step2a: 读入parasitic寄生参数 read_parasitics -format SPEF flat.spef read_parasitics -format GPD DPD_Dir # 层次化的SPEF read_prasitics -path I_BlkB I_BLkB.aprf.gz read_prasitics -path {U1 U2 U3} BlkC.spef.gz; # MIM (Multiply Instantiated Module) read_prasitics TOP.spe.gz read_pa...
PT_Unit_7
Synthesis RTLSimulation/Verification CellLibraries ConventionalFrontEndBackEndDivide DFTinsertion Floorplanning/P&R/TimingClosure/DesignClosureFABChipTesting GatelevelSimulation StaticTimingAnalysis ParasiticExtraction(SPEF)Backannotation(SDF)BasicSTAconcepts •PhasesofSTA:Pre-LayoutSTA Post-LayoutSTA ClockskewsNetDelay...
Synopsys 37038-000-S13W1 Create an ILM Postlayout Everything is the same except before creating an ILM: Read in physical data: SDF and parasitics This is so you can subsequently write out a partial SDF and parasitic file only for the nets and cells in the ILM Ensure you have propagat...
Synopsys37038-000-S13W1 UnitObjectives Statewhyphysicaldataisusefulduringtop-levelintegration StatewhatisSDFdata StatethethreeparasiticmodelsPrimeTimeaccepts Statetheprecedenceofback-annotateddata Aftercompletingthisunit,youshouldbeableto: 7-3 IntroductiontoPhysicalData ...
20、门控(复位)read_sdf *.sdf读入延迟文件read_parasitics *.pef 读入 RC 文件(spf)使用 disconnect_net create_cell connect_net 迫使 DC 在适当的位置插入 cell。在布图后将不用设置set_wire_load_model和set_wire_load_mode用实际的延迟和电容电阻代替了;也不用设置 set_clock_latancy 和 set_clock_tr...
read_parasiticsdesign_name.SPEF（.gz）•Applyconstraintsandcheck•sourcedesign_name_pt_constraints.tcl•check_timing •Generateinitialreport•report_analysis_coverage •Savethesession•save_session •PrintMessageandQuit•print_message_info•quit •库的类型用于设置PT时序分析时所要映射的库，...
PT_Unit_1 1-1
report_transitive_fanout –clock_tree(-from reset) 检查无意识的时钟门控(复位) read_sdf *.sdf 读入延迟文件 read_parasitics *.pef 读入RC文件(spf) 使用disconnect_net create_cell connect_net 迫使DC在适当的位置插入cell。 在布图后将不用设置set_wire_load_model和set_wire_load_mode 用实际的延迟...
Checkread_sdc in IC Compi lerand PrimeTime SI forconsistency , d. Use the same parasitics and coupl ing capacitance Check read_parasitics -keep_capacitive_coupling in PrimeTime SI .The SPEF fi le should be the one produced by IC Compi ler using extract_rc -coupling_cap and write_parasi...