Product Documentation
Virtuoso Automated Chip Assembly Routing Flow Guide
Product Version IC23.1, October 2023

5


Chip Assembly Routing Flow Environment Variables

The chip assembly routing flow environment variables provides information on the names, descriptions, and graphical user interface equivalents. These environment variables are used to set default values for various chip assembly routing options in the Routing assistant.

You can set them either from CIW or load from cdsenv file through a SKILL function. For example, envLoadFile("~/.cdsenv").

Only the public environment variables are documented and supported for public use. All other chip assembly routing environment variables, regardless of their name or prefix, are private and undocumented and are subject to change at any time.

The following list provides the names of the chip assembly routing environment variables.

Chip Assembly Routing

check_displayLog

check_existingDRCs

check_generateMarkers

check_nets

check_overwriteLog

check_supplyNets

postRouteTrigger

preRouteTrigger

results_nets

results_netsWithin

results_supplyNets

route_defaultRoutedView

route_deletePreroutes

route_deleteShieldTies

route_deleteShields

route_deleteSpines

route_deleteWiresAndVias

route_detailRoute

route_detailRoutePasses

route_displayLog

route_generateShield

route_globalRoute

route_globalRoutePasses

route_nets

route_netsWithin

route_optimizeRoute

route_optimizeRoutePasses

route_overwriteLog

route_removeShortsAndDRCs

route_removeShortsAndDRCsPasses

route_routedLoc

route_saveRoutingOnly

route_supplyNets

route_tieShield

setup_checkDRCsAfterRouting

setup_coverObstructions

setup_cutKeepouts

setup_extractConnectivityAfterRouting

setup_insertTrim

setup_offsetVia

setup_pinDirectionWidth

setup_pinFit

setup_postRouteCmdFileName

setup_preRouteCmdFileName

setup_protectExistingRouting

setup_rotateVia

setup_taper

setup_taperDown

setup_taperUp

setup_usePostRouteCmdFile

setup_usePreRouteCmdFile

setup_useTrackBasedRouting

setup_viaStackCuts

setup_viaStackOption

Related Topics

Routing Assistant

Routing Assistant User Interface for Chip Assembly Routing Flow

Virtuoso Pre-Route Browser


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