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Contents

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1

Introduction

Key Features

The Placement Commands

Placement Types

Placement Of Different Component Types

Global Snap Pattern Grid Support

The Placement Flow

Setting Up Layout XL for Placement

Setting the Netlisting Mode

Defining the Placement Region

Abutting Standard Cells

Setting MOS Chaining and Folding Parameters

Using Automatic Abutment During Placement

Setting Placement Constraints

Geometric Constraints

Pin Placement Constraints

Setting Pin Placement Constraints using the Pin Placement Form

Defining Component Types and Placement Parameters

Defining a Standard Cell Substrate Contact

MOS Transistor Chaining and Folding Parameters

Troubleshooting Placement

Room Violations

2

Pin Planning

Using the Pin Placement Form

3

Placement Planning

Row Height Calculation

Types of Rows

Support for Flipped Row Creation

Blockage Support

Placement Restrictions - Designs with Only Devices

Planning a Placement

Planning Placement of Multi-Height Cells

Planning Placement of Standard Cells

Assigning Edges for Boundary Cells

4

Running the Placer

Prerequisites to Placement

Running the Placer

Context-Aware Placement

Placement of Multi-Voltage Cells

Support for Virtual Hierarchies in the Design Planner Environment

Running the Placer Using SKILL

5

Finishing Tasks

Inserting and Deleting Filler Cells

Swapping Tap Cells

6

Custom Digital Placer Forms

Auto Placer

Choose Types

Dressing Template Editor

Pin Placement

Pin Planner

Placement Planning

Swap Tap Cells

Insert/Delete Filler Cells Form

Placement Status

7

Custom Digital Placer Environment Variables

List of Custom Digital Placer Environment Variables

adjustBdy

allowPins

allowRotation

allowRowsBeyondRegion

avoidAbutment

botRowBdryCell

botTapBdryCell

boundaryCellType

colorRemasteringCellMapFiles

colorRemasteringCellMapSuffix

componentEdge

considerOptionalEdges

contextAwarePlacement

contextConstraintFile

createPhysOnlyFillers

ecoModeImpact

enableColorRemastering

endCapCellName

endCapLibName

endCapViewName

extendBoundary

extendBoundaryDirection

fillerCompTypes

highlightRowFromDTE

generateRails

groupCMOSPairs

groupMFactors

hierVHPlace

ignoreBlockage

ignoreBlockageAndInsts

insertBdryCells

insertCapCells

insertFillerCells

insertFillers

insertSubstrateContacts

interRowSpacer

intraRowSpacer

leftBotCornerBdryCell

leftBotEdgeBdryCell

leftCellMirror

leftCornerCellMirror

leftEdgeBdryCell

leftTopCornerBdryCell

leftTopEdgeBdryCell

lockTap

lxGroundNetNames

lxSupplyNetNames

maxPinsPerNet

minBoundaryOffset

mixedMode

multiVTLayers

minVTLength

multiVTPlacement

nDiffSpacing

numRowOption

numRowSites

numTemplateRowOption

openWindow

optimization

packedPlacement

pDiffSpacing

periodicTap

pinPlacementXGrid

pinPlacementYGrid

placeCluster

placementMode

placementRegion

preserveChains

refXGridName

refYGridName

refXOffset

refYOffset

reserveTracksForRouting

rightBotCornerBdryCell

rightCellMirror

rightCornerCellMirror

rightEdgeBdryCell

rightTopCornerBdryCell

rightTopEdgeBdryCell

routingAwarePinPlc

rowCount

rowsFromLowerLeft

rowGroundLayer

rowGroundName

rowGroundWidth

rowOffsetX

rowOffsetY

rowPowerLayer

rowPowerName

rowPowerWidth

rowSpacingOption

rowTapEndOffset

rowTemplateName

rowUtilization

row2RowSpacing

rowPitchOption

rowPitchValue

saveAs

saveAsCellName

saveAsLibName

saveAsViewName

selectBoundaryCellsFrom

selectedBoundaryCells

selectedFillerCells

selectFillerCellsFrom

selectedTapCells

selectTapCellsFrom

selectedOnly

showProgress

skipCellRailPattern

startCapCellName

startCapLibName

startCapViewName

subContInAlternateRow

subContMaxSpacing

subContMinSpacing

substrateContactType

supplyPattern

supplyPosition

templateRowCount

topBotRowPlaceable

topRowBdryCell

topTapBdryCell

usePartialTemplate

vcpCellBoundaryLPPs

vcpCellBoundaryUI

vcpConductorDepth

vcpEnableMultiVoltagePlacement

vcpGlobalPathScript

vcpKeepoutDepth

vcpRulesConstraintGroup

vcpVerboseLevel

vcpWriteToCIW

vpaAutoLevel1Switch

vpaAutoZoomEnable

vpaAutoZoomLevel

vpaUpdateConstraints

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