| <html><head><title>ovm_driver #(REQ,RSP)</title><link rel="stylesheet" type="text/css" href="../../styles/main.css"><script language=JavaScript src="../../javascript/main.js"></script></head><body class="FramedContentPage" onLoad="NDOnLoad()"><script language=JavaScript><!-- |
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| <div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="ovm_driver#(REQ,RSP)" href="../../../../src/methodology/ovm_driver.svh">ovm_driver #(REQ,RSP)</a></h1><div class=CBody><p>The base class for drivers that initiate requests for new transactions via a ovm_seq_item_pull_port. The ports are typically connected to the exports of an appropriate sequencer component.</p><p>This driver operates in pull mode. Its ports are typically connected to the corresponding exports in a pull sequencer as follows:</p><blockquote><pre>driver.seq_item_port.connect(sequencer.seq_item_export); |
| driver.rsp_port.connect(sequencer.rsp_export);</pre></blockquote><p>The <i>rsp_port</i> needs connecting only if the driver will use it to write responses to the analysis export in the sequencer.</p> |
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| <div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable> |
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| <tr class="SClass"><td colspan=2 class=SEntry><a href="#ovm_driver#(REQ,RSP)" id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">ovm_driver #(REQ,RSP)</a></td></tr> |
| <tr class=SMain><td colspan=2 class=SWideDescription>The base class for drivers that initiate requests for new transactions via a ovm_seq_item_pull_port. </td></tr> |
| <tr class="SHierarchy SIndent1 "><td colspan=2 class="SEntry SIndent1">Class Hierarchy</td><tr><tr class="SPrototype SIndent1"><td colspan=2 class=SDescription><div class=ClassHierarchy> |
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| <tr><td><div class=CHParent><div class=CHEntry><a href="../base/ovm_object-svh.html#ovm_object" class=LClass id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">ovm_object</a></div></div></td></tr> |
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| <tr><td><div class=CHParent><div class=CHEntry><a href="../base/ovm_report_object-svh.html#ovm_report_object" class=LClass id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">ovm_report_object</a></div></div></td></tr> |
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| <tr><td><div class=CHParent><div class=CHEntry><a href="../base/ovm_component-svh.html#ovm_component" class=LClass id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">ovm_component</a></div></div></td></tr> |
| <tr><td><div class=CHCurrent><div class=CHEntry>ovm_driver#(REQ,RSP)</div></div></td></tr></table> |
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| <td colspan=2 class="SEntry SIndent1">Class Declaration</td><tr><tr class="SPrototype SIndent1"><td colspan=2 class=SDescription><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters colspan=5>class ovm_driver #(</td></tr><tr><td> </td><td class=PType nowrap>type </td><td class=PParameter nowrap>REQ</td><td class=PDefaultValuePrefix> = </td><td class=PDefaultValue width=100%>ovm_sequence_item,</td></tr><tr><td> </td><td class=PType nowrap>type </td><td class=PParameter nowrap>RSP</td><td class=PDefaultValuePrefix> = </td><td class=PDefaultValue width=100%>REQ</td></tr><tr><td class=PAfterParameters colspan=5>) extends ovm_component</td></tr></table></td></tr></table></blockquote></td></tr> |
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| <tr class="SGroup SIndent1"><td class=SEntry><a href="#ovm_driver#(REQ,RSP).Ports" >Ports</a></td><td class=SDescription></td></tr> |
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| <tr class="SPort SIndent2"><td class=SEntry><a href="#ovm_driver#(REQ,RSP).seq_item_port" >seq_item_port</a></td><td class=SDescription>Derived driver classes should use this port to request items from the sequencer. </td></tr> |
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| <tr class="SPort SIndent2 SMarked"><td class=SEntry><a href="#ovm_driver#(REQ,RSP).rsp_port" >rsp_port</a></td><td class=SDescription>This port provides an alternate way of sending responses back to the originating sequencer. </td></tr> |
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| <tr class="SGroup SIndent1"><td class=SEntry><a href="#ovm_driver#(REQ,RSP).Methods" >Methods</a></td><td class=SDescription></td></tr> |
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| <tr class="SMethod SIndent2"><td class=SEntry><a href="#ovm_driver#(REQ,RSP).new" id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">new</a></td><td class=SDescription>Creates and initializes an instance of this class using the normal constructor arguments for <a href="../base/ovm_component-svh.html#ovm_component" class=LClass id=link6 onMouseOver="ShowTip(event, 'tt3', 'link6')" onMouseOut="HideTip('tt3')">ovm_component</a>: <i>name</i> is the name of the instance, and <i>parent</i> is the handle to the hierarchical parent, if any.</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div> |
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| <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="ovm_driver#(REQ,RSP).Ports" href="../../../../src/methodology/ovm_driver.svh">Ports</a></h3></div></div> |
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| <div class="CPort"><div class=CTopic><h3 class=CTitle><a name="ovm_driver#(REQ,RSP).seq_item_port" href="../../../../src/methodology/ovm_driver.svh">seq_item_port</a></h3><div class=CBody><p>Derived driver classes should use this port to request items from the sequencer. They may also use it to send responses back.</p></div></div></div> |
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| <div class="CPort"><div class=CTopic><h3 class=CTitle><a name="ovm_driver#(REQ,RSP).rsp_port" href="../../../../src/methodology/ovm_driver.svh">rsp_port</a></h3><div class=CBody><p>This port provides an alternate way of sending responses back to the originating sequencer. Which port to use depends on which export the sequencer provides for connection.</p></div></div></div> |
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| <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="ovm_driver#(REQ,RSP).Methods" href="../../../../src/methodology/ovm_driver.svh">Methods</a></h3></div></div> |
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| <div class="CMethod"><div class=CTopic><h3 class=CTitle><a name="ovm_driver#(REQ,RSP).new" href="../../../../src/methodology/ovm_driver.svh">new</a></h3><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function new (</td><td class=PType nowrap>string </td><td class=PParameter nowrap>name,</td></tr><tr><td></td><td class=PType nowrap>ovm_component </td><td class=PParameter nowrap>parent</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><div class=CBody><p>Creates and initializes an instance of this class using the normal constructor arguments for <a href="../base/ovm_component-svh.html#ovm_component" class=LClass id=link7 onMouseOver="ShowTip(event, 'tt3', 'link7')" onMouseOut="HideTip('tt3')">ovm_component</a>: <i>name</i> is the name of the instance, and <i>parent</i> is the handle to the hierarchical parent, if any.</p></div></div></div> |
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| <div class=CToolTip id="tt1"><div class=CClass><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>virtual class ovm_object extends ovm_void</td></tr></table></blockquote>The ovm_object class is the base class for all OVM data and hierarchical classes. </div></div><div class=CToolTip id="tt2"><div class=CClass><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>class ovm_report_object extends ovm_object</td></tr></table></blockquote>The ovm_report_object provides an interface to the OVM reporting facility. </div></div><div class=CToolTip id="tt3"><div class=CClass><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>virtual class ovm_component extends ovm_report_object</td></tr></table></blockquote>The ovm_component class is the root base class for OVM components. </div></div><div class=CToolTip id="tt4"><div class=CClass><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>class ovm_driver #(</td><td class=PType nowrap>type </td><td class=PParameter nowrap>REQ</td><td class=PDefaultValuePrefix> = </td><td class=PDefaultValue width=100%>ovm_sequence_item,</td></tr><tr><td></td><td class=PType nowrap>type </td><td class=PParameter nowrap>RSP</td><td class=PDefaultValuePrefix> = </td><td class=PDefaultValue width=100%>REQ</td><td class=PAfterParameters nowrap>) extends ovm_component</td></tr></table></td></tr></table></blockquote>The base class for drivers that initiate requests for new transactions via a ovm_seq_item_pull_port. </div></div><div class=CToolTip id="tt5"><div class=CMethod><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function new (</td><td class=PType nowrap>string </td><td class=PParameter nowrap>name,</td></tr><tr><td></td><td class=PType nowrap>ovm_component </td><td class=PParameter nowrap>parent</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Creates and initializes an instance of this class using the normal constructor arguments for ovm_component: <i>name</i> is the name of the instance, and <i>parent</i> is the handle to the hierarchical parent, if any.</div></div><!--END_ND_TOOLTIPS--> |
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