dbGet 进阶用法

这是一篇关于dbGet 进阶用法的思维导图，主要内容包括：属性，查询命令。有需要的赶紧收藏吧！

dbGet 进阶用法

• 查询命令
  • dbSchema net / dbSchema net*
  • dbGet top.insts.?h pStatus
  • dbSchema -parent net 查询上一级的属性 dbSchema -parent net -list
• 属性
  • bndry 得到design中fence,region,guide的place信息
    • Parent Object fPlan, hInst
    • Child Object area，box，box_area，box_ll，box_llx，box_lly，box_size，box_sizex，box_sizey，box_ur，box_urx，box_ury，boxes，hInst，objtype，prop，type
      • objtype: 该attribute的类型是什么，通常可以用于检查一个指针是什么类型
      • prop: 可以自己使用define_property来定义新的property
      • type: 这个类型就是指module的约束属性了，分别是fence,region,guide,none,cluster
      • hInst 带有hierarchy结构的module
  • bump 得到design中的bump信息
    • Parent Object topCell
    • Child Object
      • cell: bump cell
      • net: bump上assign的net
      • pStatus: bump placement status，分为cover, fixed, placed, softFixed, unplaced
      • term: bump的terminal
      • type: bump的terminal属性，分为analogTerm, asyncCtrlTerm, clockTerm, dQTerm, dTerm, fFQTerm, feedTerm, gatedClockTerm, groundTerm, latchQTerm, normalTerm, powerTerm, rSTerm, triStateTerm
  • bus 得到design中bus net的属性
    • Parent Object net, term
    • Child Object baseName，bits，lsb，msb
      • baseName: bus的基本名，比如A[7:0]的base name 就是A
      • bits: bus的每个bit
      • lsb: bus最小的有效bit
      • msb: bus最大的有效bit
  • busGuide 得到floorplan中bus guide的信息
    • Parent Object fplan
    • Child Object area，botLayer，box，box_area，box_ll，box_llx，box_lly，box_size，box_sizex，box_sizey，box_ur，box_urx，box_ury，netGroup，topLayer
  • fPlan 基本上physical的东西都能在这个parent下搜到
    • Parent Object topCell
    • Child Object
  • gCellGridDef 得到design中gcell grid的属性，其实输出的就是def文件中gcell grid的内容
    • Parent Object fPlan
    • Child Object dir，numGrids，start，step
      • dir: design中所有类型的gcell grid的方向
      • numGrids:design中所有类型gcell grid的属性
      • start: design中所有类型gcell grid的起始点
      • step:design中所有类型gcell grid的间距
  • group 得到design中inst group的信息
    • Parent Object fPlan, hInst, inst, pd
    • Child Object area，boxes，conType，density，members，name，parent，pd，props
      • conType：得到instance group所添加的constrain属性
      • members：得到添加到instance group中的instance属性
      • parent：得到sub group所属的parent group属性
      • pd: 得到instance group的power domain
  • head head是整个design中包括库在内的所有东西总和。
    • Parent Object No Parents
    • Child Object allCells，cellEdgeSpacings，dbUnits，finGridDirection，finGridOffset，finGridPitch，instMaskShiftLayers，layers，libCells，mfgGrid，props，ptnCells，routeTypes，rules，sites，topCells，vCells，vias
      • instMaskShiftLayers：得到instance哪层layer可以shift
      • ptnCells： 得到partition cell名字
      • rules： design中的ndr rules
      • vCells：verilog中的module
  • hInst hierarchical insts
    • Parent Object bndry，group，hInstTerm，hTerm， inst，ptn，topCell，vCell
    • Child Object allInsts，allTreeInsts，area，bndry，box，box_area，box_ll，box_llx，box_lly，box_size，box_sizex，box_sizey，box_ur，box_urx，box_ury，boxes，cell，group，hInstTerms，hInsts，hNets，insts，name，parent，props，ptn，treeHInsts，treeInsts
      • allInsts：指的是当前hinst level下的所有insts
      • allTreeInsts: 指的是所有hinst以及所有子level下的inst
      • hInstTerms: hinst的terminal，就是传统意义上的hinst的port口，如下图所示：红圈圈的就是top下hinst的hInstTerms
      • hNets：指hinst的net
      • parent：指的是hinst上一级parent hinst的属性
      • treeHInsts：得到所有的hinsts属性
      • treeInsts：得到所有的insts属性，treeInsts加上treeHInsts就是allTreeInsts
  • hInstTerm hinst的terminal
    • Parent Object hInst, hNet
    • Child Object downHNet，hInst，hTerm，layer，name，net，props，pt，pt_x，pt_y，term，upHNet
      • hTerm：hierarchical term，这个和hinstTerm的区别在于，hinstTerm是对一个hinst来说，从外往里看的teminal；而hTerm是从里往外看的teminal，是flat的
      • downHNet/upHNet: 对一条hierarchical net来说，对交接处的port来说，往下走的net就是downHNet，就是蓝色圆圈；往上走的net的就是upHNet，就是红色圆圈。
      • term：term的概念是cell的terminal，可以是lib cell，partition cell或者top cell
  • inst flat design下的instance
    • Parent Object group, hInst, instTerm, io, pBlkg, ptn, rBlkg, sdp, topCell
    • Child Object area,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,boxes,cell,group,hInst,instTerms,isAlwaysOn,isDontTouch,isHaloBlock,isIsolation,isJtagElem,isLevelShifter,isPhysOnly,isSpareGate,maskShift,name,orient,pHaloBot,pHaloBox,pHaloBox_area,pHaloBox_ll,pHaloBox_llx,pHaloBox_lly,pHaloBox_size,pHaloBox_sizex,pHaloBox_sizey,pHaloBox_ur,pHaloBox_urx,pHaloBox_ury,pHaloLeft,pHaloRight,pHaloTop,pStatus,pd,pgCellTerms,pgTermNets,props,pt,pt_x,pt_y,rHaloBotLayer,rHaloSideSize,rHaloTopLayer
  • instTerm instance的pin
    • Parent Object hNet, inst, net
    • Child Object cellTerm,hNet,inst,isInput,isOutput,isSpecial,isTieHi,isTieLo,layer,name,net,pd,pt,pt_x,pt_y
  • io io pad或者io pin的信息
    • Parent Object fPlan
    • Child Object area,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,indent,inst,isAssigned,isCorner,isGapFixed,isGround,isOffsetFixed,isPower,name,offset,order,row,side,spacing,term,type
  • layer tech lef中layer的信息
    • Parent Object antennaData, busGuide, cellDensity, fPlan, hInstTerm, head, inst, instTerm, layerRule, layerShape, marker, net, pWire, pinGuide, ptn, ptnPinBlkg, rBlkg, routeType, sWire, term, text, trackDef, vWire, via, viaRuleGenerate, wire
    • Child Object antennaModel1,antennaModel2,antennaModel3,antennaModel4,area,backside,densityStepX,densityStepY,densityWindowX,densityWindowY,direction,extName,fillActiveSpacing,fillGapSpacing,maxDensity,maxWidth,mfgGrid,minDensity,minSpacing,minWidth,name,num,numMasks,offsetX,offsetY,pitchX,pitchY,props,spacingTables,type,width,wrongwayMinWidth,wrongwaySpacing,wrongwayWidth
  • libCell library中的cell信息
    • Parent Object bump, head, inst, term
    • Child Object abstractLib,abstractView,allObstructions,baseClass,cellDensities,eeqCells,foreigns,isAbstractDefined,isBuffer,isDontTouch,isDontUse,isInverter,isIsolation,isLevelShifter,isSequential,isTimeDefined,isVDDOnBottom,layerShapeObstructions,layoutLib,layoutView,lefFileName,leftEdgeName,leftPadding,name,numBidirs,numInputs,numOutputs,numPGTerms,numPhysTerms,numRefs,numTerms,pgTerms,physTerms,props,rightEdgeName,rightPadding,shapeViaObstructions,site,size,size_x,size_y,subClass,symmetryR90,symmetryX,symmetryY,terms
  • net net信息
    • Parent Object bump, bus, hInstTerm, hNet, hTerm, inst, instTerm, netGroup, pWire, pd, routeType, sViaInst, sWire, term, topCell, vWire, viaInst, wire
    • Child Object allTerms,area,avoidDetour,botMaskLayerNum,botOneSideSpacingLayerNum,bottomPreferredLayer,box,box_area,box_ll,box_llx,box_lly,box_size,box_sizex,box_sizey,box_ur,box_urx,box_ury,bus,hNets,instTerms,isAnalog,isCTSClock,isClock,isDontTouch,isExternal,isFixedBump,isGnd,isMixedSignal,isPatternTrunk,isPhysOnly,isPwr,isPwrOrGnd,isScanNet,isTrialRouted,mask,maxVoltage,minVoltage,name,numInputTerms,numOutputTerms,numTerms,pWires,preferredExtraSpace,props,rule,sVias,sWires,shieldNets,siPostRouteRepair,skipAntennaRepair,skipRouting,terms,topMaskLayerNum,topOneSideSpacingLayerNum,topPreferredLayer,vias,weight,wires
  • topCell top cell下面的信息
    • Parent Object fPlan, head, pinGroup, pinGuide, term
    • Child Object bumps,designLib,designView,fPlan,hInst,insts,isProtoModelCommitted,isProtoModelSpecified,isVDDOnBottom,markers,name,nets,numBidirs,numInputs,numInsts,numNets,numPGTerms,numPhysInsts,numPhysNets,numPhysTerms,numTerms,pds,pgTerms,physInsts,physNets,physTerms,pinToCornerDist,pkgComponents,pkgObjects,props,ptns,statusClockSynthesized,statusDetailRouted,statusGRouted,statusIoPlaced,statusPlaced,statusPowerAnalyzed,statusRCExtracted,statusRouted,statusScanOpted,symmetryR90,symmetryX,symmetryY,terms,texts
  • term top level io port信息
    • Parent Object bump, bus, hInstTerm, hTerm, inst, instTerm, io, libCell, net, pinGroup, ptnCell, topCell
    • Child Object antennas,bus,cell,depth,groundSensitivity,inOutDir,isClk,isInput,isOutput,isScanClk,isSpecial,isTieHi,isTieLo,layer,mustJoin,name,net,orient,pStatus,pd,pins,props,pt,pt_x,pt_y,rule,shape,side,supplySensitivity,type,width