Holtek HT66F30 User Manual

Rev. 2.50 232 June 22, 2017 Rev. 2.50 233 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
UART Module Serial Interface
UART Module Features
• InterconnectedtoHoltekMCUviaSPIinterface
• Full-duplex,UniversalAsynchronousReceiverandTransmitter(UART)communication
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♦
8or9bitcharacterlength
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Even,oddornoparityoptions
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Oneortwostopbits
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♦
Baudrategeneratorwith8-bitprescaler
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Parity,framing,noiseandoverrunerrordetection
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Supportforinterruptonaddressdetect
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AddressDetectInterrupt-lastcharacterbit=1
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Transmitterandreceiverenabledindependently
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♦
4-bytedeepFIFOreceiverdatabuffer

♦
TransmitandReceiveMultipleInterruptGenerationSources:
– TransmitterEmpty
– TransmitterIdle
– ReceiverFull
– ReceiverOverrun
– AddressModeDetect

♦
TXpinishighimpedancewhentheUARTtransmitmoduleisdisabled

♦
RXpinishighimpedancewhentheUARTreceivemoduleisdisabled
• CMOSclockinput,CLKI,upto20MHzat5Voperatingvoltage
UART Module Overview
Thedevicecontainsafullyembeddedfull-duplexasynchronousserialcommunicationsUART
interfacethatenablesdatatransmissionanddatareceptionwithexternaldevices.Possible
applicationscouldincludedatacommunicationnetworksbetweenmicrocontrollers,low-costdata
linksbetweenPCsandperipheraldevices,portableandbatteryoperateddevicecommunication,
factoryautomationandprocesscontroltonamebutafew.
UART Module Block Diagram
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 
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 
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
  
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  

Holtek HT66F30 Specifications

General

Brand	Holtek
Model	HT66F30
Category	Computer Hardware
Language	English