RAM (128B/256B,it use not depositting not can reading /data that write, such as result not middle of operation, final result and data wanted to show, etc. ( 3 Procedure mem

4、ory ROM/EPROM (4KB/8KB , is used to preserve the procedure , some initial data and form in slice. But does not take ROM/EPROM within some one-chip computers, such as 8031 , 8032, 80C ,etc. ( 4 Four 8 run side by side I/O interface P0 four P3, each mouth can use as introduction , may use as exporting

5、 too. ( 5 Two timer / counter, each timer / counter may set up and count in the way, used to count to the external incident, can set up into a timing way too, and can according to count or result of timing realize the control of the computer. ( 6 Five cut off cutting off the control system of the so

6、urce . ( 7 One all duplexing serial I/O mouth of UART (universal asynchronous receiver/transmitter (UART , is it realize one-chip computer or one-chip computer and serial communication of computer to use for. ( 8 Stretch oscillator and clock produce circuit, quartz crystal finely tune electric capac

7、ity need outer. Allow oscillation frequency as 12 megahertas now at most. Every the above-mentioned part was joined through the inside data bus .Among them, CPU is a core of the one-chip computer, it is the control of the computer and command centre, made up of such parts as arithmetic unit and cont

8、roller , etc. The arithmetic unit can carry on 8 persons of arithmetic operation and unit ALU of logic operation while including one, the 1 storing device temporarilies of 8, storing device 2 temporarily, 8's accumulation device ACC, register B and procedure state register PSW, etc. Person who a

9、ccumulate ACC count by 2 input ends entered of checking etc. temporarily as one operation often, come from person who store 1 operation is it is it make operation to go on to count temporarily , operation result and loopback ACC with another one. In addition, ACC is often regarded as the transfer st

10、ation of data transmission on 8051 inside . The same as general microprocessor, it is the busiest register. Help remembering thatagreeing with A expresses in the order. The controller includes the procedure counter , the order is depositted, the order decipher, the oscillator and timing circuit, etc

11、. The procedure counter is made up of counter of 8 for two, amounts to 16. It is a byte address counter of the procedure in fact, the content is the next IA that will carried out in PC. The content which changes it can change the direction that the procedure carries out . Shake the circuit in 8051 o

12、ne-chip computers, only need outer quartz crystal and frequency to finely tune the electric capacity, its frequency range is its 12MHZ of 1.2MHZ. This pulse signal, as 8051 basic beats of working, namely the minimum unit of time. 8051 is the same as other computers, the work in harmony under the con

13、trol of the basic beat, just like an orchestra according to the beat play that is commanded.There are ROM (procedure memory , can only read and RAM in 8051 slices (data memory, can is it can write two to read, they have each independent memory address space, dispose way to be the same with general m

14、emory of computer. Procedure 8051 memory and 8751 slice procedure memory capacity 4KB, address begin from 0000H, used for preserving the procedure and form constant. Data 8051- 8751 8031 of memory data memory 128B, address false 00FH, use for middle result to deposit operation, the data are stored t

15、emporarily and the data are buffered etc. In RAM of this 128B, there is unit of 32 byteses that can be appointed as the job register, this and general microprocessor is different, 8051 slice RAM and job register rank one formation the same to arrange the location. It is not very the same that the me

16、mory of MCS-51 series one-chip computer and general computer disposes the way in addition. General computer for first address space, ROM and RAM can arrange in different space within the range of this address at will, namely the addresses of ROM and RAM, with distributing different address space in

17、a formation. While visiting the memory, corresponding and only an address Memory unit, can ROM, it can be RAM too, and by visiting the order similarly. This kind of memory structure is called the structure of Princeton. 8051 memories are divided into procedure memory space and data memory space on t

18、he physics structure, there are four memory spaces in all: The procedure stores in one and data memory space outside data memory and one in procedure memory space and one outside one, the structure forms of this kind of procedure device and data memory separated form data memory, called Harvard stru

19、cture. But use the angle from users, 8051 memory address space is divided into three kinds: (1 In the slice, arrange blocks of FFFFH , 0000H of location , in unison outside the slice (use 16 addresses. (2 The data memory address space outside one of64KB, the address is arranged from 0000H 64KB FFFFH

20、 (with 16 addresses too to the location. (3 Data memory address space of 256B (use 8 addresses. Three above-mentioned memory space addresses overlap, for distinguishing and designing the order symbol of different data transmission in the instruction system of 8051: CPU visit slice, ROM order spend M

21、OVC , visit block RAM order uses MOVX outside the slice, RAM order uses MOV to visit in slice.8051 one-chip computer have four 8 walk abreast I/O port, call P0, P1, P2 and P3. Each port is 8 accurate two-way mouths, accounts for 32 pins altogether. Every one I/O line can be used as introduction and

22、exported independently. Each port includes a latch (namely special function register , one exports the driver and a introduction buffer . Make data can latch when outputting, data can buffer when making introduction , but four function of passway these self-same. Expand among the system of memory ou

23、tside having slice, four port these may serve as accurate two-way mouth of I/O in common use. Expand among the system of memory outside having slice, P2 mouth see high 8 address off; P0 mouth is a two-way bus, send the introduction of 8 low addresses and data / export in timesharingOutput grade , P3

24、 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 one-chip computers as P3 mouth in a normal way . Because draw resistance on output grade

25、of them have, can open a way collector too or drain-source resistance is it urge to open a way, do not need to have the resistance of drawing outerly . Mouths are all accurate two-way mouths too. When the conduct is input, must write the corresponding port latch with 1 first . As to 80C51 one-chip c

26、omputer, 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 P1P3 Be

27、ing restored to the throne is the operation of initializing of an one-chip computer. Its main function is to turn PC into 0000H initially , make the one-chip computer begin to hold the conduct procedure from unit 0000H. Except that the ones that enter the system are initialized normally,as because p

28、rocedure operate it make mistakes or operate there aren't mistake, in order to extricate oneself from a predicament , need to be pressed and restored to the throne the key restarting too. It is an input end which is restored to the throne the signal in 8051 China RST pin. Restore to the throne s

29、ignal high level effective , should sustain 24 shake cycle (namely 2 machine cycles the above itseffective times. If 6 of frequency of utilization brilliant to shake, restore to the throne signal duration should exceed 4 delicate to finish restoring to the throne and operating. Produce the logic pic

30、ture of circuit which is restored to the throne the signal: Restore to the throne the circuit and include two parts outside in the chip entirely. Outside that circuit produce to restore to the throne signal (RST hand over to Schmitt's trigger, restore to the throne circuit sample to output , Sch

31、mitt of trigger constantly in each S5P2 , machine of cycle in having one more , then just got and restored to the throne and operated the necessary signal insidly. Restore to the throne resistance of circuit generally, electric capacity parameter suitable for 6 brilliant to shake, can is it restore

32、to the throne signal high level duration greater than 2 machine cycles to guarantee. Being restored to the throne in the circuit is simple, its function is very important. Pieces of one-chip computer system could normal running,should first check it can restore to the throne not succeeding. Checking

33、 and can pop one's head and monitor the pin with the oscillograph tentatively, push and is restored to the throne the key, the wave form that observes and has enough range is exported (instantaneous, can also through is it restore to the throne circuit group holding value carry on the experiment

34、 to change.51系列單片機(jī)的功能和結(jié)構(gòu)結(jié)構(gòu)和功能的監(jiān)控監(jiān)-51系列之一-計算機(jī)芯片監(jiān)控監(jiān)-51名是一幅一個電腦晶片,英特爾公司生產(chǎn)系列. 這家公司推出8級一個計算機(jī)芯片監(jiān)控監(jiān)-51系列之后,于1980年8引入一個計算機(jī)芯片監(jiān)控監(jiān),于1976年48系列.。它屬于這一類型很多行一個芯片的電腦芯片都如8051、8031、8751、80c51bh,80c31bh等,其基本組成、性能和基本教學(xué)制度,都是一樣的. 8051每日代表-51系列之一-電腦晶片有一個芯片的計算機(jī)系統(tǒng)是由以下幾個方面: (118微處理器(CPU. (2在切片數(shù)據(jù)存儲羊(128B/256B,使用可以不讀書不數(shù)據(jù)寫如因經(jīng)營不

35、中,最后結(jié)果要和數(shù)據(jù)顯示等. (3存儲器存儲程序/可擦寫可編程只讀存儲器(4KB/8KB,用于保存程序和數(shù)據(jù),初步形成片. 但并不存儲器/可擦寫可編程只讀存儲器在一些人的電腦芯片,如8031、8032、80c等. (4經(jīng)營的84并肩一/四OP0P3接口,每口可以用作介紹,也可以用作輸出. (5兩個定時/柜臺,每個計時器/柜臺可設(shè)立和計算的方法,用來計算的外部事件,可以建立成一個時間的方式也可以和根據(jù)計算結(jié)果或時間實現(xiàn)控制的計算(六五切斷切斷源頭上控制系統(tǒng). (七各一序I/O口UART(異步接收世界/發(fā)送(UART,它是實現(xiàn)一個計算機(jī)芯片和一個計算機(jī)芯片和通訊系列電腦上使用. (8強(qiáng)、時鐘振蕩器

36、電路生產(chǎn)、水晶石英細(xì)調(diào)需要外部電容. 為使振動頻率目前最. 每上述地區(qū)內(nèi)的數(shù)據(jù)是通過加入單片機(jī).其中,CPU的核心是一個電腦芯片,它是計算機(jī)和指揮控制中心等部分組成,運(yùn)算器和控制等. 運(yùn)算器的可攜帶8人計算a經(jīng)營單位的經(jīng)營邏輯,其中,1temporarilies存儲裝置8、暫時貯存器2、8的行政協(xié)調(diào)會累積裝置、B、注冊登記程序國有PSW等. 累積計200人,行政協(xié)調(diào)委員會結(jié)束對進(jìn)入檢查. 暫時運(yùn)作往往是來自一店經(jīng)營者,這是經(jīng)營下去,使計暫時經(jīng)營成果和行政協(xié)調(diào)會. 此外,行政協(xié)調(diào)會經(jīng)常被視為轉(zhuǎn)運(yùn)站,在8051年的數(shù)據(jù)傳輸. 一般微處理器一樣,是繁忙登記. 幫助大家,表示了贊同的命令. 控制程序包

37、括柜臺命令詳解,振蕩器電路和時間等. 程序相當(dāng)于16. 這是一個字節(jié)地址位的程序,其實,內(nèi)容是未來IA將進(jìn)行PC. 修改的內(nèi)容,它可以改變方向,進(jìn)行程序. 在8051電路動搖一個電腦芯片、石英晶體外,只需要相當(dāng)頻繁調(diào)整電容,其范圍是12mhz的頻率1.2mhz. 這一脈沖信號,作為8051年工作的基本節(jié)拍,即單位時間內(nèi)的最低. 8051年是計算機(jī)一樣,在和諧的工作基本控制打,就像打了一個樂團(tuán),按照發(fā)揮,指揮. 有存儲器(程序存儲器,只能讀,8051年在羊片(存儲數(shù)據(jù),是可以寫出二讀,他們每個獨(dú)立存儲空間處理,處理方式是一樣的,一般的電腦記憶. 8051年和8751年撥款程序存儲程序存貯器4kb

38、,從0000h地址,用于保存程序和方式不變. 數(shù)據(jù)8051-87518031128b記憶存儲數(shù)據(jù),00fh假地址,用于存放操作結(jié)果中,暫時儲存數(shù)據(jù)和資料等無人。在這種羊128b,有32個單位字節(jié)可以出任就業(yè)登記,這是與一般不同的微處理器、8051切片和就業(yè)登記成立一個級別相同的地點(diǎn)安排. 這是很不相同的記憶監(jiān)控監(jiān)-51系列之一-計算機(jī)芯片,除了一般電腦的方式處置. 一般電腦先向空間、存儲器和RAM,可安排在不同的空間范圍內(nèi)解決這一意愿,即存儲器的地址和RAM,地址分配不同的空間形成. 同時來訪的記憶,相應(yīng)的存儲器,只有一個地址,可以存儲,也可以撞擊,并以同樣的訪問. 這種記憶結(jié)構(gòu)稱為普林斯頓結(jié)

39、構(gòu). 8051記憶分為程序存儲空間和數(shù)據(jù)存儲空間的物理結(jié)構(gòu),有四個存儲空間:我們的程序儲存在一個數(shù)據(jù)存儲空間之外的數(shù)據(jù)存儲和一個程序存儲空間、外一、結(jié)構(gòu)形式的這種程序裝置和數(shù)據(jù)存儲與形式的數(shù)據(jù)存儲,稱為哈佛結(jié)構(gòu). 但用用戶的角度,討論8051年的記憶空間分為三類:(1在時代安排Ffffh座,0000h地點(diǎn)、從容外片(地址用十六. (二處理數(shù)據(jù)存儲空間之外 64kb 之一,被安排從地址 0000hFfffh64kb(地址 16,地點(diǎn)太. 三處理數(shù)據(jù)存儲空間 256b(地址 8 使用. 上述三個存儲空間地址重疊,鑒別設(shè)計, 象征不同的數(shù)據(jù)傳輸?shù)恼Z言系統(tǒng) 8051:CPU 訪問片,以存儲器,阻止訪問

40、命令 Ra 用 途外用一張旅游片。 8051 年 1-48 芯片計算機(jī)與我走/澳港,要求 P0、P1、P2 和 P3. 每個港口 8 準(zhǔn) 確雙向口,共占 32 別針. 每一個我/O 線可作為引進(jìn)和輸出獨(dú)立. 每個港口有門閂 (即登記特殊功能、駕駛?cè)恕⒊隹趯嵭芯彌_. 可當(dāng)門閂使 outputting 數(shù)據(jù),數(shù)據(jù)可 以緩沖時推出,但這些四個功能自我同一. 在擴(kuò)大對外開放具有時代記憶系統(tǒng),這 四個港口可準(zhǔn)確雙向口一/O 共同使用。 在擴(kuò)大對外開放具有時代記憶系統(tǒng),高 8P2 口地址見客. P0 口是一個雙向車采用 8 送數(shù)據(jù)低地址/出口 Timesharing 在 8051 年的巡回一個計算機(jī)芯片和

41、四個一/O 港口很巧妙的設(shè)計. 熟悉我/港澳邏輯電路, 不僅有利于正確、合理地使用港口、激勵周邊邏輯電路設(shè)計的一個計算機(jī)芯片有 所提高. 負(fù)載能力和接口港口有一定的要求,因為產(chǎn)量等,P0 和 P1 口的最終產(chǎn)量、 P3 口的結(jié)構(gòu),在不同的年級,所以,負(fù)載能力和接口要求其門南轅北轍相處. 不同 于其他 P0 口口,其產(chǎn)量即將年級抵抗.。在使用它的嘴巴,用共同使用,是生產(chǎn)事故 等級亮起電路,它是利用 NMOS 呼吁采取抵制外,應(yīng)同時輸入,走出失敗. 當(dāng)被用 作介紹,應(yīng)該寫"一"的門閂頭. 每一個有能駕駛 8P0 口輸出模式 LSTTL 載荷. P1 口是一個正確的雙向口也作為我/海外廣泛使用. P0 口不同產(chǎn)量的電路,請聯(lián)系電 力負(fù)荷就在有阻力. 事實上,反抗是兩種影響,同時負(fù)責(zé)操作:1 配量負(fù)責(zé),定期阻力. 另一種可能是導(dǎo)致這兩個國家與接近,使總經(jīng)理改變阻值近似零