lxUpdateBinding

lxUpdateBinding(
d_layCV
[ ?schCV d_schCV ]
[ ?nameOnly { t | nil } ]
[ ?currentLevel { t | nil } ]
[ ?extract { t | nil } ]
[ ?clearConn { t | nil } ]
[ ?extractStopLevel [0-32] ]
[ ?preserveUserBindings { t | nil } ]
[ ?preserveLayoutHierarchy { t | nil } ]
[ ?flattenLayoutCreate { Synchronized Family | Grouped Objects| Free Objects } ]
[ ?bindingFile t_fileName ]
[ ?crossRefFile t_fileName ]
[ ?extractedNetlistFile t_fileName ]
[ ?PVSRulesFile t_fileName ]
[ ?PVSScale n_PVSScale ]
[ ?correctMaster { t | nil } ]
[ ?ignoreRouteCells { t | nil } ]
[ ?ignoreDummies { t | nil } ]
[ ?preserveExistingBindings { t | nil } ]
[ ?hierarchical { t | nil } ]
[ ?allCellsInDesign { t | nil } ]
[ ?createTransparent { t | nil } ]
[ ?createPinsFromLabels { t | nil } ]
[ ?checkDuplicateObjects { t | nil } ]
[ ?removeDuplicateObjects { t | nil } ]
[ ?readOnlyLayout  { t | nil } ]
)
=> 0 – 100 / -1

Description

Improves the binding between the schematic and the layout by setting options that control how the connectivity, the manual bindings, and the design hierarchy is processed. If a log file name is specified for the hierSummaryLogFileName environment variable, the SKILL function prints the summary information to the specified log file, in addition to printing the information to the default Virtuoso log file

Arguments

d_layCV
	The database ID of the layout cellview for which the bindings are to be improved.
d_schCV
	The database ID of the schematic cellview for which the bindings are to be improved.
`?nameOnly`
	Binds by name, if true. The default is `nil`, which means instances are bound based on connectivity.
`?currentLevel`
	Binds at the current level, if true. The default is `t`. If set to `nil`, the schematic and layout hierarchies are flattened to find leaf-level bindings. The Update Binding command is run hierarchically for the current layout.
`?extract`
	Performs physical connectivity extraction to ensure that the layout connectivity is up-to-date. The default is `t`. The extraction can only be disabled if `currentLevel`is set to `t` and `clearConn` is set to `nil`.
`?clearConn`
	Removes the logical connectivity in the layout cellview. The default is `nil`.
`?extractStopLevel`
	Specifies the hierarchy depth for extraction. The default is `0`. The extraction depth must be an integer between `0` and `32`.
`?preserveUserBindings`
	Preserves the user-defined bindings created by using Define Device Correspondence. The default is `t`. If set to `nil`, all the user-defined bindings will be deleted.
`?preserveLayoutHierarchy`
	If set to `t`, the layout hierarchy is preserved and complex bindings are created for hierarchy mismatches between the schematic and the layout. If `createTransparent` is set to `t`, the `preserveLayoutHierarchy` argument can set instances to be transparent instead of creating complex bindings. If `preserveLayoutHierarchy` is set to `nil`, layout instances are flattened to match the schematic hierarchy. The default is `nil`.
`?flattenLayoutCreate`
	If the layout hierarchy is not preserved, optionally creates fig groups or synchronous clones for flattened layout instances. The default is "`Synchronized Family`". The value that you specify for this argument should be enclosed in quotation marks, such as ("`Synchronized Family`" \| "`Grouped Objects`" \| "`Free Objects`").
`?bindingFile t_fileName`
	Path to the binding file that is created by the `lxCreateBndFile` SKILL function.
`?crossRefFile t_fileName`
	Path to the PVS instance cross-reference file to be used for creating the binding file. PVS creates a .`ixf` cross-reference file in the `svdb` directory of the PVS run directory when using the PVS Create QRC Input Data option.
`?extractedNetlistFile` t_fileName
	Path to the extracted layout CDL netlist file to be used for creating the binding file. PVS creates a .`net` extracted netlist file in the `svdb` directory of the PVS run directory when using the PVS Create QRC Input Data option. If a `.net` file is unavailable, the binding file can be created using a `.spi` file.
`?PVSRulesFile` t_fileName
	Path to the PVS rule file to be used for creating the binding file if the scale at which PVS was run is different from the layout scale. If the scale at which PVS was run is the same as the layout scale, the binding file can be created, as usual, based only on the instance cross reference file and the extracted netlist file.
`?PVSScale` n_PVSScale
	Specifies the floating point input scale for running PVS. By default, the input_scale is `0`, which means that `dbuPerUu` for the layout is used. But, if the PVS input scale is different from that of the layout, and the PVS rule file is specified, the PVS rule deck is parsed to determine the appropriate value. Alternatively, you can specify the PVS input scale to be used.
`?correctMaster`
	Binds a schematic and layout instance if the layout instance has a master that corresponds to the physical binding defined in the CPH window. If the current physical binding does not match the bound layout instance, the SKILL function updates the physical bindings in CPH. The physical bindings in CPH can only be updated when the bindings are not already in use. The default is `t`.
`?ignoreRouteCells`
	Adds an `ignore` property on layout instances that are identified as route cells to ignore the instances for binding. Route cells are identified as cells that have no devices using extract stop layers. For cases when no extract stop layers are defined, route cells are identified as the ones that have no terminals but only metal or cut shapes.
`?ignoreDummies`
	Ignores any unbound, potential dummy instances that are identified during a binding run.
`?preserveExistingBindings`
	Preserves not only the user bindings but also any existing bindings, if set to `t`. The default is `nil`. If set to `nil`, all previous bindings, including any user-defined bindings previously added, will be deleted. For the user-defined bindings to be deleted when `preserveExistingBindings` is set to `nil`, `preserveUserBindings` must also be set to `nil`.
`?`hierarchical
	Runs the Update Binding command at current level for each layout cellview in the current layout design hierarchy. The default value is `nil`. When set to `t`: The Update Binding command is run at the current level for each layout and schematic cellview pair found in the design hierarchy. At the end of the command, the XL status is displayed for each layout cellview with connectivity reference, and a list of layout cellviews with no connectivity reference is also displayed. The XL status provides information on: Number of bound, unbound, and ungenerated instances Master, parameter, and connectivity differences List of cellviews identified as leafs The Update Binding command prints the summary information to the specified log file, in addition to printing the information to the default Virtuoso log file, when a log file name is specified for the hierSummaryLogFileName environment variable.
`?allCellsInDesign`
	Binds all non-leaf cellviews at current level by using their corresponding connectivity reference. The default is `nil`. This argument provides the same functionality as `?hierarchical`, which is being supported to allow backward compatibility.
`?createTransparent`
	Preserves the layout hierarchy and sets instances as transparent, so that bindings between the leaf-level instances within the instance master and their schematic instances can be created.
`?createPinsFromLabels`
	Creates pins from labels, if the label text or text display matches an ungenerated schematic terminal name. createPinsFromLabels
`?checkDuplicateObjects`
	Checks and reports duplicate instances, shapes, and vias in the layout cellview.
`?removeDuplicateObjects`
	Checks and removes duplicate instances, shapes, and vias from the layout cellview.
`?readOnlyLayout`	When set to `t`, runs on a read-only layout without DM system prompting the user to change from read-only to edit mode. The default is `nil`.

Value Returned

`0-100`	The average compliance.
`nil`	The check failed.

Example 1

lxUpdateBinding(layCV ?schCV schCV ?clearConn t ?preserveUserBindings nil ?preserveExistingBindings nil ?preserveLayoutHierarchy nil ?flattenLayoutCreate "Group" ?bindingFile "./inv.bnd" ?hierarchical nil)

Updates the binding between the schematic and layout cellviews using the binding file "./inv.bnd", Deletes the logical connectivity and user bindings, and flattens the layout hierarchy. For any flattened layout instances, adds the flattened instances to a figGroup.

lxUpdateBinding(layCV ?schCV schCV ?preserveLayoutHierarchy t ?crossRefFile "./inv.ixf" ?extractedNetlistFile "./inv.net)

Updates the binding between the schematic and layout cellviews using the PVS instance cross-reference file "./inv.inf" and the extracted layout CDL netlist file "inv.net", preserving the logical connectivity, user bindings, and the layout hierarchy.

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Virtuoso Layout Suite SKILL ReferenceProduct Version IC23.1, November 2023