參數(shù)資料
型號： RD28F1602C3T90
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)： 14/70頁
文件大小： 1223K
代理商： RD28F1602C3T90
3VoltIntel
Advanced+BootBlockFlashMemoryStacked-CSPFamily
14
Datasheet
TheReadConfigurationmodeoutputsthreetypesofinformation:themanufacturer/device
identifier,theblocklockingstatus,andtheprotectionregister.Thedeviceisswitchedtothismode
bywritingtheReadConfigurationcommand(90h).Onceinthismode,readcyclesfromaddresses
showninTable4retrievethespecifiedinformation.Toreturntoreadarraymode,writetheRead
Arraycommand(FFh).
OtherlocationswithintheconfigurationaddressspacearereservedbyIntelforfutureuse.
3.3
ReadStatusRegister(70h)
Thestatusregisterindicatesthestatusofdeviceoperations,andthesuccess/failureofthat
operation.TheReadStatusRegister(70h)commandcausessubsequentreadstooutputdatafrom
thestatusregisteruntilanothercommandisissued.Toreturntoreadingfromthearray,issuea
ReadArray(FFh)command.
ThestatusregisterbitsareoutputonDQ[7:0].Theupperbyte,DQ[15:8],outputs00hduringa
ReadStatusRegistercommand.
ThecontentsofthestatusregisterarelatchedonthefallingedgeofF-OE#orF-CE#,whichever
occurslast.Thispreventspossiblebuserrorswhichmightoccurifstatusregistercontentschange
whilebeingread.F-CE#orF-OE#mustbetoggledwitheachsubsequentstatusread,orthestatus
registerwillnotindicatecompletionofaprogramoreraseoperation.
WhentheWSMisactive,SR7willindicatethestatusoftheWSM;theremainingbitsinthestatus
registerindicatewhethertheWSMwassuccessfulinperformingthedesiredoperation(see
Table 6,“FlashMemoryStatusRegisterDefinition”onpage 18
).
3.3.1
ClearStatusRegister(50h)
TheWSMsetsstatusbits1through7to“1,”andclearsbits2,6and7to“0,”butcannotclear
statusbits1or3through5to“0.”Becausebits1,3,4and5indicatevariouserrorconditions,these
bitscanonlybeclearedthroughtheuseoftheClearStatusRegister(50h)command.Byallowing
thesystemsoftwaretocontroltheresettingofthesebits,severaloperationsmaybeperformed
Table4. ReadConfigurationTable
Item
Address
Data
Notes
ManufacturerCode(x16)
0x00000
0x0089
DeviceID(SeeAppendixD)
0x00001
ID
BlockLockConfiguration
BlockIsUnlocked
BlockIsLocked
BlockIsLocked-Down
0xXX002
LOCK
1,2
DQ
0
= 0
DQ
0
= 1
DQ
1
= 1
ProtectionRegisterLock
0x80
PR-LK
3
ProtectionRegister(x16)
0x81-0x88
PR
NOTES:
1. See
Section3.7
forvalidlockstatusoutputs.
2. “XX”specifiestheblockaddressoflockconfigurationbeingread.
3. See
Section3.8
forprotectionregisterinformation.
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