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4MDIORegisters
4.1MDIOVersionRegister(VERSION)
MDIORegisters
Table10liststhememory-mappedregistersfortheMDIOmodule.Seethedevice-specificdatamanual
forthememoryaddressoftheseregisters.
Table10.ManagementDataInput/Output(MDIO)Registers
OffsetAcronymRegisterDescriptionSection
0hVERSIONMDIOVersionRegisterSection4.1
4hCONTROLMDIOControlRegisterSection4.2
8hALIVEPHYAliveStatusregisterSection4.3
ChLINKPHYLinkStatusRegisterSection4.4
10hLINKINTRAWMDIOLinkStatusChangeInterrupt(Unmasked)RegisterSection4.5
14hLINKINTMASKEDMDIOLinkStatusChangeInterrupt(Masked)RegisterSection4.6
20hUSERINTRAWMDIOUserCommandCompleteInterrupt(Unmasked)RegisterSection4.7
24hUSERINTMASKEDMDIOUserCommandCompleteInterrupt(Masked)RegisterSection4.8
28hUSERINTMASKSETMDIOUserCommandCompleteInterruptMaskSetRegisterSection4.9
2ChUSERINTMASKCLEARMDIOUserCommandCompleteInterruptMaskClearRegisterSection4.10
80hUSERACCESS0MDIOUserAccessRegister0Section4.11
84hUSERPHYSEL0MDIOUserPHYSelectRegister0Section4.12
88hUSERACCESS1MDIOUserAccessRegister1Section4.13
8ChUSERPHYSEL1MDIOUserPHYSelectRegister1Section4.14
TheMDIOversionregister(VERSION)isshowninFigure13anddescribedinTable11.
Figure13.MDIOVersionRegister(VERSION)
3116
MODID
R-7h
15870
REVMAJREVMIN
R-1hR-3h
LEGEND:R=Readonly;-n=valueafterreset
Table11.MDIOVersionRegister(VERSION)FieldDescriptions
BitFieldValueDescription
31-16MODIDIdentifiestypeofperipheral.
7hMDIO
15-8REVMAJIdentifiesmajorrevisionofperipheral.Revisionsareindicatedbyarevisioncodetakingtheformat
REVMAJ.REVMIN.
1hCurrentmajorrevisionofperipheral.
7-0REVMINIdentifiesminorrevisionofperipheral.Revisionsareindicatedbyarevisioncodetakingtheformat
REVMAJ.REVMIN.
3hCurrentminorrevisionofperipheral.
SPRU941A–April2007EthernetMediaAccessController(EMAC)/55
ManagementDataInput/Output(MDIO)
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