[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fgs5Sdb8zlLvySazZNAa_TL1FMuWyIeLpK6UF3CaYfkw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":22,"type":23},[],"2025-06-05 19:59:07",194915896,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},15,"20cdbe700c455ad3b44b7a5c091d7b4f","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F13cc2c13873e31fb9b6126c4b5121a9b.jpg","单片机原理及应用","work_43711120","奋斗百年路 启航新征程","请写出完成下列操作的指令: (1)使累加器A的高4位清0,其余位不变. (2)使累加器A的高4位置1,其余位不变. (3)使累加器A的低4位取反,其余位不变. (4)使累加器A的内容全部取反(用两种方法)",[17,24,29,34,37,42,47,52,57,62],{"answer":18,"createTime":5,"id":19,"options":20,"question":21,"source":22,"type":23},[],194915892,[],"80C51如何确定和改变当前工作寄存器区","v1",4,{"answer":25,"createTime":5,"id":26,"options":27,"question":28,"source":22,"type":23},[],194915893,[],"简述读外ROM和读写外RAM用到的控制信号",{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":22,"type":23},[],194915894,[],"051单片机的片内RAM容量有多少(不包括SFR),可以分为那几个区",{"answer":35,"createTime":5,"id":6,"options":36,"question":15,"source":22,"type":23},[],[],{"answer":38,"createTime":5,"id":39,"options":40,"question":41,"source":22,"type":23},[],194915898,[],"根据下列已知条件,试求中断开关状态.①IE=93H; ②IE=84H; ③IE=92H; ④IE=17H",{"answer":43,"createTime":5,"id":44,"options":45,"question":46,"source":22,"type":23},[],194915900,[],"按下列要求设置IP:①INT1、串行口为高优先级,其余为低优先级;②T1为高优先级,其余为低优先级;③T0、T1为低优先级,其余为高优先级;④串行口为低优先级,其余为高优先级",{"answer":48,"createTime":5,"id":49,"options":50,"question":51,"source":22,"type":23},[],194915902,[],"按下列要求设置TMOD.①T0计数器、方式1,运行与INTO有关;T1定时器、方式2,运行与INT1无关;②T0定时器、方式0,运行与INTO有关;T1计数器、方式2,运行与INT1有关;③T0计数器、方式2,运行与INTO无关;T1计数器、方式1,运行与INT1有关;④T0定时器、方式3,运行与INTO无关;T1定时器、方式2,运行与INT1无关",{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":22,"type":23},[],194915904,[],"请写出51单片机中断系统中5个中断源的名称以及各中断源的入口地址",{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":22,"type":23},[],194915906,[],"中断响应需要满足哪些条件",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":22,"type":23},[],194915908,[],"若晶体振荡器为11.0592MHz,串行口工作于方式1,波特率为4800bit\u002Fs,写出用T1作为波特率发生器的方式控制字和计数初值"]