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Holtek HT66F002 User Manual

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Rev. 1.71 58 April 11, 2017 Rev. 1.71 59 April 11, 2017
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
PCPU Register ā€“ HT66F004
Bit 7 6 5 4 3 2 1 0
Name ā€” ā€” ā€” ā€” ā€” D2 D1 D0
R/W ā€” ā€” ā€” ā€” ā€” R/W R/W R/W
POR ā€” ā€” ā€” ā€” ā€” 0 0 0
Bitī˜ƒ7~3ī˜ƒ Unimplemented,ī˜ƒreadī˜ƒasī˜ƒ0
Bitī˜ƒ2~0ī˜ƒ I/Oī˜ƒPortī˜ƒCī˜ƒbitī˜ƒ2~ī˜ƒbitī˜ƒ0ī˜ƒPull-Highī˜ƒControl
0:ī˜ƒDisable
1:ī˜ƒEnable
Port A Wake-up
Theī˜ƒHALTī˜ƒinstructionī˜ƒforcesī˜ƒtheī˜ƒmicrocontrollerī˜ƒintoī˜ƒtheī˜ƒSLEEPī˜ƒorī˜ƒIDLEī˜ƒModeī˜ƒwhichī˜ƒpreservesī˜ƒ
power,ī˜ƒaī˜ƒfeatureī˜ƒthatī˜ƒisī˜ƒimportantī˜ƒforī˜ƒbatteryī˜ƒandī˜ƒotherī˜ƒlow-powerī˜ƒapplications.ī˜ƒVariousī˜ƒmethodsī˜ƒ
existī˜ƒtoī˜ƒwake-upī˜ƒtheī˜ƒmicrocontroller,ī˜ƒoneī˜ƒofī˜ƒwhichī˜ƒisī˜ƒtoī˜ƒchangeī˜ƒtheī˜ƒlogicī˜ƒconditionī˜ƒonī˜ƒoneī˜ƒofī˜ƒtheī˜ƒPortī˜ƒ
Aī˜ƒpinsī˜ƒfromī˜ƒhighī˜ƒtoī˜ƒlow.ī˜ƒThisī˜ƒfunctionī˜ƒisī˜ƒespeciallyī˜ƒsuitableī˜ƒforī˜ƒapplicationsī˜ƒthatī˜ƒcanī˜ƒbeī˜ƒwokenī˜ƒupī˜ƒ
viaī˜ƒexternalī˜ƒswitches.ī˜ƒEachī˜ƒpinī˜ƒonī˜ƒPortī˜ƒAī˜ƒcanī˜ƒbeī˜ƒselectedī˜ƒindividuallyī˜ƒtoī˜ƒhaveī˜ƒthisī˜ƒwake-upī˜ƒfeatureī˜ƒ
usingī˜ƒtheī˜ƒPAWUī˜ƒregister.
PAWU Register
Bit 7 6 5 4 3 2 1 0
Name D7 D6 D5 D4 D3 D2 D1 D0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
POR 0 0 0 0 0 0 0 0
B
itī˜ƒ7ī˜ƒ~ī˜ƒ0ī˜ƒ I/Oī˜ƒPortī˜ƒAī˜ƒbitī˜ƒ7ī˜ƒ~ī˜ƒbitī˜ƒ0ī˜ƒWakeī˜ƒUpī˜ƒControl
0:ī˜ƒDisable
1:ī˜ƒEnable
I/O Port Control Registers
Eachī˜ƒI/Oī˜ƒportī˜ƒhasī˜ƒitsī˜ƒownī˜ƒcontrolī˜ƒregisterī˜ƒknownī˜ƒasī˜ƒPAC~PCC,ī˜ƒtoī˜ƒcontrolī˜ƒtheī˜ƒinput/outputī˜ƒ
configuration.ī˜ƒWithī˜ƒtheseī˜ƒcontrolī˜ƒregisters,ī˜ƒeachī˜ƒCMOSī˜ƒoutputī˜ƒorī˜ƒinputī˜ƒcanī˜ƒbeī˜ƒreconfiguredī˜ƒ
dynamicallyī˜ƒunderī˜ƒsoftwareī˜ƒcontrol.ī˜ƒEachī˜ƒpinī˜ƒofī˜ƒtheī˜ƒI/Oī˜ƒportsī˜ƒisī˜ƒdirectlyī˜ƒmappedī˜ƒtoī˜ƒaī˜ƒbitī˜ƒinī˜ƒitsī˜ƒ
associatedī˜ƒportī˜ƒcontrolī˜ƒregister.ī˜ƒForī˜ƒtheī˜ƒI/Oī˜ƒpinī˜ƒtoī˜ƒfunctionī˜ƒasī˜ƒanī˜ƒinput,ī˜ƒtheī˜ƒcorrespondingī˜ƒbitī˜ƒofī˜ƒtheī˜ƒ
controlī˜ƒregisterī˜ƒmustī˜ƒbeī˜ƒwrittenī˜ƒasī˜ƒaī˜ƒā€œ1ā€.ī˜ƒThisī˜ƒwillī˜ƒthenī˜ƒallowī˜ƒtheī˜ƒlogicī˜ƒstateī˜ƒofī˜ƒtheī˜ƒinputī˜ƒpinī˜ƒtoī˜ƒbeī˜ƒ
directlyī˜ƒreadī˜ƒbyī˜ƒinstructions.ī˜ƒWhenī˜ƒtheī˜ƒcorrespondingī˜ƒbitī˜ƒofī˜ƒtheī˜ƒcontrolī˜ƒregisterī˜ƒisī˜ƒwrittenī˜ƒasī˜ƒaī˜ƒā€œ0ā€,ī˜ƒ
theī˜ƒI/Oī˜ƒpinī˜ƒwillī˜ƒbeī˜ƒsetupī˜ƒasī˜ƒaī˜ƒCMOSī˜ƒoutput.ī˜ƒIfī˜ƒtheī˜ƒpinī˜ƒisī˜ƒcurrentlyī˜ƒsetupī˜ƒasī˜ƒanī˜ƒoutput,ī˜ƒinstructionsī˜ƒ
canī˜ƒstillī˜ƒbeī˜ƒusedī˜ƒtoī˜ƒreadī˜ƒtheī˜ƒoutputī˜ƒregister.ī˜ƒHowever,ī˜ƒitī˜ƒshouldī˜ƒbeī˜ƒnotedī˜ƒthatī˜ƒtheī˜ƒprogramī˜ƒwillī˜ƒinī˜ƒfactī˜ƒ
onlyī˜ƒreadī˜ƒtheī˜ƒstatusī˜ƒofī˜ƒtheī˜ƒoutputī˜ƒdataī˜ƒlatchī˜ƒandī˜ƒnotī˜ƒtheī˜ƒactualī˜ƒlogicī˜ƒstatusī˜ƒofī˜ƒtheī˜ƒoutputī˜ƒpin.
PAC Register
Bit 7 6 5 4 3 2 1 0
Name D7 D6 D5 D4 D3 D2 D1 D0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
POR 1 1 1 1 1 1 1 1
B
itī˜ƒ7ī˜ƒ~ī˜ƒ0ī˜ƒ I/Oī˜ƒPortī˜ƒAī˜ƒbitī˜ƒ7ī˜ƒ~ī˜ƒbitī˜ƒ0ī˜ƒInput/Outputī˜ƒControl
0:ī˜ƒOutput
1:ī˜ƒInput

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Holtek HT66F002 Specifications

General IconGeneral
BrandHoltek
ModelHT66F002
CategoryControl Unit
LanguageEnglish

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