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1.3Hot-Plug-ModeOperation
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Hot-Plug-ModeOperation
Figure1-4.GPIOControlRegister
•Generalcontrolregister(PCIregisteroffset:D4hineachdownstreambridge)
–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
Inhot-plugmode,theEVMboardutilizestheTPS2363PCIeserverdual-slothot-plugcontrollertoswitch
poweronandofftoslots1and2.TheTPS2363isdirectlycontrolledbythehot-plugcontrollerbuiltinto
theXIO3130.Slot3operatesinnormalmode.ToconfiguretheEVMforhot-plugoperation,thesix
jumpers(J7,J11,J13,J14,J15,J16)mustberemoved(seeFigure1-5).
Figure1-5.PowerJumpers
ThedipswitchshouldbeconfiguredwithSCL,DN1_DPSTRPandDN2_DPSTRPslideswitchesintheup
position,andDN3_DPSTRPslideswitchesinthedownposition(seeFigure1-6).Thisconfiguration
enablestheEEPROMandenableshot-plugoperationonslots1and2.
SLLU108–July2008XIO3130EVM3
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