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📁 单片机教程 用c语言实现编程 可以大大缩短我们的开发周期
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                        <DIV align=center>83H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>数据存储器指针高<SPAN>8位</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*IE</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>A8H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>中断允许控制器</DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*IP</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>D8H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>中断优先控制器</DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*P0</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>80H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>端口<SPAN>0</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*P1</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>90H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>端口<SPAN>1</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*P2</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>A0H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>端口<SPAN>2</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*P3</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>B0H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>端口<SPAN>3</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>PCON</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>87H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>电源控制及波特率选择</DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*SCON</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>98H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>串行口控制器</DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>SBUF</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>99H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>串行数据缓冲器</DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>*TCON</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>88H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>定时器控制</DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>TMOD</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>89H</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>定时器方式选择</DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>TL0</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>8AH</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>定时器<SPAN>0低8位</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>TL1</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>8BH</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>定时器<SPAN>1低8位</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>TH0</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>8CH</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>定时器<SPAN>0低8位</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=189 vborder="1">
                        <DIV align=center>TH1</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV align=center>8DH</DIV></TD>
                      <TD width=190 vborder="1">
                        <DIV 
                    align=center>定时器<SPAN>1高8位</SPAN></DIV></TD></TR></TBODY></TABLE>
                  <DIV align=center>&nbsp;</DIV>
                  <DIV align=center>附录三　运算符优先级和结合性</DIV>
                  <P align=center>
                  <TABLE cellSpacing=0 cellPadding=0 border=1>
                    <TBODY>
                    <TR>
                      <TD width=67 vborder="1">
                        <DIV align=center>级　别</DIV></TD>
                      <TD width=160 vborder="1">
                        <DIV align=center>类　别</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>名　称</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>运算符</DIV></TD>
                      <TD width=114 vborder="1">
                        <DIV align=center>结合性</DIV></TD></TR>
                    <TR>
                      <TD width=67 rowSpan=3 vborder="1">
                        <DIV align=center>1</DIV></TD>
                      <TD width=160 rowSpan=3 vborder="1">
                        <DIV align=center>强制转换、数组、</DIV>
                        <DIV align=center>结构、联合</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>强制类型转换</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>( )</DIV></TD>
                      <TD width=114 rowSpan=3 vborder="1">
                        <DIV align=center><SPAN>右结合</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=152 vborder="1">
                        <DIV align=center>下标</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>[ ]</DIV></TD></TR>
                    <TR>
                      <TD width=152 vborder="1">
                        <DIV align=center>存取结构或联合成员</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>-&gt;或.</DIV></TD></TR>
                    <TR>
                      <TD width=67 rowSpan=8 vborder="1">
                        <DIV align=center>2</DIV></TD>
                      <TD width=160 vborder="1">
                        <DIV align=center><SPAN>逻</SPAN>　辑</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>逻辑非</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>!</DIV></TD>
                      <TD width=114 rowSpan=8 vborder="1">
                        <DIV align=center><SPAN>左结合</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=160 vborder="1">
                        <DIV align=center>字　位</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center><SPAN>按位取反</SPAN></DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>~</DIV></TD></TR>
                    <TR>
                      <TD width=160 vborder="1">
                        <DIV align=center>增　量</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>加一</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>++</DIV></TD></TR>
                    <TR>
                      <TD width=160 vborder="1">
                        <DIV align=center>减　量</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>减<SPAN>一</SPAN></DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>--</DIV></TD></TR>
                    <TR>
                      <TD width=160 rowSpan=2 vborder="1">
                        <DIV align=center>指　针</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>取地址</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>&amp;</DIV></TD></TR>
                    <TR>
                      <TD width=152 vborder="1">
                        <DIV align=center><SPAN>取内容</SPAN></DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>*</DIV></TD></TR>
                    <TR>
                      <TD width=160 vborder="1">
                        <DIV align=center>算　术</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center><SPAN>单目减</SPAN></DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>-</DIV></TD></TR>
                    <TR>
                      <TD width=160 vborder="1">
                        <DIV align=center>长度计算</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>长度计算</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center><SPAN>sizeof</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=67 rowSpan=3 vborder="1">
                        <DIV align=center>3</DIV></TD>
                      <TD width=160 rowSpan=3 vborder="1">
                        <DIV align=center>算　术</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>乘</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>*</DIV></TD>
                      <TD width=114 rowSpan=16 vborder="1">
                        <DIV align=center><SPAN>右结合</SPAN></DIV></TD></TR>
                    <TR>
                      <TD width=152 vborder="1">
                        <DIV align=center>除</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>/</DIV></TD></TR>
                    <TR>
                      <TD width=152 vborder="1">
                        <DIV align=center><SPAN>取模</SPAN></DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>%</DIV></TD></TR>
                    <TR>
                      <TD width=67 rowSpan=2 vborder="1">
                        <DIV align=center>4</DIV></TD>
                      <TD width=160 rowSpan=2 vborder="1">
                        <DIV align=center>算术和指针运算</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>加</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>+</DIV></TD></TR>
                    <TR>
                      <TD width=152 vborder="1">
                        <DIV align=center>减</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>-</DIV></TD></TR>
                    <TR>
                      <TD width=67 rowSpan=2 vborder="1">
                        <DIV align=center>5</DIV></TD>
                      <TD width=160 rowSpan=2 vborder="1">
                        <DIV align=center>字　位</DIV></TD>
                      <TD width=152 vborder="1">
                        <DIV align=center>左移</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>&lt;&lt;</DIV></TD></TR>
                    <TR>
                      <TD width=152 vborder="1">
                        <DIV align=center>右移</DIV></TD>
                      <TD width=76 vborder="1">
                        <DIV align=center>&gt;&gt;</DIV></TD></TR>
                    <TR>
                      <TD width=67 rowSpan=4 vborder="1">
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