 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
HT66F019 Datasheet(PDF) 134 Page - Holtek Semiconductor Inc |
|
|
|||||||||||||||||||||||||||||
HT66F019 Datasheet(HTML) 134 Page - Holtek Semiconductor Inc |
|
|
134 / 175 page  Rev. 1.00 134 De�e��e� 01� �01� Rev. 1.00 135 De�e��e� 01� �01� HT66F019 A/D Flash MCU with EEPROM HT66F019 A/D Flash MCU with EEPROM Bit3 RIDLE:Receiverstatus 0:Datareceptionisinprogress(Databeingreceived) 1:Nodatareceptionisinprogress(Receiverisidle) TheRIDLEflagisthereceiverstatusflag.Whenthisreadonlyflagis"0",itindicates thatthereceiverisbetweentheinitialdetectionofthestartbitandthecompletionof thestopbit.Whentheflagis"1",itindicatesthatthereceiverisidle.Betweenthe completionofthestopbitandthedetectionofthenextstartbit,theRIDLEbitis"1" indicatingthattheUARTreceiverisidleandtheRXpinstaysinlogichighcondition. Bit2 RXIF:ReceiveTXR_RXRdataregisterstatus 0:TXR_RXRdataregisterisempty 1:TXR_RXRdataregisterhasavailabledata TheRXIFflagisthereceivedataregisterstatusflag.Whenthisreadonlyflagis"0", itindicatesthattheTXR_RXRreaddataregisterisempty.Whentheflagis"1",it indicatesthattheTXR_RXRreaddataregistercontainsnewdata.Whenthecontents oftheshiftregisteraretransferredtotheTXR_RXRregister,aninterruptisgenerated ifRIE=1intheUCR2register.Ifoneormoreerrorsaredetectedinthereceivedword, theappropriatereceive-relatedflagsNF,FERR,and/orPERRaresetwithinthesame clockcycle.TheRXIFflagwilleventuallybeclearedto0whentheUSRregisteris readwithRXIFset,followedbyareadfromtheTXR_RXRregister,andiftheTXR_ RXRregisterhasnomorenewdataavailable. Bit1 TIDLE:Transmissionidle 0:Datatransmissionisinprogress(Databeingtransmitted) 1:Nodatatransmissionisinprogress(Transmitterisidle) TheTIDLEflagisknownasthetransmissioncompleteflag.Whenthisreadonly flagis"0",itindicatesthatatransmissionisinprogress.Thisflagwillbesethigh whentheTXIFflagis"1"andwhenthereisnotransmitdataorbreakcharacterbeing transmitted.WhenTIDLEisequalto"1",theTXpinbecomesidlewiththepinstate inlogichighcondition.TheTIDLEflagisclearedto0byreadingtheUSRregister withTIDLEsetandthenwritingtotheTXR_RXRregister.Theflagisnotgenerated whenadatacharacterorabreakisqueuedandreadytobesent. Bit0 TXIF:TransmitTXR_RXRdataregisterstatus 0:Characterisnottransferredtothetransmitshiftregister 1:Characterhastransferredtothetransmitshiftregister(TXR_RXRdataregisteris empty) TheTXIFflagisthetransmitdataregisteremptyflag.Whenthisreadonlyflagis"0", itindicatesthatthecharacterisnottransferredtothetransmittershiftregister.When theflagis"1",itindicatesthatthetransmittershiftregisterhasreceivedacharacter fromtheTXR_RXRdataregister.TheTXIFflagisclearedto0byreadingtheUART statusregister(USR)withTXIFsetandthenwritingtotheTXR_RXRdataregister. NotethatwhentheTXENbitisset,theTXIFflagbitwillalsobesetsincethetransmit dataregisterisnotyetfull. |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
