rap>uvm_event&nbsp;</td>
      <td class=PParameter nowrap>e</td>
      <td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td>
      <td class=PDefaultValue width=100%>null</td>
      <td class=PAfterParameters nowrap>)</td></tr>
      </table></td></tr>
    </table></blockquote>
Starts the heartbeat monitor. </div></div><div class=CToolTip id="tt7"><div class=CMethod>
    <blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>function void stop ()
  </td></tr></table></blockquote>Stops t