《单片机学习和出试卷用试题库完整.pdf》由会员分享,可在线阅读,更多相关《单片机学习和出试卷用试题库完整.pdf(88页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、.专业整理.学习帮手.单片机分章节试题,供平时按上课进度学习参考(网上下载没有全部核对答案)单片机应用技术 试题库(各章只有判断、选择、多选 3 题型)微型计算机基础一、判断题(这基础部分不上自测系统,这一大节内容是别人弄的,向前人表示敬意,)()1已知 X原=0001111,则X反=11100000。()2(86)原=11010110,(86)反=10101001,(86)补=10101010。()3已知 X原=11101001,则X反=00010110。()4.1KB=400H.()5.800H=2KB.()6.十进制数89 化成二进制数为10001001。()7因为 10000H=64K
2、B,所以 0000H FFFFH一共有 63KB 个单元。()8十进制数89 的 BCD 码可以记为89H。()98 位二进制数原码的大小范围是-127 +127。()108 位二进制数补码的大小范围是-127 +127。()110 的补码是0。()12-128 的补码是10000000。()1311111111 是-1 的补码。()14-2 的补码可以记为FEH。()15已知 X原=10000100,则X补=11111100。()16将二进制数(11010111)2转换成八进制数是(327)8。()17将十进制(0.825)10转换成二进制数是(0.1101)2。()181000001101
3、 其结果是1101。第 1 页,共 88 页.专业整理.学习帮手.()19计算机中的机器码就是若干位二进制数。()20计算机中的所谓原码就是正数的符号位用“0”表示,负数的符号用“1”表示,数值位保持二进制数值不变的数码。()21计算机中负数的反码是把它对应的正数连同符号位按位取反而开形成的。()22计算机中负数的补码是在它的反码的末位加1(即求反加 1)而成的。()23用汇编语言编写的程序叫汇编程序。()24汇编语言源程序是单片机可以直接执行的程序。()25微机控制系统的抗干扰问题是关系到微机应用的成败大问题。()26凡是用单片机调试软件PDS 在计算机上汇编成功的源程序都是编写正确的源程序
4、,都能正常运行。()27 机电一体化就是机械技术、电子技术、控制技术和计算机技术相结合的综合技术。二、单项选择题1在微型计算机中,负数常用表示。C A原码B反码C补码D真值2将十进制数215 转换成对应的二进制数是。AA11010111 B11101011 C10010111 D10101101 3将十进制数98 转换成对应的二进制数是。AA1100010 B11100010 C10101010 D 1000110 3将二进制数(1101001)2 转换成对应的八进制数是。B A141 B151 C131 D 121 4十进制 126 数其对应的十六进制数可表示为。D 第 2 页,共 88 页
5、文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9
6、 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U
7、4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1
8、文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9
9、 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U
10、4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1
11、文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9
12、 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1.专业整理.学习帮手.A8F B8E CFE D7E 5二进制数110110110对应的十六进制数可表示为。B A1D3H B1B6H CDB0H D666H 6-3 的补码是。D A10000011 B11111100 C11111110 D11111101 7在计算机中“A”是用来表示。D ABCD 码B二 十进制C余三码DASCII 码8将十六进制数(1863.5B)16 转换成对应的二进制数是。B A1100001100011.0101B B1100001100011
13、.01011011 C1010001100111.01011011 D 100001111001.1000111 10将十六进制数6EH 转换成对应的十进制数是。C A100 B 90 C110 D120 9已知 X补=00000000,则真值 X=。B A+1 B0 C 1 D以上都不对10 已知 X补=01111110,则真值 X=。D A+1 B 126 C 1 D+126 11 十六进制数(4F)16 对应的十进制数是。C A78 B59 C 79 D87 12 单片机在调试过程中,通过查表将源程序转换成目标程序的过程叫。D A 汇编B编译C自动汇编D手工汇编三、多项选择题1微型计算机
14、中常用的进位计数制有BCE。第 3 页,共 88 页文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码
15、:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY1
16、0Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL
17、3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码
18、:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY1
19、0Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL
20、3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码
21、:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1.专业整理.学习帮手.A十进制B二进制C八进制D五进制E十六进制2计算机中常用的数码有ABDE。A补码BBCD 码C十进制D二进制EASCII 码3与十进制89 相等的数为ACDE。A59H B10001001B C 131Q D1011001B E(10001001)BCD 4为方便运算,计算机中的正数永远用原码表示,而负数有三种表示法,即ACE。A原码B真值C反码D机器码E补码5微型计算机中的软件主要有以下几个部分:。B
22、、C、E A操作系统B 系统软件C应用软件D诊断程序E数据库和数据库管理系统6用 4 位二进制数来表示1 位十进制数的编码方法称为。A、B、C、A二 十进制B8421BCD 码C余 3 码D二进制编码EASCII 码 7、数 123 可能是(BCDE )A、二进制数 B、八进制数 C、十六进制数 D、四进制数 E、十进制数MCS-51 单片机原理与结构一、判断题(河南大学“不建议使用”该题型,也可以用,没有说“建议不使用”,我们理解,该题型乱填也可能50%正确,所 以 学 校 不 建 议 使 用。也 就 不 录 入 在 线 测 试 系 统,且 题 也 不 多 选 择 题 也 包 含 其 知 识
23、 点,)()1MCS-51 单片机是16 位单片机。()2MCS-51 的产品 8051 与 8031 的区别是:8031 片内无 ROM。()3单片机的 CPU 从功能上可分为运算器和存贮器。第 4 页,共 88 页文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J
24、2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A
25、10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D
26、10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J
27、2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A
28、10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D
29、10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J
30、2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1.专业整理.学习帮手.()4MCS-51 的指令寄存器是一个8 位寄存器,用于暂存待执行指令,等待译码。()5MCS-51的指令寄存器是对指令寄存器中的指令进行译码,将指令转变为执行此指令所需要的电信号。()68051 的累加器ACC 是一个8 位的寄存器,简称
31、为A,用来存一个操作数或中间结果。()78051 的程序状态字寄存器PSW 是一个 8 位的专用寄存器,用于存程序运行中的各种状态信息。()8MCS-51 的程序存贮器用于存放运算中间结果。()9MCS-51的数据存贮器在物理上和逻辑上都分为两个地址空间:一个是片内的128 字节的 RAM 和 SFR,另一个是片外最大可扩充到64K 字节的 RAM。()9MCS-51 的程序存贮器在物理上分为两个地址空间:片内的 4K字节的 ROM,片外最大可扩充到60K 字节的 ROM。逻辑上为最大达64K 字节的统一ROM 空间()10单片机的复位有上电自动复位和按钮手动复位两种,当单片机运行出错或进入死
32、循环时,可按复位键重新启动。(?)11 CPU 的时钟周期为振荡器频率的倒数。(不 同 教 材 对 时 钟 周 期 定 义 不 同,)()12单片机的一个机器周期是指完成某一个规定操作所需的时间,一般情况下,一个机器周期等于一个时钟周期组成。()13 单片机的指令周期是执行一条指令所需要的时间。一般由若干个机器周期组成。()14.程序计数器PC 不能为用户编程时直接使用,因为它没有地址。()15MCS-51 单片机上电复位后,片内数据存储器的内容均为00H。()16当 8051 单片机的晶振频率为12MHz时,ALE 地址锁存信号端的输出频率为第 5 页,共 88 页文档编码:CD1R8J2Y
33、1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10
34、D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10
35、X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y
36、1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10
37、D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10
38、X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y
39、1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10
40、D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1.专业整理.学习帮手.2MHz 的方脉冲。()178051 单片机片内RAM 从 00H 1FH 的 32 个单元,不仅可以作工作寄存器使用,而且可作为RAM 来读写。()18MCS-51 单片机的片内存贮器称为程序存贮器。()19MCS-51 单片机的数据存贮器是指外部存贮器。()20MCS-51 单片机的特殊功能寄存器集中布置在片内数据存贮器的一个区域中。()218051 单片机的栈底单元是不能利用的,因此,它是一个闲置单元()22CPU 对内部 RAM 和外部 RAM 的读写速度一样快()23
41、8051 单片机,程序存储器数和数据存储器扩展的最大范围都是一样的()24 对于 8051 单片机,当 CPU 对内部程序存储器寻址超过4K 时,系统会自动在外部程序存储器中寻址()25外加晶振频率越高,系统运算速度也就越快,系统性能也就越好()是读端口还是读锁存器是用指令来区别的(如 MOV C,P1.0 是读端口,而 CPL P1.0 是读改写锁存器)。填空简答计算等学习资料请下载更新。()在 8051 的片内 RAM 区中,位地址和部分字节地址是冲突的。()当 8051 的 EA引脚接低电平时,CPU 只能访问片外ROM,而不管片内是否有程序存储器。()当 8051 的 EA 引脚接高电
42、平时,CPU 只能访问片内的4KB 空间。()工作寄存器区不允许做普通的RAM 单元来使用。()工作寄存器组是通过置位PSW 中的 RS0 和 RS1 来切换的。()特殊功能寄存器可以当作普通的RAM 单元来使用。()访问 128 个位地址用位寻址方式,访问低 128 字节单元用直接或间接寻址方式。第 6 页,共 88 页文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编
43、码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY
44、10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 H
45、L3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编
46、码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY
47、10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 H
48、L3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编
49、码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1文档编码:CD1R8J2Y1U4 HL3Y10H7D10X9 ZY10Z9J10A10D1.专业整理.学习帮手.()堆栈指针SP 的内容可指向片内00H7FH 的任何 RAM 单元,系统复位后,SP初始化为 00H。()DPTR 只能当作一个16
50、 位的特殊功能寄存器来使用。()程序计数器PC 是一个可以寻址的特殊功能寄存器。()8051 复位后,其 PC指针初始化为0000H,使单片机从该地址单元开始执行程序。()单片机系统上电后,其内部 RAM 的值是不确定的。()51 单片机的指令系统中,其加法、减法、乘法和除法必须有累加器A 的参与才能完成。1、当 MCS-51 上电复位时,堆栈指针SP=00H。(F)2、PC 存放的是当前正在执行的指令。(F)3、MCS-51 的特殊功能寄存器分布在60H80H地址范围内。(F)4、在 MCS-51 系统中,一个机器周期等于1.5us。(F)5、程序计数器PC 不能为用户编程时直接使用,因为它