📄 磁动力电子--本站原创--小巧的键盘练习器 (下篇).htm
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<TD height=20>E0, 28</TD>
<TD height=20>E0, F0, 28</TD></TR>
<TR bgColor=#ffffff>
<TD height=20>WWW Refresh</TD>
<TD height=20>E0, 20</TD>
<TD height=20>E0, F0, 20</TD></TR>
<TR bgColor=#ffffff>
<TD height=20>WWW Favorites</TD>
<TD height=20>E0, 18</TD>
<TD height=20>E0, F0, 18</TD></TR></TBODY></TABLE>
<DIV align=center>表4: 多媒体功能键扫描码(第二套扫描码集)<BR><BR>
<TABLE cellSpacing=1 width=546 bgColor=#99cc33
border=0><TBODY>
<TR>
<TD width=53 height=25>
<DIV align=center>命令字</DIV></TD>
<TD width=486 height=25>说明</TD></TR>
<TR bgColor=#ffffff>
<TD width=53 height=20>
<DIV align=center>FF</DIV></TD>
<TD width=486 height=20>使键盘复位。</TD></TR>
<TR bgColor=#ffffff>
<TD width=53 height=20>
<DIV align=center>FE</DIV></TD>
<TD width=486
height=20>重新发送,当主机在接收中出现错误就可以用些命令,键盘接收后回应最后发送的扫描码或命令回应,但是0xFE
绝不会作为键盘的回应而被发送。</TD></TR>
<TR bgColor=#ffffff>
<TD width=53 height=20>
<DIV align=center>F6</DIV></TD>
<TD width=486 height=20>载入缺省的设置。</TD></TR>
<TR bgColor=#ffffff>
<TD width=53 height=20>
<DIV align=center>F5</DIV></TD>
<TD width=486 height=20>键盘停止扫描,同时载入缺省值键。</TD></TR>
<TR bgColor=#ffffff>
<TD width=53 height=20>
<DIV align=center>F4</DIV></TD>
<TD width=486 height=20>用上0xF5命令禁止键盘后重新使能键盘。</TD></TR>
<TR bgColor=#ffffff>
<TD width=53 height=20>
<DIV align=center>ED</DIV>
<DIV align=center></DIV></TD>
<TD width=486
height=20>主机在发送本命令后跟随发送一个参数字节用于指示键盘上Num Lock, Caps
Lock,各Scroll Lock LED的状态。参数字节的bit0位为Scroll
Lock,bit1位为Num Lock,bit2位Caps
Lock,这些位为1时相应的LED点亮,为0则熄灭。</TD></TR></TBODY></TABLE>表5 常用的键盘命令字</DIV></TD></TR>
<TR>
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<TD class=T12_R2>本文相关信息:</TD></TR>
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<P>收录时间:2005年前<BR>整理时间:2006.10.20<BR>作者:温正伟<BR>原载:无线电杂志<BR>
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