OCP Specification 3.1 - OCP-IP

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120 Open Core Protocol SpecificationDRAFTscohid_enableIf this parameter is set, the SCohID signal is instantiated.cohfwdid_enableIf this parameter is set, the MCohFwdID signal is instantiated.mcohid_wdthWidth of the MCohID signal.scohid_wdthWidth of the SCohID signal.cohfwdid_wdthWidth of the CohFwdID signal.6.3.3 Signals and EncodingsTable 44 gives an overview of which signals can be or must be included. Newsignals and their control parameters introduced for the CoherentTransactions are in bold and italicized font.Table 44Intervention Port SignalsGroupSignalEnable ControlParametersWidth ControlParametersCommentsBasic Clk RequiredMAddr addr=1 addr_wdth RequiredMCmdRequired (only asubset of thecoherentcommands areallowed)MData mdata=0 Not allowedMDataValid datahandshake=0 Not allowedMRespAccept respaccept OptionalSCmdAccept cmdaccept OptionalSData sdata=1 data_wdth OptionalSDataAccept dataaccept=0 Not allowedSResp resp=1 Required (onlyNULL, DVA, and OKresponses allowed)OCP-IP Confidential May 14, 2012
OCP Coherence Extensions: Signals and Encodings 121DRAFTGroupSignalEnable ControlParametersWidth ControlParametersCommentsSimple MAddrSpace addrspace addrspace_wdth OptionalMByteEn byteen=0 Not allowedMDataByteEn mdatabyteen=0 Not allowedMDataInfo mdatainfo=0 Not allowedMReqInfo reqinfo reqinfo_wdth OptionalSDataInfo sdatainfo sdatainfo_wdth OptionalSRespInfo respinfo respinfo_wdth OptionalBurst MAtomicLength atomiclength atomiclength_wdth Tied off to cacheline sizeMBurstLength burstlength burstlength_wdth Tied off to cacheline sizeMBurstPrecise burstprecise=1 Tied off to 1MBurstSeq burstseq Required. OnlyINCR, XOR, andWRAP are allowed.MBurstSingleReq burstsinglereq=1 Tied off to 1MDataLast datalast=0 Not allowedMReqLast reqlast=0 Not allowedSRespLast resplast=0 Not allowedOCP-IP Confidential May 14, 2012
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DRAFT© 2000-2012 OCP-IP Associatio
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ContentsDRAFTix5.3.1 Cache Line and
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ContentsDRAFTxiii14.3.6 Coherent an
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DRAFTxviiChanges for Version 3.1Cha
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DRAFT1 OverviewThe Open Core Protoc
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Overview 3DRAFTanalysis and reduce
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DRAFTPart ISpecificationOCP-IP Conf
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DRAFT2 Theory of OperationThe Open
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Theory of Operation 9DRAFTtransfer
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Theory of Operation 11DRAFTThe OCP
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DRAFT3 Signals and EncodingOCP inte
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Signals and Encoding 15DRAFTMAddr i
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Signals and Encoding 17DRAFTName Wi
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Signals and Encoding 19DRAFTThis fi
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Signals and Encoding 21DRAFTMBurstP
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Signals and Encoding 23DRAFTMDataTa
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Signals and Encoding 25DRAFTTable 1
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Signals and Encoding 27DRAFT3.2 Sid
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Signals and Encoding 29DRAFTConnect
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Signals and Encoding 31DRAFT3.3 Tes
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Signals and Encoding 33DRAFT• SCm
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Signals and Encoding 35DRAFTGroupSi
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Signals and Encoding 37DRAFT28 Stat
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DRAFT4 Protocol SemanticsThis chapt
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Protocol Semantics 41DRAFTGroup Sig
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Protocol Semantics 43DRAFT4.3.2 Dat
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Protocol Semantics 45DRAFT4.3.2.2 P
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Protocol Semantics 47DRAFTCombinati
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Protocol Semantics 49DRAFT(M_OFF st
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Protocol Semantics 51DRAFT4.3.3.5 T
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Protocol Semantics 53DRAFT4.4.2 Pos
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Protocol Semantics 55DRAFTA single
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Protocol Semantics 57DRAFT4.6.2 Bur
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Protocol Semantics 59DRAFTFor all r
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Protocol Semantics 61DRAFT4.8 TagsT
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Protocol Semantics 63DRAFT4.10 OCP
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DRAFTProtocol Semantics 65Section 4
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Protocol Semantics 67DRAFT4.10.1.8
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Page 95 and 96: Protocol Semantics 77DRAFTTable 34C
Page 97 and 98: Protocol Semantics 79DRAFTType Para
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Page 101 and 102: OCP Coherence Extensions: Theory of
Page 119 and 120: DRAFT6 OCP Coherence Extensions:Sig
Page 121 and 122: OCP Coherence Extensions: Signals a
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Page 149 and 150: DRAFT7 Core Configuration FileOCP c
Page 151 and 152: Core Configuration File 133DRAFTOCP
Page 153 and 154: Core Configuration File 135DRAFTOCP
Page 155 and 156: DRAFT8 Interface Configuration File
Page 157 and 158: Interface Configuration File 139DRA
Page 159 and 160: Interface Configuration File 141DRA
Page 161 and 162: DRAFT9 Core RTL Configuration FileN
Page 163 and 164: Core RTL Configuration File 145DRAF
Page 173 and 174: DRAFT10 Core TimingTo connect two e
Page 175 and 176: Core Timing 157DRAFT10.1.3 Technolo
Page 177 and 178: Core Timing 159DRAFT10.1.4.1 Max De
Page 179 and 180: Core Timing 161DRAFTrootclockperiod
Page 181 and 182: Core Timing 163DRAFT10.2.5 Port Con
Page 183 and 184: Core Timing 165DRAFTConstant values
Page 185 and 186: Core Timing 167DRAFTExamplesIn the
Page 187 and 188: Core Timing 169DRAFT10.2.8 Sample C
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DRAFTPart II GuidelinesOCP-IP Confi
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DRAFT11 Timing DiagramsThe timing d
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Timing Diagrams 175DRAFT11.2 Reques
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Timing Diagrams 177DRAFTE. The slav
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Timing Diagrams 179DRAFTSequenceA.
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Timing Diagrams 181DRAFTFigure 27No
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Timing Diagrams 183DRAFTF. The slav
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Timing Diagrams 185DRAFTFigure 30In
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Timing Diagrams 187DRAFTFigure 31In
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Timing Diagrams 189DRAFTB. The mast
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Timing Diagrams 191DRAFT11.14 Incre
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Timing Diagrams 193DRAFTFigure 35Si
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Timing Diagrams 195DRAFTD. Since SC
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Timing Diagrams 197DRAFTThis exampl
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Timing Diagrams 199DRAFTincluding t
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Timing Diagrams 201DRAFTslave respo
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Timing Diagrams 203DRAFTwith a DVA
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Timing Diagrams 205DRAFTWhen thread
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Timing Diagrams 207DRAFTB. Since ST
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Timing Diagrams 209DRAFT11.25 Reset
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Timing Diagrams 211DRAFTFigure 47Ba
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Timing Diagrams 213DRAFTstates. In
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DRAFT12 OCP Coherence Extensions:Ti
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OCP Coherence Extensions: Timing Di
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DRAFT13 Developers GuidelinesThis c
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Developers Guidelines 229DRAFTThe i
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Developers Guidelines 231DRAFT(or t
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Developers Guidelines 233DRAFTSecti
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Developers Guidelines 235DRAFTFigur
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Developers Guidelines 237DRAFTSome
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Developers Guidelines 239DRAFTAnoth
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Developers Guidelines 241DRAFT13.3.
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Developers Guidelines 243DRAFTFigur
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Developers Guidelines 245DRAFT13.3.
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Developers Guidelines 247DRAFTThe t
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Developers Guidelines 249DRAFT[[Not
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Developers Guidelines 251DRAFTexten
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Developers Guidelines 253DRAFTThe m
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Developers Guidelines 255DRAFTThe r
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Developers Guidelines 257DRAFTmakes
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Developers Guidelines 259DRAFTBoth
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Developers Guidelines 261DRAFTIf th
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Developers Guidelines 263DRAFTBit V
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Developers Guidelines 265DRAFT• E
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Developers Guidelines 267DRAFTtime,
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Developers Guidelines 269DRAFTA sla
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DRAFT14 Developer’s Guidelines: O
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Developer’s Guidelines: OCP Coher
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CC_RDSH; Maddr; MReqInfo=CID1CC_RDO
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DRAFT15 Timing GuidelinesTo provide
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Timing Guidelines 333DRAFTTable 69L
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DRAFT16 OCP ProfilesA strength of O
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OCP Profiles 337DRAFT16.1 Consensus
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OCP Profiles 339DRAFTMByteEn[3] MBy
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OCP Profiles 341DRAFTSignal* Enabli
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OCP Profiles 343DRAFTSignal Enablin
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OCP Profiles 345DRAFTHigh-Speed Pro
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OCP Profiles 347DRAFT16.1.4 Optiona
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OCP Profiles 349DRAFTWith the excep
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OCP Profiles 351DRAFTParameter Valu
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OCP Profiles 353DRAFTParameter Valu
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OCP Profiles 355DRAFTTable 79Block
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OCP Profiles 357DRAFTFigure 95Simpl
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OCP Profiles 359DRAFTFigure 96X-bus
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OCP Profiles 361DRAFT• Single-req
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DRAFT17 Core PerformanceTo make it
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Core Performance 365DRAFTd. Burst s
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Core Performance 367DRAFTFor slave
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Core Performance 369DRAFTFor slave
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DRAFTAOCP Trace FileThe OCP trace f
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DRAFT373Table 83OCP Trace File, Lin
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DRAFT375OCP-IP Confidential May 14,
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DRAFT377IndexAaccess mode informati
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Index 379DRAFTclkctrl_enable parame
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Index 381DRAFTFFAIL response 16, 51
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Index 383DRAFTMData signaldata vali
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Index 385DRAFTrdlwrc_enable 103rdlw
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Index 387DRAFTsemaphores 258sequent
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Index 389DRAFTin 32out 32logic rese
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DRAFT391XOR address sequence 55XOR
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This document was designed for doub
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OCP Specification 3.1 - OCP-IP

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