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HT45F56 数据表(PDF) 44 Page - Holtek Semiconductor Inc

部件名 HT45F56
功能描述  Shock Detector Flash MCU
PDF  90 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT45F56 数据表(HTML) 44 Page - Holtek Semiconductor Inc

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Rev. 1.11
44
April 11, 2017
Rev. 1.11
45
April 11, 2017
HT45F56
Shock Detector Flash MCU
HT45F56
Shock Detector Flash MCU
• SMOD1 Register
Bit
7
6
5
4
3
2
1
0
Name
FSYSON
—
—
—
RSTF
LVRF
—
WRF
R/W
R/W
—
—
—
R/W
R/W
—
R/W
POR
0
—
—
—
0
x
—
0
“x”: unknown
Bit7
FSYSON:fSYScontrolinIDLEmode
Describedelsewhere.
Bit6~4
Unimplemented,readas“0”
Bit3
RSTF:Resetcontrolregistersoftwareresetflag
Describedelsewhere.
Bit2
LVRF:LVRfunctionresetflag
0:Notoccurred
1:Occurred
Thisbitissetto1whenaspecificlowvoltageresetconditionoccurs.Notethatthisbit
canonlybeclearedto0bytheapplicationprogram.
Bit1
Unimplemented,readas“0”
Bit0
WRF:WDTcontrolregistersoftwareresetflag
Describedelsewhere.
Watchdog Time-out Reset during Normal Operation
TheWatchdogtime-outResetduringnormaloperationisthesameasthehardwareLowVoltage
ResetexceptthattheWatchdogtime-outflagTOwillbesetto“1”.
WDT Time-out
Internal Reset
tRSTD + tSST
Note:tRSTDispower-ondelaywithtypicaltime=16.7ms
WDT Time-out Reset during NORMAL Operation Timing Chart
Watchdog Time-out Reset during SLEEP or IDLE Mode
TheWatchdogtime-outResetduringSLEEPorIDLEModeisalittledifferentfromotherkinds
ofreset.MostoftheconditionsremainunchangedexceptthattheProgramCounterandtheStack
Pointerwillbeclearedto“0”andtheTOflagwillbesetto“1”.RefertotheA.C.Characteristicsfor
tSST
details.
WDT Time-out
Internal Reset
tSST
WDT Time-out Reset during SLEEP or IDLE Mode Timing Chart



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