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HT45F77 Datasheet(PDF) 27 Page - Holtek Semiconductor Inc

Part # HT45F77
Description  Body Fat Scale Flash MCU
PDF  203 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F77 Datasheet(HTML) 27 Page - Holtek Semiconductor Inc

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Rev. 1.20
2�
De�e��e� 1�� 201�
Rev. 1.20
27
De�e��e� 1�� 201�
HT45F77
Body Fat Scale Flash MCU
HT45F77
Body Fat Scale Flash MCU
FC0 Register
Bit
7
6
5
4
3
2
1
0
Na�e
CFWEN
FMOD2
FMOD1
FMOD0
FWPEN
FWT
FRDEN
FRD
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
1
1
1
0
0
0
0
Bit7
CFWEN:FlashMemoryWriteenablecontrol
0:Flashmemorywritefunctionisdisabled
1:Flashmemorywritefunctionhasbeensuccessfullyenabled
Whenthisbitisclearedto0byapplicationprogram,theFlashmemorywritefunction
isdisabled.Notethatwritinga"1"intothisbitresultsinnoaction.Thisbitisused
toindicatethattheFlashmemorywritefunctionstatus.Whenthisbitissetto1by
hardware,itmeansthattheFlashmemorywritefunctionisenabledsuccessfully.
Otherwise,theFlashmemorywritefunctionisdisabledasthebitcontentiszero.
Bit6~4
FMOD2~FMOD0:Modeselection
000:Writeprogrammemory
001:Pageeraseprogrammemory
010:Reserved
011:Readprogrammemory
100:Reserved
101:Reserved
110:FWRNmode–Flashmemorywritefunctionenablemode
111:Reserved
Bit3
FWPEN:FlashMemoryWriteprocedureenablecontrol
0:Disable
1:Enable
Whenthisbitissetto1andtheFMODfieldissetto"110",theIAPcontrollerwill
executethe"Flashmemorywritefunctionenable"procedure.OncetheFlashmemory
writefunctionissuccessfullyenabled,itisnotnecessarytosettheFWPENbitany
more.
Bit2
FWT:FlashROMwritecontrolbit
0:DonotinitiateFlashmemorywriteorFlashmemorywriteprocessiscompleted
1:InitiateFlashmemorywriteprocess
ThisbitissetbysoftwareandclearedbyhardwarewhentheFlashmemorywrite
processiscompleted.
Bit1
FRDEN:Flashmemoryreadenabledbit
0:Flashmemoryreaddisable
1:Flashmemoryreadenable
Bit0
FRD:Flashmemoryreadcontrolbit
0:DonotinitiateFlashmemoryreadorFlashmemoryreadprocessiscompleted
1:InitiateFlashmemoryreadprocess
ThisbitissetbysoftwareandclearedbyhardwarewhentheFlashmemoryread
processiscompleted.
FC1 Register
Bit
7
6
5
4
3
2
1
0
Na�e
D7
D�
D5
D�
D3
D2
D1
D0
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit7~0
55H:wholechipreset
Whenuserwrites55Htothisregister,itwillgeneratearesetsignaltoresetwholechip.



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