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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML EXPERIMENTAL 970324//EN"><HTML><HEAD><META NAME="GENERATOR" CONTENT="Adobe FrameMaker 5.5/HTML Export Filter"><LINK REL="STYLESHEET" HREF="ch08.css"><TITLE> 8.8	Level-sensitive dominance </TITLE></HEAD><BODY BGCOLOR="#ffffff"><DIV><HR><P><A HREF="ch08.htm">Chapter&nbsp;&nbsp;start</A>&nbsp;&nbsp;&nbsp;<A HREF="ch08.7.htm">Previous&nbsp;&nbsp;page</A></P></DIV><H1 CLASS="Section"><A NAME="pgfId=386"> </A>8.8	L<A NAME="marker=159"> </A><A NAME="marker=160"> </A><A NAME="marker=161"> </A>evel-sensitive dominance </H1><P CLASS="Body"><A NAME="pgfId=387"> </A><A HREF="ch08.8.htm#64407" CLASS="XRef">See : Mixing of level-sensitive and edge-sensitive entries</A> shows level-sensitive and edge-sensitive entries in the example above, their level-sensitive or edge-sensitve behavior, and a case of input values that each includes.</P><TABLE BORDER="1"><CAPTION><P CLASS="TableTitle"><A NAME="pgfId=375"> </A>Table&nbsp;8-3<EM CLASS="-">: Mixing of level-sensitive and edge-sensitive entries</EM><A NAME="64407"> </A></P></CAPTION><TR><TH ROWSPAN="1" COLSPAN="1"><P CLASS="CellHeading"><A NAME="pgfId=383"> </A>entry</P></TH><TH ROWSPAN="1" COLSPAN="1"><P CLASS="CellHeading"><A NAME="pgfId=384"> </A>included case</P></TH><TH ROWSPAN="1" COLSPAN="1"><P CLASS="CellHeading"><A NAME="pgfId=385"> </A>behavior</P></TH></TR><TR><TD ROWSPAN="1" COLSPAN="1"><P CLASS="CellBody"><A NAME="pgfId=405"> </A><EM CLASS="-">?  ?? 01: ?: 1;</EM></P></TD><TD ROWSPAN="1" COLSPAN="1"><P CLASS="CellBody"><A NAME="pgfId=406"> </A><EM CLASS="-">0  00 01: 0: 1;</EM></P></TD><TD ROWSPAN="1" COLSPAN="1"><P CLASS="CellBody"><A NAME="pgfId=407"> </A>level-sensitive</P></TD></TR><TR><TD ROWSPAN="1" COLSPAN="1"><P CLASS="CellBody"><A NAME="pgfId=408"> </A><EM CLASS="-">f  ?? ??: ?: -;</EM></P></TD><TD ROWSPAN="1" COLSPAN="1"><P CLASS="CellBody"><A NAME="pgfId=409"> </A><EM CLASS="-">f  00 01: 0: 0;</EM></P></TD><TD ROWSPAN="1" COLSPAN="1"><P CLASS="CellBody"><A NAME="pgfId=410"> </A>edge-sensitive</P></TD></TR></TABLE><P CLASS="Body"><A NAME="pgfId=390"> </A><EM CLASS="-">The included cases specify opposite next state values for the same input and current state combination. The level-sensitive included case specifies that </EM>when<EM CLASS="-"> the inputs </EM><CODE CLASS="code">clock</CODE><EM CLASS="-">,</EM> <CODE CLASS="code">jk</CODE><EM CLASS="-"> and</EM><CODE CLASS="code"> pc</CODE> values<EM CLASS="-"> are </EM><CODE CLASS="code">0</CODE>, <CODE CLASS="code">00</CODE>, and <CODE CLASS="code">01</CODE><EM CLASS="-">, and the current state is</EM> <CODE CLASS="code">0</CODE><EM CLASS="-">, the output changes to</EM> <CODE CLASS="code">1</CODE><EM CLASS="-">. The edge-sensitive included case specifies that when c</EM><CODE CLASS="code">lock</CODE><EM CLASS="-"> falls from 1 to 0, and the other inputs</EM> <CODE CLASS="code">jk</CODE><EM CLASS="-"> and </EM><CODE CLASS="code">pc</CODE><EM CLASS="-"> are </EM><CODE CLASS="code">00</CODE>, <CODE CLASS="code">01</CODE><EM CLASS="-">, and the current state is 0, the output changes to </EM><CODE CLASS="code12">0</CODE><EM CLASS="-">. </EM></P><P CLASS="Body"><A NAME="pgfId=391"> </A><EM CLASS="-">When the edge-sensitive case is processed first, followed by the level-sensitive case, the output changes to 1.</EM><A NAME="marker=165"> </A><A NAME="marker=166"> </A></P><P CLASS="Body"><A NAME="pgfId=396"> </A></P><HR><P><A HREF="ch08.htm">Chapter&nbsp;&nbsp;start</A>&nbsp;&nbsp;&nbsp;<A HREF="ch08.7.htm">Previous&nbsp;&nbsp;page</A></P></BODY></HTML>
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