Instruction(38h)
Byteꢀ 1 Byte
2
Byteꢀ3
Byte4
Mode
Mode
3
0
Byte
4
5
0
Byte
4
6
0
Byteꢀ7
Byteꢀ8 Byteꢀ9 Byteꢀ10 Byte
11 Byteꢀ12
Byte2
53 Byte
55 Byte2
254 Byte2
56
Mode
Mode
3
0
FM25Q64ꢀ
ꢀ
11.2.15ꢀQuadꢀPageꢀProgramꢀ(38h)ꢀ
Theꢀ Quadꢀ Pageꢀ Programꢀ instructionꢀ allowsꢀ 24ꢁbitꢀ addressꢀ andꢀ upꢀ toꢀ 256ꢀ bytesꢀ ofꢀ dataꢀ toꢀ beꢀ
programmedꢀatꢀpreviouslyꢀerasedꢀ(FFh)ꢀmemoryꢀlocationsꢀusingꢀfourꢀpins:ꢀIO0,ꢀIO1,ꢀIO2ꢀandꢀIO3.ꢀ
TheꢀQuadꢀPageꢀProgramꢀcanꢀimproveꢀperformanceꢀforꢀPROMꢀProgrammerꢀandꢀapplicationsꢀthatꢀ
haveꢀslowꢀclockꢀspeedꢀ<5MHz.ꢀSystemꢀwithꢀfasterꢀclockꢀspeedꢀwillꢀnotꢀrealizeꢀmuchꢀbenefitꢀforꢀtheꢀ
QuadꢀPageꢀProgramꢀinstructionꢀsinceꢀtheꢀinherentꢀpageꢀprogramꢀtimeꢀisꢀmuchꢀgreaterꢀthanꢀtheꢀ
timeꢀitꢀtakesꢀtoꢀclockꢁinꢀtheꢀdata.ꢀ
ꢀ
ToꢀuseꢀQuadꢀPageꢀProgramꢀtheꢀQuadꢀEnableꢀinꢀStatusꢀRegisterꢁ2ꢀmustꢀbeꢀsetꢀ(QE=1),ꢀAꢀWriteꢀ
Enableꢀ instructionꢀ mustꢀ beꢀ executedꢀ beforeꢀ theꢀ deviceꢀ willꢀ acceptꢀ theꢀ Quadꢀ Pageꢀ Programꢀ
instructionꢀ(StatusꢀRegisterꢁ1,ꢀWEL=1).ꢀTheꢀinstructionꢀisꢀinitiatedꢀbyꢀdrivingꢀtheꢀ/CSꢀpinꢀlowꢀthenꢀ
shiftingꢀtheꢀinstructionꢀcodeꢀ“38h”ꢀfollowedꢀbyꢀaꢀ24ꢁbitꢀaddressꢀ(A23ꢁA0)ꢀandꢀatꢀleastꢀoneꢀdata,ꢀintoꢀ
theꢀIOꢀpins.ꢀTheꢀ/CSꢀpinꢀmustꢀbeꢀheldꢀlowꢀforꢀtheꢀentireꢀlengthꢀofꢀtheꢀinstructionꢀwhileꢀdataꢀisꢀbeingꢀ
sentꢀtoꢀtheꢀdevice.ꢀAllꢀotherꢀfunctionsꢀofꢀQuadꢀPageꢀProgramꢀareꢀidenticalꢀstandardꢀPageꢀProgram.ꢀ
TheꢀQuadꢀPageꢀProgramꢀinstructionꢀsequenceꢀisꢀshownꢀinꢀfigureꢀ15.ꢀ
ꢀ
ꢀ
/ CS
11 12 13 14 15 16 17 18 19 20 21
10
0
1
2
3
4
5
6
7
8
9
CLK
6ꢀAddressꢀCycle
8
4
0
4
0
4
20 16 12
21 17 13
0
4
0
4
0
IO
0
IO
1
1
2
1
2
9
5
6
7
1
2
5
6
5
6
1
2
5
6
5
6
1
2
IO
2
10
11
18 14
22
3
3
3
IO
23 19 15
3
7
7
3
7
7
3
/CS
30 31
22 23 24 25 26 27 28 29
32 33 34 35 36 37
CLK
0
IO
4
0
4
0
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
0
4
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
IO
5
1
2
3
5
1
2
3
5
6
1
2
5
6
1
2
5
6
1
2
5
6
1
2
IO2
6
6
7
7
3
7
3
7
3
7
3
7
IO
3
ꢀ
Figureꢀ15.ꢀQuadꢀPageꢀProgramꢀInstructionꢀSequenceꢀDiagramꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
preliminary(Aug.18.2010)ꢀ ꢀ ꢀ ꢀ
31ꢀ
FIDELIX [ FIDELIX ]
