byucc.jhdl.Xilinx.Virtex2
Class iopad

java.lang.Object
  byucc.jhdl.base.Nameable
      byucc.jhdl.base.Node
          byucc.jhdl.base.Cell
              byucc.jhdl.base.VisibleAnnotation
                  byucc.jhdl.Xilinx.Virtex2.iopad

All Implemented Interfaces:

BooleanFlags, PreDefinedSchematic, TreeListable

Deprecated. iopads are not necessary. All that is necessary is an ibuf, and an obuft, with the input wire assigned to the perscribed pin.

public final class iopad

extends VisibleAnnotation

implements PreDefinedSchematic

IOPAD, IOPAD4, IOPAD8, and IOPAD16 are single and multiple input/output pads. The IOPAD is a connection point from a device pin, used as a bidirectional signal, to a PLD device. The IOPAD is connected internally to an input/output block (IOB), which is configured by the software as a bidirectional block. Bidirectional blocks can consist of any combinations of a 3-state output buffer (such as OBUFT or OFDE) and any available input buffer (such as IBUF or IFD). Refer to the appropriate CAE tool interface user guide for details on assigning pin location and identification. Note: The LOC attribute cannot be used on IOPAD multiples. (Source: XACT Libraries Guide, Chapter 6, IOPAD, Xilinx Corporation,

Field Summary

static CellInterface[]	cell_interface Deprecated. The port interface for: iopad io : inout (1)
static java.lang.String	cellname Deprecated. The static cellname (netlist reference name) for iopad

Fields inherited from class byucc.jhdl.base.Cell

BOOLEAN, CELL_NAME_DECLARATION, CellInterfaceDeterminesUniqueNetlistStructure, DETERMINE_FROM_STRING, GENERICS_DECLARATION, implicit_interface, 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

Fields inherited from interface byucc.jhdl.apps.Viewers.Schematic.PreDefinedSchematic

PreDefinedSchematic_ADD, PreDefinedSchematic_ADDSUB, PreDefinedSchematic_AND, PreDefinedSchematic_BUF, PreDefinedSchematic_CONST, PreDefinedSchematic_GEN, PreDefinedSchematic_GND, PreDefinedSchematic_INC, PreDefinedSchematic_INV, PreDefinedSchematic_MUX, PreDefinedSchematic_NAND, PreDefinedSchematic_NOR, PreDefinedSchematic_OR, PreDefinedSchematic_PULLDOWN, PreDefinedSchematic_PULLUP, PreDefinedSchematic_REG, PreDefinedSchematic_SHL, PreDefinedSchematic_SHR, PreDefinedSchematic_TBUF, PreDefinedSchematic_VCC, PreDefinedSchematic_XNOR, PreDefinedSchematic_XOR

Fields inherited from interface byucc.jhdl.base.BooleanFlags

ANTECEDANT_IS_BEHAVIORALLY_MODELED, ASYNC_PORT, ASYNCHRONOUS_RESOLVED, ATOMICALLY_PLACEABLE, ATOMICALLY_UNMAPPABLE, BEHAVIORALLY_MODELED_BRANCH, CLK_PORT, CLOCK_METHOD_IMPLEMENTED_BY_USER, CLOCK_METHOD_IS_DISABLED, CLOCKABLE_IS_SCHEDULED, DANGLING_IS_OK, DELETE_MARK, FATAL_BUILD_ERROR_OCCURED, HAS_BEEN_TRACED, HAS_USER_SPECIFIED_NAME, HWUPDATE, IMPLICIT_PORT, IN_CLK_PORT, IN_PORT, INOUT_PORT, IO_TYPE_FLAGS, IS_BEHAVIORALLY_MODELED, IS_ON_BUILD_STACK, IS_ON_PROP_LIST, IS_PLACED, METHODS_IMPLEMENTED_BY_USER, NETLISTABLE, ORIG_WIRE_IS_ATOMIC, OUT_PORT, PLACEMENT_IS_LOCKED, PROPAGATE_METHOD_IMPLEMENTED_BY_USER, PROPAGATE_METHOD_IS_DISABLED, RECURSION_FLAG, RESET_METHOD_IMPLEMENTED_BY_USER, SIMULATEABLE, SOURCELESS_IS_OK, SYNC_PORT, VISIBLE

Constructor Summary

protected	iopad(Node parent) Deprecated. Used only by child classes to pass up the parent cell.
	iopad(Node parent, ArgBlockList abl) Deprecated. Constructs a new iopad, connecting its ports as given by the String-Wire pairs in the ArgBlockList.
protected	iopad(Node parent, java.lang.String name) Deprecated. Used only by child classes to pass up the parent cell and instance name.
	iopad(Node parent, java.lang.String instanceName, ArgBlockList abl) Deprecated. Constructs a new iopad, connecting its ports as given by the String-Wire pairs in the ArgBlockList.
	iopad(Node parent, java.lang.String instanceName, java.lang.String s0, Wire w0) Deprecated. Constructs a new iopad, connecting each Wire to the port whose name is given by the accompanying String parameter The initial String parameter specifies the instance name.
	iopad(Node parent, java.lang.String instanceName, Wire io) Deprecated. Constructs a new iopad.
	iopad(Node parent, Wire io) Deprecated. Constructs a new iopad.

Method Summary

boolean	cellInterfaceDeterminesUniqueNetlistStructure() Deprecated. 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.
java.lang.String	getCellName() Deprecated. Access the cell name associated with a derived class.
static void	main(java.lang.String[] argv) Deprecated.
static void	test() Deprecated.
int	type() Deprecated. This method returns one of the predefined schematic constants to identify the type of this cell.

Methods inherited from class byucc.jhdl.base.VisibleAnnotation

hasBehaviorInClockMethod, hasBehaviorInPropagateMethod, needsToBeAsynchronouslyScheduled

Methods inherited from class byucc.jhdl.base.Cell

addPort, addPorts, addProperties, addProperties, addProperty, addProperty, addProperty, addProperty, antecedantIsBehaviorallyModeled, antecedantIsBehaviorallyModeled, behavioralModelIsAvailable, bind, bind, bind, bind, clk, connect, connectAllWires, connectOptional, constructSubCell, constructSubCellNoImplicitPorts, defaultSimulationModelIsBehavioral, disableAllBehavioralModels, disableBehavioralModel, enableBehavioralModel, getArgument, getAttachedPort, getAttachedWire, getAttachedWireNoException, getCellNetlist, getCellNetList, getCellNetlist, getCellNetlist, getDescendents, getFlatNetlist, getFlatNetlistableChildren, getGeneric, getHeight, getNetlistableChildren, getPlacementInfo, getPortProperties, getPortRecord, getPortRecords, getProperties, getProperty, getPropertyValue, getSinkWires, getSourceWires, getSubCellClass, getUniqueCellName, getWidth, getX, getY, hasBeenTraced, hasBeenTraced, hasPort, hasPorts, in, in, inout, inout, isAsynchronouslyScheduled, isAsynchronouslyScheduled, isAsynchronousSourceSinkResolved, isBehaviorallyModeled, isBehaviorallyModeledBranch, isInput, isLeafCell, isNetlistable, isNetlistable, isNetlistablePort, isNetlistLeaf, isNotNetlistable, isNotNetlistablePort, isNotVisible, isOutput, isPlaceable, isPlaceable, isPlaced, isPlaced, isPlacementLocked, isRoot, isSimulateable, isSimulateable, isSink, isSource, isVisible, isVisible, join, lockPlacement, nc, out, out, param, popHierarchy, port, port, port, postorderCheck, preorderCheck, pushHierarchy, pushHierarchy, pushHierarchy, pushHierarchy, pushHierarchyNoImplicitPorts, pushHierarchyNoImplicitPorts, removeAllUnconnectedPorts, removePort, removeProperty, replaceProperty, replaceProperty, resetBehavioralModelsToDefaults, setAsynchronousSourceSinkResolved, setGeneric, setHeight, setNotNetlistable, setNotNetlistable, setNotVisible, setNotVisible, setPlacementInfo, setPortNotNetlistable, setPortNotNetlistable, setProperty, setWidth, subClassDelete, toString, uniquifyCell, userDefinedClockCount, verifyAndCleanup

Methods inherited from class byucc.jhdl.base.Node

addObservable, addSimulatorCallback, checkAll, delete, getBuildingFlag, getChildren, getChildrenEnumeration, getDefaultClock, 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

cellname

public static final java.lang.String cellname

Deprecated.

The static cellname (netlist reference name) for iopad

See Also:

Constant Field Values

cell_interface

public static CellInterface[] cell_interface

Deprecated.

The port interface for: iopad io : inout (1)

Constructor Detail

iopad

protected iopad(Node parent)

Deprecated.

Used only by child classes to pass up the parent cell.

Parameters:

parent - Parent cell

iopad

protected iopad(Node parent,
                java.lang.String name)

Deprecated.

Used only by child classes to pass up the parent cell and instance name.

Parameters:

parent - Parent cell

name - Instance name of the cell

iopad

public iopad(Node parent,
             Wire io)

Deprecated.

Constructs a new iopad.

Parameters:

parent - The parent Cell to the iopad

io - The Wire to be connected to bidirectional port io

iopad

public iopad(Node parent,
             java.lang.String instanceName,
             Wire io)

Deprecated.

Constructs a new iopad. The initial String parameter specifies the instance name.

Parameters:

parent - The parent Cell to the iopad

instanceName - The instance name of the iopad

io - The Wire to be connected to bidirectional port io

iopad

public iopad(Node parent,
             java.lang.String instanceName,
             java.lang.String s0,
             Wire w0)

Deprecated.

Constructs a new iopad, connecting each Wire to the port whose name is given by the accompanying String parameter The initial String parameter specifies the instance name.

Parameters:

parent - The parent Cell to the iopad

instanceName - The instance name of the iopad

s0 - The name of the port to which w0 will be connected

w0 - The Wire to be connected to the port specified by s0

iopad

public iopad(Node parent,
             ArgBlockList abl)

Deprecated.

Constructs a new iopad, connecting its ports as given by the String-Wire pairs in the ArgBlockList. Any generic assignments are made through String-String pairs in the ArgBlockList.

Parameters:

parent - The parent Cell to the iopad

abl - The list of String-Wire pairs for port assignments, and String-String pairs for generic assignments.

iopad

public iopad(Node parent,
             java.lang.String instanceName,
             ArgBlockList abl)

Deprecated.

Constructs a new iopad, connecting its ports as given by the 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.

Parameters:

parent - The parent Cell to the iopad

instanceName - The instance name of the iopad

abl - The list of String-Wire pairs for port assignments, and String-String pairs for generic assignments.

Method Detail

getCellName

public java.lang.String getCellName()

Deprecated.

Description copied from class: Cell

Access the cell name associated with a derived class. The cellname field is lazily evaluated on the first call of this method. Can be overriden to make cellname different by instance. If the field does not exist, this defaults to the classname.

Overrides:

getCellName in class Cell

Returns:

the cell name associated with a derived class, null if not declared.

cellInterfaceDeterminesUniqueNetlistStructure

public final boolean cellInterfaceDeterminesUniqueNetlistStructure()

Deprecated.

Description copied from class: Cell

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. Overriding this method to return true allows JHDL to save memory and netlists to be smaller by sharing the netlist structures that are guaranteed to be identical. NOTE: Do not override this unless every possible condition responsible for structural differences in a class (types and amount of children cells created, and arrangements of wires connected to ports) is included in the cellInterface[] of that class.

Overrides:

cellInterfaceDeterminesUniqueNetlistStructure in class Cell

Returns:

false if not overridden, preventing all memory sharing

type

public int type()

Deprecated.

Description copied from interface: PreDefinedSchematic

This method returns one of the predefined schematic constants to identify the type of this cell.

Specified by:

type in interface PreDefinedSchematic

Returns:

A predefined schematic constant

main

public static void main(java.lang.String[] argv)

Deprecated.

test

public static void test()

Deprecated.