ADC 6021 Specifiche Scaricare il pdf (Pagina 19)

MYXPM6021*

Revision 1.1 - 10/21/14

*Advanced information. Subject to change without notice.

MYXPM6021*

Form #: CSI-D-685 Document 011

7.1.25 SUSCLK

SUSCLKisthe32.768kHzRTCclockthatissuppliedfromtheSoC.ItisavailabletoMYXPM6021about100msafter

RSMRST_Bisde-assertedandcontinuetobeavailableinS0,S0iX,S3andS4state.Itisnotavailableiftheplatformwill

beinG3modewhenthesuspendvoltagerailsaredisabled.

7.1.26 THERMTRIP_B

THERMTRIP_Bisanactive lowdedicatedinputsignalthatnotiesthePMICofaSOC thermalevent.Itisvalidwhen

RSMRST_B=1andPLTRST_B=1(de-asserted).UponsensingtheTHERMTRIP_Bsignalhastransitionedlow,thePMIC

shutsdownallrailsimmediately(hardshutdown,notwaitingforSLP_S*_BsignalsfromtheSOCtoexecuteaColdOff

powerdownsequence).Toavoidspuriousdetectionduringpowersequencing,theTHERMTRIP_Bsignalisonlysampled

ifPLTRST_Bisde-asserted.THERMTRIPhasinternalpull-up.

7.1.27 PROCHOT_B

PROCHOT_BisanactivelowdedicatedoutputsignalusedtonotifytheSoCofaPMIC,batteryorsystemthermalevent.

PROCHOT_BwillbeassertedwhenthePMICtemperature,batterytemperatureorsystemtemperaturehascrossedthe

alertthresholdsdeneinthethermalmonitoringsection.Itwillalsoassertwhenbatteryvoltagedropstothethresholdset

inSVTM.PROCHOT_BisassertedifthePMICdietemperaturerisesabovetheinternallysetalertthreshold,forexample

110°C,to preventthePMIC fromreachingcriticaltemperature.It isvalid whenRSMRST_B=1 andPLTRST_B=1 (de-

asserted).TheSOCwillgointoalowerpowerstateuntilthePMICthermaleventisclearedandthepinisde-asserted.

PROCHOT_Bhasinternalpullup.

7.1.28 SDMMC3_1P8_EN

SDMMC3_1P8_ENisadedicatedinputsignalfromtheSOCtoselect1.8Vor3.3VforSDcard.

• SDMMC3_1P8_EN=1toselect1.8VforSDcard.

• SDMMC3_1P8_EN=0toselect3.3VforSDcard.

ItisvalidwhenRSMRST_B=1(de-asserted)andCOREPWROK=1(asserted).

7.1.29 SDMMC3_PWR_EN_B

SDMM3_PWR_EN_BisanactivelowdedicatedoutputsignaltoenableSDcardpower.ItisvalidwhenRSMRST_B=1

(de-asserted)andCOREPWROK=1(asserted).

7.1.30 MODEM_OFF_B

7.1.31 SDWN_B

TheSDWN_B (Shut-Down Warning) signal is sentby the PMICtothe modem asawarningthata system shutdown

eventisabouttotakeplace.TheSDWN_Bsignalisasserted(setlow)duringpowerdownTaskLists.IfthePMICentersa

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ADC 6021 Specifiche Pagina 19