5.48TransmitChannel0-7CompletionPointerRegister(TXnCP)
5.49ReceiveChannel0-7CompletionPointerRegister(RXnCP)
EthernetMediaAccessController(EMAC)Registers
Thetransmitchannel0-7completionpointerregister(TXnCP)isshowninFigure88anddescribedin
Table87.
Figure88.TransmitChannelnCompletionPointerRegister(TXnCP)
3116
TXnCP
R/W-x
150
TXnCP
R/W-x
LEGEND:R/W=Read/Write;-n=valueafterreset;-x=valueisindeterminateafterreset
Table87.TransmitChannelnCompletionPointerRegister(TXnCP)FieldDescriptions
BitFieldValueDescription
31-0TXnCP0-FFFFFFFFhTransmitchannelncompletionpointerregisteriswrittenbythehostwiththebufferdescriptor
addressforthelastbufferprocessedbythehostduringinterruptprocessing.TheEMACusesthe
valuewrittentodetermineiftheinterruptshouldbedeasserted.
Thereceivechannel0-7completionpointerregister(RXnCP)isshowninFigure89anddescribedin
Table88.
Figure89.ReceiveChannelnCompletionPointerRegister(RXnCP)
3116
RXnCP
R/W-x
150
RXnCP
R/W-x
LEGEND:R/W=Read/Write;-n=valueafterreset;-x=valueisindeterminateafterreset
Table88.ReceiveChannelnCompletionPointerRegister(RXnCP)FieldDescriptions
BitFieldValueDescription
31-0RXnCP0-FFFFFFFFhReceivechannelncompletionpointerregisteriswrittenbythehostwiththebufferdescriptor
addressforthelastbufferprocessedbythehostduringinterruptprocessing.TheEMACusesthe
valuewrittentodetermineiftheinterruptshouldbedeasserted.
SPRUEQ6–December2007EthernetMediaAccessController(EMAC)/ManagementDataInput/Output(MDIO)123
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