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java.lang.Objectbyucc.jhdl.base.Nameable
byucc.jhdl.base.Node
byucc.jhdl.base.Cell
byucc.jhdl.base.Structural
byucc.jhdl.Logic.LogicGates
byucc.jhdl.Logic.LogicStatic
byucc.jhdl.Logic.Logic
byucc.jhdl.Xilinx.XilinxLatch
byucc.jhdl.Xilinx.Virtex2.ldcpe
LDCPE is a transparent data latch with data (D), asynchronous clear (CLR), asynchronous preset (PRE), and gate enable (GE). When CLR is High, it overrides the other inputs and resets the data (Q) output Low. When PRE is High and CLR is Low, it presets the data (Q) output High. Q reflects the data (D) input while the gate (G) input and gate enable (GE) are High and CLR and PRE are Low. The data on the D input during the High-to-Low gate transition is stored in the latch. The data on the Q output remains unchanged as long as G or GE remain Low. The latch is asynchronously cleared, output Low, when power is applied. Virtex2 and Spartan2 simulate power-on when global set/reset (GSR) is active. GSR defaults to active-High but can be inverted by adding an inverter in front of the GSR input of the STARTUP_SPARTAN2 or STARTUP_VIRTEX symbol. (Source: XACT Libraries Guide, Chapter 7 LDCPE, Xilinx Corporation, 1999.)
Field Summary | |
static CellInterface[] |
cell_interface
The port interface for: ldcpe clr : in (1) pre : in (1) ge : in (1) g : implicit (1) d : in (1) q : out (1) |
static java.lang.String |
cellname
The static cellname (netlist reference name) for ldcpe |
Fields inherited from class byucc.jhdl.Xilinx.XilinxLatch |
implicit_interface |
Fields inherited from class byucc.jhdl.Logic.Logic |
ABOVE, ALIGN_BOTTOM, ALIGN_CENTER, ALIGN_LEFT, ALIGN_LSB, ALIGN_MSB, ALIGN_RIGHT, ALIGN_TOP, BELOW, DOWN, EAST_OF, LEFT_OF, MAX_PACK, NORTH_OF, ON, ONTOP, ONTOP_OF, RIGHT_OF, SOUTH_OF, TOLEFT, TORIGHT, UNCONSTRAINED, UP, WEST_OF |
Fields inherited from class byucc.jhdl.Logic.LogicGates |
tech_mapper |
Fields inherited from class byucc.jhdl.base.Cell |
BOOLEAN, CELL_NAME_DECLARATION, CellInterfaceDeterminesUniqueNetlistStructure, DETERMINE_FROM_STRING, GENERICS_DECLARATION, IMPLICIT_INTERFACE_DECLARATION, INTEGER, INTERFACE_DECLARATION, LONG, PORT_IOS_DECLARATION, PORT_NAMES_DECLARATION, PORT_NET_NAMES_DECLARATION, PORT_PROPERTIES, PORT_WIDTHS_DECLARATION, SIGN_EXT, STRING, ZERO_PAD |
Constructor Summary | |
protected |
ldcpe(Node parent)
Used only by child classes to pass up the parent cell. |
|
ldcpe(Node parent,
ArgBlockList abl)
Constructs a new ldcpe, connecting its ports as given by the String-Wire pairs in the ArgBlockList . |
protected |
ldcpe(Node parent,
java.lang.String name)
Used only by child classes to pass up the parent cell and instance name. |
|
ldcpe(Node parent,
java.lang.String instanceName,
ArgBlockList abl)
Constructs a new ldcpe, connecting its ports as given by the String-Wire pairs in the ArgBlockList . |
|
ldcpe(Node parent,
java.lang.String instanceName,
java.lang.String s0,
Wire w0,
java.lang.String s1,
Wire w1,
java.lang.String s2,
Wire w2,
java.lang.String s3,
Wire w3,
java.lang.String s4,
Wire w4)
Constructs a new ldcpe, connecting each Wire to the port whose name is given by the accompanying String parameter
The initial String parameter specifies the instance name. |
|
ldcpe(Node parent,
java.lang.String instanceName,
java.lang.String s0,
Wire w0,
java.lang.String s1,
Wire w1,
java.lang.String s2,
Wire w2,
java.lang.String s3,
Wire w3,
java.lang.String s4,
Wire w4,
java.lang.String s5,
Wire w5)
Constructs a new ldcpe, connecting each Wire to the port whose name is given by the accompanying String parameter
Note: this includes enough wires for the implicit ports. |
|
ldcpe(Node parent,
java.lang.String s0,
Wire w0,
java.lang.String s1,
Wire w1,
java.lang.String s2,
Wire w2,
java.lang.String s3,
Wire w3,
java.lang.String s4,
Wire w4)
Constructs a new ldcpe, connecting each Wire to the port whose name is given by the accompanying String parameter |
|
ldcpe(Node parent,
java.lang.String s0,
Wire w0,
java.lang.String s1,
Wire w1,
java.lang.String s2,
Wire w2,
java.lang.String s3,
Wire w3,
java.lang.String s4,
Wire w4,
java.lang.String s5,
Wire w5)
Constructs a new ldcpe, connecting each Wire to the port whose name is given by the accompanying String parameter
Note: this includes enough wires for the implicit ports. |
|
ldcpe(Node parent,
java.lang.String instanceName,
Wire clr,
Wire pre,
Wire ge,
Wire d,
Wire q)
Constructs a new ldcpe. |
|
ldcpe(Node parent,
java.lang.String instanceName,
Wire clr,
Wire pre,
Wire ge,
Wire g,
Wire d,
Wire q)
Constructs a new ldcpe. |
|
ldcpe(Node parent,
Wire clr,
Wire pre,
Wire ge,
Wire d,
Wire q)
Constructs a new ldcpe. |
|
ldcpe(Node parent,
Wire clr,
Wire pre,
Wire ge,
Wire g,
Wire d,
Wire q)
Constructs a new ldcpe. |
Method Summary | |
boolean |
cellInterfaceDeterminesUniqueNetlistStructure()
When false, the default behavior of this method, each cell will list itself separately in a netlist, guaranteeing that the netlist will not have invalid data at the expense of a larger file-size. |
void |
clock()
Users define synchronous behavior in this method using standard JHDL constructs. |
java.lang.String |
getCellName()
Access the cell name associated with a derived class. |
static void |
main(java.lang.String[] argv)
|
void |
propagate()
Users defined propagatable behavior using standard JHDL constructs. |
void |
reset()
If you define a behavior, you must also define a reset method for resetting the synchonous part of your model. |
static void |
test()
|
int |
type()
This method returns one of the predefined schematic constants to identify the type of this cell. |
Methods inherited from class byucc.jhdl.Xilinx.XilinxLatch |
connectImplicitPorts, needsToBeAsynchronouslyScheduled |
Methods inherited from class byucc.jhdl.base.Node |
addObservable, addSimulatorCallback, checkAll, delete, getBuildingFlag, getChildren, getChildrenEnumeration, getInstanceName, getParent, getParentCell, getRelatives, getSystem, getWires, optimize, orphanAllowed, printAllChildren, printTree, removeSimulatorCallback, setDefaultClock |
Methods inherited from class byucc.jhdl.base.Nameable |
caseSensitivity, caseSensitivity, disableNameClashChecking, getFullName, getFullNameNoTestBench, getHierNameNoTestBench, getInstanceNo, getInstanceNumber, getLeafName, getLeafName, getRelativeName, getUserName, getUserName, hasUserSpecifiedName, isDescendantOf, setInstanceNumber |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final java.lang.String cellname
public static CellInterface[] cell_interface
Constructor Detail |
protected ldcpe(Node parent)
parent
- Parent cellprotected ldcpe(Node parent, java.lang.String name)
parent
- Parent cellname
- Instance name of the cellpublic ldcpe(Node parent, Wire clr, Wire pre, Wire ge, Wire d, Wire q)
parent
- The parent Cell
to the ldcpeclr
- The Wire
to be connected to input port clrpre
- The Wire
to be connected to input port prege
- The Wire
to be connected to input port ged
- The Wire
to be connected to input port dq
- The Wire
to be connected to output port qpublic ldcpe(Node parent, java.lang.String instanceName, Wire clr, Wire pre, Wire ge, Wire d, Wire q)
String
parameter specifies the instance name.
parent
- The parent Cell
to the ldcpeinstanceName
- The instance name of the ldcpeclr
- The Wire
to be connected to input port clrpre
- The Wire
to be connected to input port prege
- The Wire
to be connected to input port ged
- The Wire
to be connected to input port dq
- The Wire
to be connected to output port qpublic ldcpe(Node parent, Wire clr, Wire pre, Wire ge, Wire g, Wire d, Wire q)
parent
- The parent Cell
to the ldcpeclr
- The Wire
to be connected to input port clrpre
- The Wire
to be connected to input port prege
- The Wire
to be connected to input port geg
- The Wire
to be connected to implicit port gd
- The Wire
to be connected to input port dq
- The Wire
to be connected to output port qpublic ldcpe(Node parent, java.lang.String instanceName, Wire clr, Wire pre, Wire ge, Wire g, Wire d, Wire q)
String
parameter specifies the instance name.
parent
- The parent Cell
to the ldcpeinstanceName
- The instance name of the ldcpeclr
- The Wire
to be connected to input port clrpre
- The Wire
to be connected to input port prege
- The Wire
to be connected to input port geg
- The Wire
to be connected to implicit port gd
- The Wire
to be connected to input port dq
- The Wire
to be connected to output port qpublic ldcpe(Node parent, java.lang.String s0, Wire w0, java.lang.String s1, Wire w1, java.lang.String s2, Wire w2, java.lang.String s3, Wire w3, java.lang.String s4, Wire w4)
Wire
to the port whose name is given by the accompanying String
parameter
parent
- The parent Cell
to the ldcpes0
- The name of the port to which w0 will be connectedw0
- The Wire
to be connected to the port specified by s0s1
- The name of the port to which w1 will be connectedw1
- The Wire
to be connected to the port specified by s1s2
- The name of the port to which w2 will be connectedw2
- The Wire
to be connected to the port specified by s2s3
- The name of the port to which w3 will be connectedw3
- The Wire
to be connected to the port specified by s3s4
- The name of the port to which w4 will be connectedw4
- The Wire
to be connected to the port specified by s4public ldcpe(Node parent, java.lang.String instanceName, java.lang.String s0, Wire w0, java.lang.String s1, Wire w1, java.lang.String s2, Wire w2, java.lang.String s3, Wire w3, java.lang.String s4, Wire w4)
Wire
to the port whose name is given by the accompanying String
parameter
The initial String
parameter specifies the instance name.
parent
- The parent Cell
to the ldcpeinstanceName
- The instance name of the ldcpes0
- The name of the port to which w0 will be connectedw0
- The Wire
to be connected to the port specified by s0s1
- The name of the port to which w1 will be connectedw1
- The Wire
to be connected to the port specified by s1s2
- The name of the port to which w2 will be connectedw2
- The Wire
to be connected to the port specified by s2s3
- The name of the port to which w3 will be connectedw3
- The Wire
to be connected to the port specified by s3s4
- The name of the port to which w4 will be connectedw4
- The Wire
to be connected to the port specified by s4public ldcpe(Node parent, java.lang.String s0, Wire w0, java.lang.String s1, Wire w1, java.lang.String s2, Wire w2, java.lang.String s3, Wire w3, java.lang.String s4, Wire w4, java.lang.String s5, Wire w5)
Wire
to the port whose name is given by the accompanying String
parameter
Note: this includes enough wires for the implicit ports.
parent
- The parent Cell
to the ldcpes0
- The name of the port to which w0 will be connectedw0
- The Wire
to be connected to the port specified by s0s1
- The name of the port to which w1 will be connectedw1
- The Wire
to be connected to the port specified by s1s2
- The name of the port to which w2 will be connectedw2
- The Wire
to be connected to the port specified by s2s3
- The name of the port to which w3 will be connectedw3
- The Wire
to be connected to the port specified by s3s4
- The name of the port to which w4 will be connectedw4
- The Wire
to be connected to the port specified by s4s5
- The name of the port to which w5 will be connectedw5
- The Wire
to be connected to the port specified by s5public ldcpe(Node parent, java.lang.String instanceName, java.lang.String s0, Wire w0, java.lang.String s1, Wire w1, java.lang.String s2, Wire w2, java.lang.String s3, Wire w3, java.lang.String s4, Wire w4, java.lang.String s5, Wire w5)
Wire
to the port whose name is given by the accompanying String
parameter
Note: this includes enough wires for the implicit ports.
The initial String
parameter specifies the instance name.
parent
- The parent Cell
to the ldcpeinstanceName
- The instance name of the ldcpes0
- The name of the port to which w0 will be connectedw0
- The Wire
to be connected to the port specified by s0s1
- The name of the port to which w1 will be connectedw1
- The Wire
to be connected to the port specified by s1s2
- The name of the port to which w2 will be connectedw2
- The Wire
to be connected to the port specified by s2s3
- The name of the port to which w3 will be connectedw3
- The Wire
to be connected to the port specified by s3s4
- The name of the port to which w4 will be connectedw4
- The Wire
to be connected to the port specified by s4s5
- The name of the port to which w5 will be connectedw5
- The Wire
to be connected to the port specified by s5public ldcpe(Node parent, ArgBlockList abl)
String-Wire
pairs in the ArgBlockList
. Any generic assignments are made through String-String
pairs in the ArgBlockList
.
parent
- The parent Cell
to the ldcpeabl
- The list of String-Wire
pairs for port assignments, and String-String
pairs for generic assignments.public ldcpe(Node parent, java.lang.String instanceName, ArgBlockList abl)
String-Wire
pairs in the ArgBlockList
. Any generic assignments are made through String-String
pairs in the ArgBlockList
.
The initial String
parameter is the instance name.
parent
- The parent Cell
to the ldcpeinstanceName
- The instance name of the ldcpeabl
- The list of String-Wire
pairs for port assignments, and String-String
pairs for generic assignments.Method Detail |
public java.lang.String getCellName()
Cell
getCellName
in class Cell
public final void clock()
Structural
clock
in interface Clockable
clock
in class Structural
public void reset()
Structural
reset
in interface Clockable
reset
in class Structural
public final void propagate()
Structural
propagate
in interface byucc.jhdl.base.Propagateable
propagate
in class Structural
public final boolean cellInterfaceDeterminesUniqueNetlistStructure()
Cell
cellInterfaceDeterminesUniqueNetlistStructure
in class Cell
public int type()
PreDefinedSchematic
type
in interface PreDefinedSchematic
public static void main(java.lang.String[] argv)
public static void test()
|
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