[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f5GNbBkjD4uavJRAfv3ZtPxE6MUtfR-bsSkSdu-MzWMc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":22,"type":23},[],"2024-11-28 17:24:24",167907844,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},31,"48460b0e980df8c80daf51ccedbd38c4","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F062366a087568a7a534a1631baeb88d8.jpg","单片机原理及应用（2024秋 48学时）","work_36881457","单片机最小系统作业(第3周 2024.9.18)","画图并简述51单片机的片外三总线结构. (注:①先简述后画图,②本题要求抄题并将答案写在作业本上,方向摆正拍照上传.)",[17,24,29,32,38,43,48,53,58,63],{"answer":18,"createTime":5,"id":19,"options":20,"question":21,"source":22,"type":23},[],167907842,[],"根据晶振频率fosc的值,计算晶振周期、机器周期、指令周期的值并填表. (注:①要写上时间的单位,如:秒 s、毫秒 ms、微秒 us等.②本题要求把计算过程和填好的表格都写在作业本上,拍照上传.) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fec28b19bac410be226ff68aef3bac9b2.png\">","v1",4,{"answer":25,"createTime":5,"id":26,"options":27,"question":28,"source":22,"type":23},[],167907843,[],"单片机最小系统由哪些部分组成?(3分)根据给出的单片机引脚图,画出单片机最小系统电路图.(7分) (注:①先回答问题,再画最小系统电路图,图中元件参数按普中开发板电路原理图上来写,②本题要求抄题并将答案写在作业本上,拍照上传.) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F661e0e0570cebee23b69b7bed5b3e63d.png\">",{"answer":30,"createTime":5,"id":6,"options":31,"question":15,"source":22,"type":23},[],[],{"answer":33,"createTime":5,"id":34,"options":35,"question":36,"source":22,"type":37},[],167907845,[],"若51单片机系统中的晶振频率fosc为6MHZ,则1个机器周期为( ),要复位单片机则需要给RST引脚大于( ) 的( )电平",2,{"answer":39,"createTime":5,"id":40,"options":41,"question":42,"source":22,"type":37},[],167907846,[],"51单片机复位后,多数寄存器的初值都为( ),但是,4个并行口P0~P3的值为( )H,堆栈指针SP的值为( )H,数据缓冲器SBUF 的值为( )",{"answer":44,"createTime":5,"id":45,"options":46,"question":47,"source":22,"type":37},[],167907847,[],"51单片机复位后,程序计数器PC的初值为( )H,单片机片内ROM中的程序从地址为( )H的单元开始执行,程序计数器PC是( )位的寄存器,其取值范围是 0000H~( )H,最大的寻址空间为( )KB",{"answer":49,"createTime":5,"id":50,"options":51,"question":52,"source":22,"type":37},[],167907848,[],"电容的常用单位有:法拉(F)、毫法(mF)、微法(uF)、纳法(nF)、皮法(pF),它们之间的换算关系是:1F=1000mF=( )uF=( )nF=( )pF.下面的电路图中接在电源旁用于抗高频干扰的电容C10的值是( )pF或者( )uF. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F73a5c7852f1c3a8ee8740051ff7ecd8f.png\">",{"answer":54,"createTime":5,"id":55,"options":56,"question":57,"source":22,"type":37},[],167907849,[],"普中开发板上的51单片机如下图1所示,STC单片机的命名规则如图2所示,则开发板上单片机的电源电压为( )v,程序存储器ROM的容量为( )B,数据存储器RAM的容量为( )B,最大的晶振频率为( )MHZ ,封装形式为PDIP,引脚数为40个. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbcba50d99a8d0345bd941baebad64c9b.webp\"> \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc082c9b4f78e3e8db852acc9920fcafd.webp\"> 图1 图2",{"answer":59,"createTime":5,"id":60,"options":61,"question":62,"source":22,"type":37},[],167907850,[],"单片机就像一个大家庭,在单片机这个大家庭中,( )是家长,串行口是稳重的大姐,串行通信的特点是速度( )、距离( ),并行口P0~P3是活泼好动的孪生四兄弟,并行通信的特点是速度( )、距离( ),( )是负责安排时间的二姐,( )是负责处理突发事件的三姐,另外,( )电路和时钟电路是家长手中的两个法宝.在这个大家庭中,( )是用来存放程序的大房间,( )是用来存放数据的小房间. 注:速度选填 快、慢,距离选填 近、远 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1e0ca49eb62574c1832427c535822e2c.webp\">",{"answer":64,"createTime":5,"id":65,"options":66,"question":67,"source":22,"type":37},[],167907851,[],"8051单片机片内的主要功能部件如下:有1个( )位的CPU ,有( )个16位的定时器\u002F计数器,有一个能管理( )个中断源的中断系统,有( )个8位的并行I\u002FO口,有( )个串行口,片内RAM的容量是128B,片内ROM的容量是( )B"]