[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f_Yp-gGjQfX9bKcRRlxkREaBmUe4eZffDHymcOohcotM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-06-17 12:41:28",202556055,[8,9,10,11],"16K字节","4K字节","32K字节","8K字节",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},34,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_44256663","项目2学习单片机的硬件系统(一)","8051单片机内部的ROM容量是多大呢",[21,33,42,51,60,69,78,86,89,99],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-17 12:41:27",202555984,[26,27,28,29],"0000H","1000H","0001H","0100H","下载程序后,程序的第一条指令都是存放在ROM的哪个地址单元","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],202555987,[37,38,39,40],"P0","P3","P2","P1","单片机系统扩展时,分时复用作为8条数据线和低8位地址线的是哪一个并行I\u002FO端口",{"answer":43,"createTime":23,"id":44,"options":45,"question":50,"source":31,"type":32},[],202555992,[46,47,48,49],"存放指令","存放上一条指令地址","存放下一条指令地址","存放正在执行的指令地址","单片机中的程序计数器PC用来",{"answer":52,"createTime":23,"id":53,"options":54,"question":59,"source":31,"type":32},[],202555997,[55,56,57,58],"用户RAM","工作寄存器区","SFR","位寻址区","下面 没有位于片内低128 B数据存储器",{"answer":61,"createTime":23,"id":62,"options":63,"question":68,"source":31,"type":32},[],202556008,[64,65,66,67],"8","32","16","4","单片机每个并行I\u002FO端口包括几条I\u002FO口线",{"answer":70,"createTime":23,"id":71,"options":72,"question":77,"source":31,"type":32},[],202556024,[73,74,75,76],"指示复位","选择定时器","选择工作寄存器组","选择工作方式","PSW中的RS1和RS0用来",{"answer":79,"createTime":5,"id":80,"options":81,"question":85,"source":31,"type":32},[],202556034,[82,40,83,84],"ACC","PC","PSW","下列哪个寄存器的内容有自动加1功能",{"answer":87,"createTime":5,"id":6,"options":88,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":90,"createTime":91,"id":92,"options":93,"question":98,"source":31,"type":32},[],"2025-06-17 12:41:29",202556067,[94,95,96,97],"Search Function Register","Special Function Register","Special Flash Register","Special Function Right","SFR的英文是什么",{"answer":100,"createTime":91,"id":101,"options":102,"question":103,"source":31,"type":32},[],202556074,[39,40,37,38],"单片机的哪一个并行I\u002FO端口的引脚具有第二功能"]