1SEMIE5-0709©SEMI1982,2009SEMIE5-0709SEMIEQUIPMENTCOMMUNICATIONSSTANDARD2MESSAGECONTENT(SECS-II)ThisstandardwastechnicallyapprovedbytheglobalInformation&ControlCommittee.ThiseditionwasapprovedforpublicationbytheglobalAuditsandReviewsSubcommitteeonMay13,2009.Itwasavailableatwww.semi.orginJune2009andonCD-ROMinJuly2009.Originallypublished1982;previouslypublishedNovember2008.NOTICE:Theuser’sattentioniscalledtothepossibilitythatsomeimplementationsofthisstandard,particularlythoserelatedtotheuseofStream4,mayinvolvetheuseofinventionscoveredbyU.S.patents4,884,674and5,216,613,andbyotherpatentsissuedorpending,heldbyTexasInstrumentsIncorporated.Bypublicationofthisstandard,SEMItakesnopositionrespectingeithertheapplicabilityorthevalidityoftheseorotherpatentrightsassertedinconnectionwithanyitemmentionedinthisstandard.Usersofthisstandardareexpresslyadvisedthatdeterminationofanysuchpatentrightsandtheriskofinfringementofsuchrights,areentirelytheirownresponsibility.TableofContents1Purpose.......................................................................................................................................................................32Scope..........................................................................................................................................................................33Limitations..................................................................................................................................................................34ReferencedStandardsandDocuments.......................................................................................................................35Terminology...............................................................................................................................................................46TheMessageTransferProtocol..................................................................................................................................56.1Intent....................................................................................................................................................................56.2Message...............................................................................................................................................................56.3BlockingRequirements........................................................................................................................................56.4MessageHeader..................................................................................................................................................56.5TransactionTimeout............................................................................................................................................56.6MultipleOpenTransactions................................................................................................................................67StreamsandFunctions................................................................................................................................................67.1Streams................................................................................................................................................................67.2Functions............
