20春学期《数字信号处理器原理及应用》在线平时作业2

adminhan

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">当</span><span lang="EN-US" style="FONT-SIZE: 9.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">XPLLDIS</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">为<u><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>时，系统直接采用外部时钟或外部晶振直接作为系统时钟</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"> </span>
A:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">高电平</span>
B:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">低电平</span>
C:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">高阻</span>
D:&nbsp; <span style="FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">悬空</span>

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">此</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">C281x CPU</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">除了支持</span><u><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">个</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">CPU</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">级的中断外</span>
A:64
B:16
C:32
D:8

<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">DSP</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">内核</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">它包括处理器内核，指令缓冲器，数据存储器和程序存储器，</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">I/O</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口控制器，程序地址总线和程序数据总线，直接读取的地址总线和数据总线等单元，其中最核心的是（）</span>
A:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">处理器内核</span>
B:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">指令缓冲器</span>
C:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数据存储器和程序存储器</span>
D:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">程序地址总线和程序数据总线</span>

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">世界上首枚</span><span lang="EN-US"><font face="Times New Roman">DSP</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">芯片采用工艺是（）</span></font></p>
A:<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">CMOS</span>
B:<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">PMOS</span>
C:<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">NMOS</span>
D:<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">MOS</span>

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">在<span lang="EN-US">F2810</span>和<span lang="EN-US">F2812</span>处理器中，除了<span lang="EN-US">NMI</span>和<span lang="EN-US">RESET</span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">其余</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">12</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">个可屏蔽中断连接在<u><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></u></span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><span style="mso-spacerun: yes">&nbsp;</span></span>
A:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">时钟模块</span>
B:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">时钟模块</span>
C:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">事件管理器模块</span>
D:&nbsp; <span lang="EN-US" style="FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">CAN</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">总线模块<span lang="EN-US"><o:p></o:p></span></span>

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">为避免产生短通状态可以采用两种方法：调整功率管或者<u><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u></span>
A:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">调整</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">PWM</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">控制信号</span>
B:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">调整<span lang="EN-US">CPU</span>频率</span>
C:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">调整通信速率</span>
D:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">调整系统时间</span>

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">看门狗计数器最大计数值是<u><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;</span><span style="mso-spacerun: yes">&nbsp;</span><span style="mso-spacerun: yes">&nbsp;</span></span></u></span>
A:256
B:254
C:255
D:257

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">在地址位多处理器协议中</span><span lang="EN-US" style="FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">(ADDR/IDLE MODE</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">位为</span><span lang="EN-US" style="FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">1)</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">，最后一个数据位后有一个附加位，称之为</span><u><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></span></p>
A:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'">标识符</span>
B:<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">校验位<span lang="EN-US"><o:p></o:p></span></span></p>
C:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">仲裁位</span>
D:<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">地址位</span><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p></o:p></span></p>

FET开关管在状态切换过程中（    ）
A:闭合快于开启
B:开启快于闭合
C:开启闭合一样快
D:开启慢于闭合

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">光电编码器，是一种通过光电转换将输出轴上的机械几何位移量转换成<u><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="mso-spacerun: yes">&nbsp;</span></span></u>的传感器<span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">模拟量 </span>
B:<span style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">脉冲或数字量<span lang="EN-US"><o:p></o:p></span></span>
C:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">通信数据</span>
D:<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">输入数据</span>

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">PWM</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">的定长周期称之为</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">PWM</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">载波周期，它的倒数称为</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">PWM</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">载波频率。<span lang="EN-US"><o:p></o:p></span></span></p>
A:错误
B:正确

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">F2812</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">处理器提供两个</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">SCI</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">接口，为可以独立的操作实现半双工通信，或者同时操作实现全双工通信。</span></p>
A:错误
B:正确

<div>软件改变系统工作频率时，可以立即生效，无需等待。</div>
A:错误
B:正确

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">定时器的时钟源可以取自外部输入信号（</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">TCLKIN</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">），</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">QEP</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">单元，内部时钟或者看门狗时钟。</span></p>
A:错误
B:正确

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">虽然应用于不同领域的</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">DSP</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">有不同的型号但其内部结构大同小异，都具有哈佛</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"> </span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">（</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Harvard</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">）结构的特征。</span>
A:错误
B:正确

<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">PWM</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字脉冲输出可以用来表征模拟信号，在</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: TimesNewRomanPSMT; mso-fareast-font-family: 宋体; mso-bidi-font-family: TimesNewRomanPSMT; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">PWM</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">输出端进行微分可以得到期望的模拟信号。</span>
A:错误
B:正确

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">由于</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">CAN </span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">总线是一种串行通信协议，具有较高的通信速率、较强的抗干扰能力。</span></p>
A:错误
B:正确

INTM作为全局中断使能控制位，当该位等于1 时全局中断使能，当该位等于0 时禁止所有中断。
A:错误
B:正确

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt; mso-fareast-font-family: TimesNewRomanPSMT"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;</span></span></span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt; mso-ascii-font-family: TimesNewRomanPSMT">系统在上电复位时，</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">SPI</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt; mso-ascii-font-family: TimesNewRomanPSMT">工作在标准</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">SPI</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt; mso-ascii-font-family: TimesNewRomanPSMT">模式，禁止</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">FIFO</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt; mso-ascii-font-family: TimesNewRomanPSMT">功能。</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt"><o:p></o:p></span></p>
A:错误
B:正确

<p class="MsoNormal" style="MARGIN-LEFT: 21pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt"><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">外设产生中断时，中断标志寄存器（</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">IF</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">）相应的位将被置</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">0</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">，如果中断使能寄存器（</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">IE</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">）中相应的使能位也被清零，则外设产生的中断将向</span><span lang="EN-US" style="LINE-HEIGHT: 150%; FONT-FAMILY: TimesNewRomanPSMT; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: TimesNewRomanPSMT; mso-font-kerning: 0pt">PIE</span><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">控制器发出中断申请。</span></p>
A:错误
B:正确