HT66F019 datasheet(131/175 Pages) HOLTEK

131 / 175 page

Rev. 1.00

130

De�e��e� 01� �01�

Rev. 1.00

131

De�e��e� 01� �01�

HT66F019

A/D Flash MCU with EEPROM

HT66F019

A/D Flash MCU with EEPROM

UART Interface

Thedevicecontainsanintegratedfull-duplexasynchronousserialcommunicationsUARTinterface

thatenablescommunicationwithexternaldevicesthatcontainaserialinterface.TheUARTfunction

hasmanyfeaturesandcantransmitandreceivedataseriallybytransferringaframeofdatawith

eightorninedatabitspertransmissionaswellasbeingabletodetecterrorswhenthedatais

overwrittenorincorrectlyframed.TheUARTfunctionpossessesitsowninternalinterruptwhich

canbeusedtoindicatewhenareceptionoccursorwhenatransmissionterminates.

TheintegratedUARTfunctioncontainsthefollowingfeatures:

• Full-duplex,asynchronouscommunication

• 8or9bitscharacterlength

• Even,oddornoparityoptions

• Oneortwostopbits

• Baudrategeneratorwith8-bitprescaler

• Parity,framing,noiseandoverrunerrordetection

• Supportforinterruptonaddressdetect(lastcharacterbit=1)

• Separatelyenabledtransmitterandreceiver

• 2-byteDeepFIFOReceiveDataBuffer

• RXpinwake-upfunction

• Transmitandreceiveinterrupts

• Interruptscanbeinitializedbythefollowingconditions:

♦

TransmitterEmpty

♦

TransmitterIdle

♦

ReceiverFull

♦

ReceiverOverrun

♦

AddressModeDetect

MSB

LSB

…………………………

T�ans�itte� Shift Registe� (TSR)

MSB

LSB

…………………………

Re�eive� Shift Registe� (RSR)

TX Pin

RX Pin

Baud Rate

Gene�ato�

TXR_RXR Registe�

Data to �e t�ans�itted

Data �e�eived

Buffe�

MCU Data Bus

UART Data Transfer Block Diagram

HT66F019 Datasheet(PDF) 131 Page - Holtek Semiconductor Inc

HT66F019 Datasheet(HTML) 131 Page - Holtek Semiconductor Inc

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