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EthernetMediaAccessController(EMAC)Registers
Table54.MACStatusRegister(MACSTATUS)FieldDescriptions(continued)
BitFieldValueDescription
10-8RXERRCH0-3hReceivehosterrorchannel.Thesebitsindicatewhichreceivechannelthehosterroroccurredon.
Thisfieldisclearedto0onahostread.
0Thehosterroroccurredonreceivechannel0
1hThehosterroroccurredonreceivechannel1
2hThehosterroroccurredonreceivechannel2
3hThehosterroroccurredonreceivechannel3
4hThehosterroroccurredonreceivechannel4
5hThehosterroroccurredonreceivechannel5
6hThehosterroroccurredonreceivechannel6
7hThehosterroroccurredonreceivechannel7
7-3Reserved0Reserved
2RXQOSACTReceiveQualityofService(QOS)activebit.Whenasserted,indicatesthatreceivequalityofservice
isenabledandthatatleastonechannelfreebuffercount(RXnFREEBUFFER)islessthanorequal
totheRXFILTERLOWTHRESHvalue.
0Receivequalityofserviceisdisabled.
1Receivequalityofserviceisenabled.
1RXFLOWACTReceiveflowcontrolactivebit.Whenasserted,atleastonechannelfreebuffercount
(RXnFREEBUFFER)islessthanorequaltothechannel'scorrespondingRXnFILTERTHRESH
value.
0Receiveflowcontrolisinactive.
1Receiveflowcontrolisactive.
0TXFLOWACTTransmitflowcontrolactivebit.Whenasserted,thisbitindicatesthatthepausetimeperiodisbeing
observedforareceivedpauseframe.Nonewtransmissionswillbeginwhilethisbitisasserted,
exceptforthetransmissionofpauseframes.Anytransmissioninprogresswhenthisbitisasserted
willcomplete.
0Transmitflowcontrolisinactive.
1Transmitflowcontrolisactive.
SPRU941A–April2007EthernetMediaAccessController(EMAC)/97
ManagementDataInput/Output(MDIO)
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