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1.4ExpressCard-Modeoperation
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ExpressCard-Modeoperation
•Generalcontrolregister(PCIregisteroffset:D4hinport1andport2downstreambridges)
–RCVR_PRSNT_EN=0b–PRSNTpinisusedtodeterminewhetherslotispresent
–REFCK_DIS=0b–REFCKenabled
–LINK_ACT_RPT_CAP=1b–Slotislinkactivereportingcapable
–SLOT_PFIP=1b–Powerfaultinputimplemented
–SLOT_PRSNT=1b–Portconnectedtoslot
–SLOT_ABP=1b–Attentionbuttonimplemented
–SLOT_PCP=1b–Powercontrollerimplemented
–SLOT_AIP=1b–Attentionindicatorimplemented
–SLOT_PIP=1b–Powerindicatorimplemented
–SLOT_HPS=1b–Devicepresentthatcanberemovedwithoutpriornotification.
–SLOT_HPC=1b–Slotishot-plugcapable
–RC_PF_CTL=1b–REFCKoutputenableisafunctionofPWR_FAULT
•Generalcontrolregister(PCIregisteroffset:D4hinport3downstreambridge)
–RCVR_PRSNT_EN=0b–PRSNTpinisusedtodeterminewhetherslotispresent
–REFCK_DIS=0b–REFCKenabled
–LINK_ACT_RPT_CAP=1b–Slotislinkactivereportingcapable
–SLOT_PRSNT=1b–Portconnectedtoslot
•Generalslotinforegister(PCIregisteroffsetEEhineachdownstreambridge)
–SLOT_NUM=1bforslot1,2bforslot2,and3bforslot3
Forthismodeofoperation,theExpressCardadapterboardisusedinconjunctionwiththeXIO3130EVM
board.ThisadapterboardutilizestheTITPS2231powerinterfaceswitchtoswitchpoweronandofftothe
ExpressCardslot.TIalsooffersadual-powerinterfaceswitchcalledtheTPS2236.Figure1-8showsthe
adapterboard.
SLLU108–July2008XIO3130EVM5
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