參數(shù)資料
型號: RD38F1020C0ZBL0
廠商: INTEL CORP
元件分類: 存儲器
英文描述: 3 VOLT INTEL Advanced+BootBlock FlashMemory(C3)Stacked-ChipScalPackageFamilye
中文描述: SPECIALTY MEMORY CIRCUIT, PBGA66
封裝: 8 X 10 MM, 1.20 MM HEIGHT, SCSP-66
文件頁數(shù): 13/70頁
文件大?。?/td> 1223K
代理商: RD38F1020C0ZBL0
3VoltIntel
Advanced+BootBlockFlashMemoryStacked-CSPFamily
Datasheet
13
2.1.4
FlashReset
ThedeviceentersaresetmodewhenRP#isdrivenlow.Inresetmode,internalcircuitryisturned
offandoutputsareplacedinahigh-impedancestate.
Afterreturnfromreset,atimet
PHQV
isrequireduntiloutputsarevalid,andadelay(t
PHWL
or
t
PHEL
)isrequiredbeforeawritesequencecanbeinitiated.Afterthiswake-upinterval,normal
operationisrestored.Thedevicedefaultstoreadarraymode,thestatusregisterissetto80h,and
thereadconfigurationregisterdefaultstoasynchronousreads.
IfRP#istakenlowduringablockeraseorprogramoperation,theoperationwillbeabortedandthe
memorycontentsattheabortedlocationarenolongervalid.
2.1.5
Write
WritestoflashtakeplacewhenbothF-CE#andF-WE#areassertedandF-OE#isdeasserted.
WritestoSRAMtakeplacewhenbothS-CS1#andS-WE#areassertedandS-OE#andS-CS2are
deasserted.Commandsarewrittentotheflashmemory’sCommandUserInterface(CUI)using
standardmicroprocessorwritetimingstocontrolflashoperations.TheCUIdoesnotoccupyan
addressablememorylocationwithintheflashcomponent.Theaddressanddatabusesarelatched
ontherisingedgeofthesecondF-WE#orF-CE#pulse,whicheveroccursfirst.(See
Figure6
and
Figure7
forreadandwritewaveforms.)
3.0
FlashMemoryModesofOperation
Theflashmemoryhasfourreadmodes:readarray,readconfiguration,readstatus,andCFIquery.
Thewritemodesareprogramanderase.Threeadditionalmodes(erasesuspendtoprogram,erase
suspendtoreadandprogramsuspendtoread)areavailableonlyduringsuspendedoperations.
Thesemodesarereachedusingthecommandssummarizedin
Table 5,“FlashMemoryCommand
Definitions”onpage 17
.
3.1
ReadArray(FFh)
WhenF-RP#transitionsfromV
IL
(reset)toV
IH
,thedevicedefaultstoreadarraymodeandwill
respondtothereadcontrolinputswithoutanyadditionalCUIcommands.
Inaddition,theaddressofthedesiredlocationmustbeappliedtotheaddressballs.Ifthedeviceis
notinreadarraymode,aswouldbethecaseafteraprogramoreraseoperation,theReadArray
command(FFh)mustbewrittentotheCUIbeforearrayreadscantakeplace.
3.2
ReadIdentifier(90h)
Thereadconfigurationmodeoutputsthemanufacturer/deviceidentifier.Thedeviceisswitchedto
thismodebywritingthereadconfigurationcommand(90h).Onceinthismode,readcyclesfrom
addressesshownin
Table 4,“ReadConfigurationTable”onpage 14
retrievethespecified
information.Toreturntoreadarraymode,writetheReadArraycommand(FFh).
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