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VLYNQ2.XPackets
Anexampleofawriteburstflowedandinterruptedbyareadreturndataburstisshownbelow.Inthe
example,a1indicatesadatareturnchannel(itisactuallythereturndatacommand)anda0indicatesa
commandchannel,whichisthecommandforthetransaction.
IIIIclaaaaddddIcldddIII1ddddII0dddddddddddddIIIIII0dddTIIIII1dTIIII
Acommand,length,address,andstartreceivedatafromtheidlestream.Aflowenablewasreceivedfor
thecommandchannel,butthereisdatatoreturn,sotheflowisfollowedbyachannel1descriptor(the
commandforreturndataactuallyindicatesachannel1),andthechannel1packetisnowunderway.A
flowisnowreceivedforchannel1,butitissoondisabledsothechannel1packetcontinues.Theflowis
enabledforchanneloneagain,quicklyafterflowisreleasedforchannel0,sothedatacontinuesfor
channel0whenaflowisreceivedagainforchannel0.Channel0thenreceivesaflowdisable,completes
itspacket,followedbychannel1flowdisable,wherethechannel1packetisalsocompleted.
SPRUF89–October2007VLYNQProtocolSpecifications49
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