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"Times New Roman"'>位定时器计数器，</span><span lang=EN-US>TL0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>可作为定时器也可作为计数器，占用</span><span lang=EN-US>T0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>在</span><span lang=EN-US>TCON</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>和</span></p>

<p class=MsoNormal style='margin-left:21.0pt;text-indent:21.0pt'><span
lang=EN-US>TMOD</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>中的控制位和标志位。而</span><span lang=EN-US>TH0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>只能作定时器用，占用</span><span lang=EN-US>T1</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>资源的</span><span lang=EN-US>TR1</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>和</span><span
lang=EN-US>TF1</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>。在这</span></p>

<p class=MsoNormal style='margin-left:21.0pt;text-indent:21.0pt'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>种方式下</span><span lang=EN-US>T1</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>仍可使用于方式</span><span
lang=EN-US>0</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>，</span><span lang=EN-US>1</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>，</span><span lang=EN-US>2</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>，但不能使用中断方式；只有将</span><span
lang=EN-US>T1</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>作为串行口波特</span></p>

<p class=MsoNormal style='margin-left:21.0pt;text-indent:21.0pt'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>率发生器的情况下，</span><span lang=EN-US>T0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>才工作于方式</span><span lang=EN-US>3</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>，以增加一个定时器</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US>GATE</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>门控制：</span></p>

<p class=MsoNormal><span lang=EN-US><span style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>决定</span><span lang=EN-US>T0</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>，</span><span
lang=EN-US>T1</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的定时器的开启关闭的控制权。</span><span lang=EN-US>GATE=0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>由软件设定</span><span lang=EN-US>TR0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>，</span><span lang=EN-US>TR1</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>控制定时器的启停，</span></p>

<p class=MsoNormal style='text-indent:21.0pt;mso-char-indent-count:2.0'><span
lang=EN-US>GATE=1</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>由外部中断引脚</span><span lang=EN-US>INT0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>（</span><span lang=EN-US>P3.2</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>）</span><span
lang=EN-US>,INT1(P3.3)</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的输入电平控制</span><span
lang=EN-US>T0,T1</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的启停</span><span lang=EN-US>.(</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>高电平工作</span><span lang=EN-US>,</span></p>

<p class=MsoNormal style='text-indent:21.0pt;mso-char-indent-count:2.0'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>低电平停止</span><span lang=EN-US>)</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>。</span></p>

<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>C/~T</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>：功能选择位：</span><span lang=EN-US>C/~T=0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>时是定时器方式，</span><span lang=EN-US>C/~T=1</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>时是计数器方式。</span></p>

<span lang=EN-US style='font-size:10.5pt;mso-bidi-font-size:12.0pt;font-family:
"Times New Roman";mso-fareast-font-family:宋体;mso-font-kerning:1.0pt;mso-ansi-language:
EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA'><br clear=all
style='page-break-before:always'>
</span>

<p class=MsoNormal><a name=TCON><span lang=EN-US><span
style='mso-spacerun:yes'>&nbsp;</span></span></a><span style='mso-bookmark:
TCON'><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>定时器</span><span lang=EN-US>/</span></span><span
style='mso-bookmark:TCON'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>计数器控制寄存器</span></span>
<span lang=EN-US><a href="8051内存.htm">TCON</a></span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>：</span></p>

<table class=MsoTableGrid border=1 cellspacing=0 cellpadding=0
 style='margin-left:23.15pt;border-collapse:collapse;border:none;mso-border-alt:
 solid windowtext .5pt;mso-yfti-tbllook:480;mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
 mso-border-insideh:.5pt solid windowtext;mso-border-insidev:.5pt solid windowtext'>
 <tr style='mso-yfti-irow:0'>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
  mso-hansi-font-family:"Times New Roman"'>位地址</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>8FH</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>8EH</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>8DH</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>8CH</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>8BH</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>8AH</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>89H</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-left:none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:
  solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>88H</span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:1;mso-yfti-lastrow:yes'>
  <td width=57 valign=top style='width:42.55pt;border:solid windowtext 1.0pt;
  border-top:none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>TCON</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>TF1</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>TR1</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>TF0</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>TR0</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>IE1</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>IT1</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>IE0</span></p>
  </td>
  <td width=57 valign=top style='width:42.55pt;border-top:none;border-left:
  none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
  mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
  mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal><span lang=EN-US>IT0</span></p>
  </td>
 </tr>
</table>

<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US>TR1</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>：</span><span
lang=EN-US>T1</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>定时器的运行控制位，</span><span lang=EN-US>GATE=0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>时软件使</span><span lang=EN-US>TR1=1</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>启动定时器，</span><span lang=EN-US>TR1=0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>关定时器，</span><span lang=EN-US>TR0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>控制</span><span lang=EN-US>T0</span><span style='font-family:
12345

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