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MC33912_10 Datasheet, PDF (73/94 Pages) Freescale Semiconductor, Inc – LIN System Basis Chip with DC Motor Pre-driver and Current Sense
MC33912BAC / MC34912BAC
FUNCTIONAL DEVICE OPERATIONS
OPERATIONAL MODES
Power
Down
Power Up
Normal RNoerqmuael RsetqTueimstetimoueotuEt exxppiirreedd(N(tRNTROUTTO) UT)
VVDDDD LLooww
Reset
VDD High and
VDRDeHsigeht aDndelRaeyse(ttDReSlTay) (EtRxSTp) ierxepdired
Normal
Request
VVDDDD LLooww
WDWDFafaiilleedd
Normal
VVDDDDLLowO(W>NR(>TOtUNT)ReTxOpiUreTd) Expired
andaVnSdUVV S= U0 V = 0
SleSeLpEECPoCmommmaanndd
WWakaeke--uUpp ((RReessete) t)
Sleep
Stop
VDVDDD LLooww
Legend
WD: Watchdog
WD DisableNdo:teWsa: tchdog disabled (WDCONF pin connected to GND)
WD TriggerW: WD a-tcmhedaongsisWtaritgcghedroegd by SPI command
WD Failed:WNDo dwiasatcbhleddog- tmrigegaenrsoWr atrticghgdeorgodccisuarbsleind c(WlosDeCdOwNinFdtoewrminal connected to GND)
Stop CommWaDndt:riSggtoepr –commemanasndWsaetcnht dvoiag SisPtIriggered by SPI command
Sleep ComWmaDnfda:ileSdle–epmceoamnsmnaondWsaetcnhtdvoiag StriPgIger or trigger occurs in closed window
Wake-Up
Wake-Up
ffrrSSoomTLmEOSESPlPteoCepCopomMMmmoomdadeaen:n:dLdL11- ,-,mLLme22ea,,anLLns33sSooSTrrLOLLE4P4EsscPttoaactmteoemmcchamhanaandnngsgdeee,sn,LetLInNvIdNiabvubSiasuPswSI wPakIaek-eu-pu,pP, ePreiordioicdiwcawkaek-uep-u. p,
CS
rising
edge
wake-up
or
RST
wake-up.
Wake-Up - means L1 or L2 state change or LIN bus wake up or SS rising edge
Figure 38. Operating Modes and Transitions
Analog Integrated Circuit Device Data
Freescale Semiconductor
33912
73