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Holtek HT66F30 User Manual

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Rev. 2.50 258 June 22, 2017 Rev. 2.50 259 June 22, 2017
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
• ThePCKcontrolbitissetto1toenablethePCKoutputastheclocksourcefortheUARTbaud
rategeneratorwithvariousPCKoutputfrequenciesdeterminedbythePCKP1andPCKP0bitsin
theSIMC0Register.
PCKoutputfrequencyselectionbitsPCKP1~PCKP0intheSIMC0Register
Bit 3 2
Name
PCKP1 PCKP0
value 11,10,01,00
00:PCKoutputfrequencyisf
SYS
01:PCKoutputfrequencyisf
SYS
/4
10:PCKoutputfrequencyisf
SYS
/8
11:PCKoutputfrequencyisTM0CCRPmatchfrequency/2
PCKoutputenablecontrolbitPCKENintheSIMC0Register
Bit 4
Name PCKEN
value 1
0:DisablePCKoutput
1:EnablePCKoutput
Aftertheabovesetupconditionshavebeenimplemented,theMCUcanenabletheSIMinterface
bysettingtheSIMENbithigh.TheMCUcanthenbegincommunicationwithexternalUART
connecteddevicesusingitsSPIinterface.ThedetailedMCUMasterSPIfunctionaldescriptionis
providedwithintheSerialInterfaceModulesectionoftheMCUdatasheet.
Application Circuit with UART Module



 
  


  



 
  







 






 





 
    
Note:*ItisrecommendedthatthiscomponentisaddedforaddedESDprotection.
**Itisrecommendedthatthiscomponentisaddedinenvironmentswherepowerlinenoiseissignicant.

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Holtek HT66F30 Specifications

General IconGeneral
BrandHoltek
ModelHT66F30
CategoryComputer Hardware
LanguageEnglish

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