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HT45F5N bảng dữ liệu(PDF) 56 Page - Holtek Semiconductor Inc

tên linh kiện HT45F5N
Giải thích chi tiết về linh kiện  Power Bank ASSP Flash MCU
PDF  202 Pages
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nhà sản xuất  HOLTEK [Holtek Semiconductor Inc]
Trang chủ  http://www.holtek.com
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HT45F5N bảng dữ liệu(HTML) 56 Page - Holtek Semiconductor Inc

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HT45F5N/HT45FH5N
Power Bank ASSP Flash MCU
HT45F5N/HT45FH5N
Power Bank ASSP Flash MCU
LVR
Inte�nal Reset
tRSTD + tSST
Note:tRSTDispower-ondelay,typicaltime=16.7ms
Low Voltage Reset Timing Chart
• LVRC Register
Bit
7
6
5
4
3
2
1
0
�a�e
LVS7
LVS�
LVS5
LVS4
LVS3
LVS�
LVS1
LVS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
1
0
1
0
1
0
1
Bit7~0
LVS7~LVS0:LVRvoltageselect
01010101:2.55V
00110011:2.55V
10011001:2.55V
10101010:2.55V
Othervalues:MCUreset(registerisresettoPORvalue).
Whenanactuallowvoltageconditionoccurs,anMCUresetwillbegenerated.Inthis
situationthisregistercontentswillremainthesameaftersucharesetoccurs.
Anyregistervalue,otherthanthedefinedvalueabove,willalsoresultinthe
generationofanMCUreset.TheresetoperationwillbeactivatedaftertSRESETtime.
HoweverinthissituationthisregistercontentswillberesettothePORvalue.
• CTRL Register
Bit
7
6
5
4
3
2
1
0
�a�e
FSYSO�
—
—
—
—
LVRF
LRF
WRF
R/W
R/W
—
—
—
—
R/W
R/W
R/W
POR
0
—
—
—
—
x
0
0
"x" unknown
Bit7
FSYSON:SystemclockfSYSControlinIDLEMode
Describedelsewhere.
Bit6~3
Unimplemented,readas"0"
Bit2
LVRF:LVRfunctionresetflag
0:Notoccur
1:Occurred
ThisbitissethighwhenaspecificLowVoltageResetsituationconditionoccurs.This
bitcanonlybeclearedtozerobytheapplicationprogram.
Bit1
LRF:LVRCControlregistersoftwareresetflag
0:Notoccur
1:Occurred
ThisbitissethighiftheLVRCregistercontainsanynon-definedLVRvoltageregister
values.Thisineffectactslikeasoftware-resetfunction.Thisbitcanonlybeclearedto
zerobytheapplicationprogram.
Bit0
WRF:WDTCControlregistersoftwareresetflag
Describedelsewhere.



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