參數(shù)資料
型號(hào)： RD28F3204C3T70
廠商： INTEL CORP
元件分類： 存儲(chǔ)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(yè)數(shù)： 52/70頁(yè)
文件大?。?/td> 1223K
代理商： RD28F3204C3T70
3VoltIntel
Advanced+BootBlockFlashMemoryStacked-CSPFamily
52
Datasheet
AppendixBCFIQueryStructure
Thisappendixdefinesthedatastructureor“database”returnedbytheCommonFlashInterface
(CFI)Querycommand.Systemsoftwareshouldparsethisstructuretogaincriticalinformation
suchasblocksize,density,x8/x16,andelectricalspecifications.Oncethisinformationhasbeen
obtained,thesoftwarewillknowwhichcommandsetstousetoenableflashwrites,blockerases,
andotherwisecontroltheflashcomponent.TheQueryispartofanoverallspecificationfor
multiplecommandsetandcontrolinterfacedescriptionscalledCommonFlashInterface,orCFI.
B.1
QueryStructureOutput
TheQuery“database”allowssystemsoftwaretogaininformationforcontrollingtheflash
component.Thissectiondescribesthedevice’sCFI-compliantinterfacethatallowsthehostsystem
toaccessQuerydata.
Querydataarealwayspresentedonthelowest-orderdataoutputs(DQ
0-7
)only.Thenumerical
offsetvalueistheaddressrelativetothemaximumbuswidthsupportedbythedevice.Onthis
familyofdevices,theQuerytabledevicestartingaddressisa10h,whichisawordaddressforx16
devices.
Foraword-wide(x16)device,thefirsttwobytesoftheQuerystructure,“Q”and“R”inASCII,
appearonthelowbyteatwordaddresses10hand11h.ThisCFI-compliantdeviceoutputs00hdata
onupperbytes.Thus,thedeviceoutputsASCII“Q”inthelowbyte(DQ
0-7
)and00hinthehigh
byte(DQ
8-15
).
AtQueryaddressescontainingtwoormorebytesofinformation,theleastsignificantdatabyteis
presentedattheloweraddress,andthemostsignificantdatabyteispresentedatthehigheraddress.
Inallofthefollowingtables,addressesanddataarerepresentedinhexadecimalnotation,sothe
“h”suffixhasbeendropped.Inaddition,sincetheupperbyteofword-widedevicesisalways
“00h,”theleading“00”hasbeendroppedfromthetablenotationandonlythelowerbytevalueis
shown.Anyx16deviceoutputscanbeassumedtohave00hontheupperbyteinthismode.
Table20. SummaryofQueryStructureOutputasaFunctionofDeviceandMode
Device
HexOffset
10:
11:
12:
Code
51
52
59
ASCIIValue
“Q”
“R”
“Y”
DeviceAddress
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RD28F3204W30B70 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:1.8 Volt Intel Wireless Flash Memory with 3 Volt I/O and SRAM (W30)
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