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5.32MACConfigurationRegister(MACCONFIG)
5.33SoftResetRegister(SOFTRESET)
EthernetMediaAccessController(EMAC)Registers
TheMACconfigurationregister(MACCONFIG)isshowninFigure58anddescribedinTable57.
Figure58.MACConfigurationRegister(MACCONFIG)
31242316
TXCELLDEPTHRXCELLDEPTH
R-3hR-3h
15870
ADDRESSTYPEMACCFIG
R-1R-1
LEGEND:R=Readonly;-n=valueafterreset
Table57.MACConfigurationRegister(MACCONFIG)FieldDescriptions
BitFieldValueDescription
31-24TXCELLDEPTH3hTransmitcelldepth.ThesebitsindicatethenumberofcellsinthetransmitFIFO.
23-16RXCELLDEPTH3hReceivecelldepth.ThesebitsindicatethenumberofcellsinthereceiveFIFO.
15-8ADDRESSTYPE1hAddresstype
7-0MACCFIG1hMACconfigurationvalue
Thesoftresetregister(SOFTRESET)isshowninFigure59anddescribedinTable58.
Figure59.SoftResetRegister(SOFTRESET)
3116
Reserved
R-0
1510
ReservedSOFTRESET
R-0R/W-0
LEGEND:R=Readonly;R/W=Read/Write;-n=valueafterreset
Table58.SoftResetRegister(SOFTRESET)FieldDescriptions
BitFieldValueDescription
31-1Reserved0Reserved
0SOFTRESETSoftwarereset.Writinga1tothisbitcausestheEMAClogictobereset.Softwareresetoccurs
whenthereceiveandtransmitDMAcontrollersareinanidlestatetoavoidlockingupthe
Configurationbus.Afterwritinga1tothisbit,itmaybepolledtodetermineiftheresethas
occurred.Ifa1isread,theresethasnotyetoccurred.Ifa0isread,thenaresethasoccurred.
0Asoftwareresethasnotoccurred.
1Asoftwareresethasoccurred.
SPRU941A–April2007EthernetMediaAccessController(EMAC)/99
ManagementDataInput/Output(MDIO)
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