?? ds18b20

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<HTML><HEAD><TITLE>DS18B20測量溫度</TITLE>
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<P><SPAN lang=EN-US 
style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">DS18B20采用9或12個位來表示被測量點的溫度，通過單一根線和控制器進行信息通訊。溫度讀取，溫度測量和溫度設置等所需的能源也都可以數據線上獲取而無須另加電源。由于每個DS18B20內部都設有一個獨一的序列號，所以多個DS18B20可以共存與同一條線上。<O:P> 
</O:P></SPAN></P>
<P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">表<SPAN 
lang=EN-US>1-1<SPAN style="mso-spacerun: yes">&nbsp; 
</SPAN>DS18B20內部暫存寄存器分布<O:P> </O:P></SPAN></SPAN></P>
<TABLE 
style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-top-alt: solid gray 1.5pt; mso-border-bottom-alt: solid gray 1.5pt; mso-padding-alt: 0pt 5.4pt 0pt 5.4pt" 
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    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: gray 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: gray 0.75pt solid; HEIGHT: 18pt" 
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      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">寄存器內容<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: gray 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: gray 0.75pt solid; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">字節地址<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt; mso-border-top-alt: solid gray .75pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">溫度低字節<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt; mso-border-top-alt: solid gray .75pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">0<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">溫度高字節<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">1<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">高溫限值<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">2<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">低溫限值<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">3<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">設置寄存器<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">4<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">保留<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">5<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">保留<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">6<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">保留<SPAN 
      lang=EN-US><O:P> </O:P></SPAN></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: medium none; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">7<O:P> 
      </O:P></SPAN></P></TD></TR>
  <TR style="HEIGHT: 18pt">
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 104.4pt; PADDING-TOP: 0pt; BORDER-BOTTOM: gray 1.5pt solid; HEIGHT: 18pt" 
    vAlign=top width=139>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">CRC校驗<O:P> 
      </O:P></SPAN></P></TD>
    <TD 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 63pt; PADDING-TOP: 0pt; BORDER-BOTTOM: gray 1.5pt solid; HEIGHT: 18pt" 
    vAlign=top width=84>
      <P><SPAN lang=EN-US 
      style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">8<O:P> 
      </O:P></SPAN></P></TD></TR></TBODY></TABLE>
<P><SPAN 
style="FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt">設置寄存器的內容用于確定溫度值的數字轉換分辨率。該字節各位的意義如下：<SPAN 
lang=EN-US><O:P> </O:P></SPAN></SPAN></P>
<TABLE width="70%" border=1>
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