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5.50.7ReceiveOversizedFramesRegister(RXOVERSIZED)
5.50.8ReceiveJabberFramesRegister(RXJABBER)
5.50.9ReceiveUndersizedFramesRegister(RXUNDERSIZED)
5.50.10ReceiveFrameFragmentsRegister(RXFRAGMENTS)
EMACPortRegisters
ThetotalnumberofoversizedframesreceivedontheEMAC.Anoversizedframeisdefinedashavingall
ofthefollowing:
•WasanydataorMACcontrolframethatmatchedaunicast,broadcast,ormulticastaddress,or
matchedduetopromiscuousmode
•WasgreaterthanRXMAXLENinbytes
•HadnoCRCerror,alignmenterror,orcodeerror
SeeSection2.5.5fordefinitionsofalignment,code/CRCerrors.Overrunshavenoeffectonthisstatistic.
ThetotalnumberofjabberframesreceivedontheEMAC.Ajabberframeisdefinedashavingallofthe
following:
•WasanydataorMACcontrolframethatmatchedaunicast,broadcast,ormulticastaddress,or
matchedduetopromiscuousmode
•WasgreaterthanRXMAXLENbyteslong
•HadaCRCerror,alignmenterror,orcodeerror
SeeSection2.5.5fordefinitionsofalignment,code,andCRCerrors.Overrunshavenoeffectonthis
statistic.
ThetotalnumberofundersizedframesreceivedontheEMAC.Anundersizedframeisdefinedashaving
allofthefollowing:
•Wasanydataframethatmatchedaunicast,broadcast,ormulticastaddress,ormatcheddueto
promiscuousmode
•Waslessthan64byteslong
•HadnoCRCerror,alignmenterror,orcodeerror
SeeSection2.5.5fordefinitionsofalignment,code,andCRCerrors.Overrunshavenoeffectonthis
statistic.
ThetotalnumberofframefragmentsreceivedontheEMAC.Aframefragmentisdefinedashavingallof
thefollowing:
•Anydataframe(addressmatchingdoesnotmatter)
•Waslessthan64byteslong
•HadaCRCerror,alignmenterror,orcodeerror
•Wasnottheresultofacollisioncausedbyhalfduplex,collisionbasedflowcontrol
SeeSection2.5.5fordefinitionsofalignment,code,andCRCerrors.Overrunshavenoeffectonthis
statistic.
EthernetMediaAccessController(EMAC)/ManagementDataInput/Output(MDIO) 138SPRU975B–August2006
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