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HT45R2K-C 数据表(PDF) 32 Page - Holtek Semiconductor Inc

部件名 HT45R2K-C
功能描述  Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale
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制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT45R2K-C 数据表(HTML) 32 Page - Holtek Semiconductor Inc

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Rev. 1.40
3�
�a��� 1�� �01�
Rev. 1.40
33
�a��� 1�� �01�
HT45R2K-C/-B/-A
Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale
HT45R2K-C/-B/-A
Dual Slope 16K/8K/4K ASSP MCU for Body Fat Scale
Co nt ro l
Logi c
WD T So ur ce
Co nf ig ur at io n
Op ti on
CL R WD T1 F la g
CL R WD T2 F la g
1/ 2 In st ru ct i ons
f SY S /4
f LI RC
WD T
PW R
LI RC
OS C
V OC HP
V OR EG
LI RC OS C
En ab le
f S1 15 -B it C oun te r
WD T Di vi si on
WS 2~ WS 0
CL R
2 8 /f S , 2 9 /f S , 2 10 /f S ,
2 11 /f S , 2 12 /f S , 2 13 /f S ,
2 14 /f S , 2 15 /f S
b4~ b11
WD T
EN /D IS
WD T
Ti me -o ut
Da ta B us
LX T
OS C
LX T OS C
En ab le
f LX T
Watchdog Timer
WDTC Register
Bit
7
6
5
4
3
2
1
0
Name
WS�
WS1
WS0
LIRCEN1 LIRCEN0 LIRCPWR1 LIRCPWR0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
1
1
1
s
s
0
1
Bit7~5
WS2~WS0:WDTprescalerrateselect
000:28/fS
001:2
9/fS
010:2
10/fS
011:2
11/fS
100:2
12/fS
101:213/fS
110:2
14/fS
111:2
15/fS
Bit4
unimplemented,readas"0"
Bit3~2
LIRCEN1~ LIRCEN0:LIRCoscillatorenable/disablecontrolbits
00:LIRCoscillatorisenabled
01:LIRCoscillatorisdisabled
10:LIRCoscillatorisenabled
11:LIRCoscillatorisenabled
Itisstronglyrecommendedtouse“10”forWDTOSCenable
Bit1~0
LIRCPWR1~ LIRCPWR0:LIRCPowerSourceSelect
00:WDTpowercomesfromVOCHP
01:WDTpowercomesfromVOCHP
10:WDTpowercomesfromRegulator
11:WDTpowercomesfromVOCHP
Itisstronglyrecommendedtouse“01”forVOCHPtopreventthenoisetoletthe
WDTlosethepower
TheWDTclock(fS)isfurtherdividedbyaninternalcountertogivelongerwatchdog
time-outperiod.Inthisdevice,thedivisionratiocanbevariedbyselectingdifferent
valuesofWS2~WS0bitstogive28/fSto215/fSdivisionratiorange.


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