Data Sheet

USBProtocolSuiteUserManual 251
SaveExternalSignals TeledyneLeCroyCorporation
5.2.14 Repeated Triggering
Insomecircumstances,youwillwanttoissueapulseontheexternaltrigger
connection(s)wheneveryouseeanevent.Bycheckingthisbox,thispulsewilloccurevery
timetheeventisseen,aslongasitissetupasatriggerinthetriggerdefinitiondialogs.It
willonlybeindicatedonceinthecapturedsoftware,atthepointwherethefirstinstance
occurred.Eventsmustbespacedfarenoughapartforthepulsetoberesetbyhardware,
oritwillnotbevisibleonexternalequipment.Itissafesttochooseeventswhichwill
occurnomorefrequentlythanoncepermicroframe(125uSec)RepeatedTriggering.
5.3 Save External Signals
ThisfeaturesaveseightbitsofdatafromtheM310'sOctopusCable(Partnumber
AC050XXA‐X)bysamplingevery20microseconds.Thevaluesareshowninconjunction
witheachpacketdisplayed.Thevalueisequaltowhateverwassampledpriortothestart
ofthedisplayedpacket.Thisfeaturecanbeusedalongwithadevelopmentsystemto
trackexternalevents.
5.4 Recording Options-Misc. USB 2.0
TheMisc.USB2.0pagepresentsoptionsforsetting(seeFigure5.34onpage252):
 AnalyzerTraceSpeed:SelectAuto‐Detect,Low,Full,orHigh.
 USBOn‐the‐Go:CheckOn‐the‐GoSRP.OptionallyselectDual Role Devicesas2
DRD’sandenterdevicenames.OptionallyassumethatBisthefirsthost.
 Generator/AnalyzerClockingOverrides:SelectSlowClockandenternumberof
megahertz.Note:Auto‐DetectmodedoesnotallowSlowClock.
 Generator‐relatedParameters:Chooseparametersanddeviceaddresslocation.
 Options:Truncatedatafields