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COMPONENTS numComps ;
[- compName modelName
[+ EEQMASTER macroName]
[+ SOURCE {NETLIST | DIST | USER | TIMING}]
[+ {FIXED pt orient | COVER pt orient | PLACED pt orient | UNPLACED}]
[+ HALO [SOFT] left bottom right top]
[+ ROUTEHALO haloDist minLayer maxLayer]
[+ WEIGHT weight]
[+ REGION regionName]
[+ PROPERTY {propName propVal} ...] ...
;] ...
END COMPONENTS
Defines design components, their location, and their associated attributes.
Some DEF COMPONENTS are physical-only objects, which are represented in OpenAccess in the block domain with no corresponding object in the module domain. Verilog exported from a database with physical-only objects has no data that corresponds to these objects. The physical-only COMPONENTS include:
The macroName corresponds to the cell name of the master that is electrically equivalent to the instance master.
The HALO maps to an oaAreaHalo, with the specified left, bottom, right, and top offsets. The SOFT parameter is a boolean attribute on the oaAreaHalo object.
FIXED, COVER, PLACED, and UNPLACED corresponds to the placement status of the instance.
The following table shows the correspondence between oaPlacementStatus and DEF placement.
| DEF placement | oaPlacementStatusEnum |
|---|---|
| PLACED | oacPlacedPlacementStatus |
| FIXED | oacFirmPlacementStatus |
| COVER | oacLockedPlacementStatus |
| UNPLACED | oacUnplacedPlacementStatus |
| - | oacNonePlacementStatus |
pt orient corresponds to the location and the orientation of the instance.
See PROPERTIES
regionName corresponds to the name of the region cluster (a cluster associated with at least one clusterBoundary object) that the instance belongs to. Use the following API to determine this information:
oaCluster *oaInst::getCluster() const oaCollection oaCluster::getBoundaries() const oaUInt4 oaBaseCollection::getCount() const oaCluster::getName(oaString &name) const
ROUTEHALO maps to the oaLayerHalo object for routing layers between minLayer and maxLayer. The haloDist value maps to the top, bottom, left, and right offsets associated with the oaLayerHalo object.
This information corresponds to the source attribute for the instance. The following table shows the correspondence between the DEF source and the oaSourceEnum value:
| DEF source | oaSourceEnum |
|---|---|
| NETLIST | oacNetlistSource |
| TIMING | oacTimingSource |
| DIST | oacDistSource |
| USER | oacUserSource |
| - | oacTestSource |
The weight value corresponds to the priority attribute for the instance, and it is found by using the following API:
oaUInt4 oaInst::getPriority() const
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All rights reserved.