RadiSys ATCA-5400 RTM Specifikace stáhnout pdf (Strana 50)

Hardware Management

IPMC description

ThehardwaremanagementsystemoftheCPMiscontrolledbyanIPMC,whichcomprises

amicrocontroller,anIPMCFPGA,andEEPROMsforIPMCdatastorage.TheIPMCinteracts

withtheCPM’sCPUandtheShelfManagerto:

• monitortemperature,voltage,andothersensorsontheCPM

• controlandmonitorthehotswapprocessfortheCPM,AMC,andRTM

•interactwiththeShelfManagertoimplementbackplaneE‐Keying

•manageon‐boardE‐KeyingfortheAMCandtheRTM

•provideremoteconsoleaccesstotheCPMpayload

Usingserial‐over‐LANcommunications,theIPMCprovidesaremoteuserwithaccessto

theCPUserialconsolethroughthebaseinterface.Formoreinformation,seeSerial‐over‐

LANonpage 65.

TheCPM'sCPUcommunicateswiththeIPMCthroughakeyboardcontrollerstyle(KCS)

interface,whichprovidesaccesstoIPMIfunctions.ThisallowstheCPUtosendmessages

totheCPM'sIPMCortoanyothermanagementcontrollerintheshelf.Foralistofthe

IPMIcommandsanddetailsonthesensorsusedontheCPM,refertoAppendixB,IPMI

CommandsandManagedSensors,onpage 97).

IPMC microcontroller

TheIPMC’smicrocontrollerisaRenesasH8S/2166microcontroller.Thisdeviceisa

general‐purpose32‐bitmicrocontrollerwithsixteen16‐bitgeneralregisters.Itcanhandle

a16‐MBlinearaddressspace;italsocontains512KBofembeddedflashand40 KBof

RAM.

TheIPMCmicrocontrollerprovidestheonlyconnectionbetweentheCPMandthe

externalATCAshelfIPMBs.ThemicrocontrollerimplementssixI

Cinterfaces.Italso

supportsthefollowinginterfaces,monitoringtheinputsandcontrollingtheoutputs:

• Digitalinputs/outputs

•Analog‐to‐digital inputs

•HW‐basedI2Cinterfaces

•Serialinterfaces

•LPCinterfaces

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RadiSys ATCA-5400 RTM Specifikace Strana 50