switch.xml

springer_-modeling_and_simulation_for_rf_system_design所有配套光盘源码5-11章

<?xml version="1.0" encoding="ISO-8859-1"?>
<?xml-stylesheet href="/usr/local/vamdoc-1.0.2-kluwer/config/model.xsl" type="text/xsl"?>
<!DOCTYPE model SYSTEM "/usr/local/vamdoc-1.0.2-kluwer/config/model.dtd"><model>
  <symbol>../symbol/switch.png</symbol>
  <comments>
    <title>Switch</title>
    <model_name>SWITCH(RAMP)</model_name>
    <library>N/A</library>
    <structure>N/A</structure>
    <description>This model describes a switch that is built up with a changeable<br></br>resistance. Transistions are modeled using the 'RAMP attribute<br></br>where the transistion times can be parametrized.<br></br></description>
    <link_source><A HREF="../src/switch.vhd">See source code</A></link_source>
    <dependency>
      <library>IEEE_proposed</library>
      <design_unit>ELECTRICAL_SYSTEMS</design_unit>
    </dependency>
    <dependency>
      <library>IEEE</library>
      <design_unit>STD_LOGIC_1164</design_unit>
    </dependency>
  </comments>
  <interface>
    <parameter>
      <name>RON</name>
      <type>REAL</type>
      <default>1.0E-3</default>
      <unit></unit>
      <comment> resistance when switch is closed</comment>
    </parameter>
    <parameter>
      <name>ROFF</name>
      <type>REAL</type>
      <default>1.0E6</default>
      <unit></unit>
      <min> ROFF&gt;RON</min>
      <comment> resistance when switch is open</comment>
    </parameter>
    <parameter>
      <name>TON</name>
      <type>REAL</type>
      <default>1.0E-6</default>
      <unit></unit>
      <min> &gt;=0.0</min>
      <comment> transition time for rising edge</comment>
    </parameter>
    <parameter>
      <name>TOFF</name>
      <type>REAL</type>
      <default>1.0E-6</default>
      <unit></unit>
      <min> &gt;=0.0</min>
      <comment> transition time for falling edge</comment>
    </parameter>
    <port>
      <port_id>terminal</port_id>
      <name>P</name>
      <port_type>ELECTRICAL</port_type>
      <comment> positive terminal</comment>
    </port>
    <port>
      <port_id>terminal</port_id>
      <name>M</name>
      <port_type>ELECTRICAL</port_type>
      <comment> negative terminal</comment>
    </port>
    <port>
      <port_id>signal</port_id>
      <name>C</name>
      <port_type>STD_LOGIC</port_type>
      <mode>in</mode>
      <comment> control signal</comment>
    </port>
  </interface>
</model>