 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
HT83B60 Datasheet(PDF) 36 Page - Holtek Semiconductor Inc |
|
|
|||||||||||||||||||||||||||||
HT83B60 Datasheet(HTML) 36 Page - Holtek Semiconductor Inc |
|
|
36 / 84 page  Rev. 1.00 36 De�e��e� 1�� �011 Rev. 1.00 37 De�e��e� 1�� �011 HT83B60 Voice Mask MCU HT83B60 Voice Mask MCU SPI Registers TheSIMDRA/Bregisterisusedtostorethedatabeingtransmittedandreceived.Therearetwo controlregistersassociatedwiththeSPIinterface,SIMC0A/BandSIMC2A/Bandonedataregister knownasSIMDRA/B.TheSIMC1A/BregisterisnotusedbytheSPIfunction.RegisterSIMC0 A/Bisusedtocontroltheenable/disablefunction,thepowerdowncontrolandtosetthedata transmissionclockfrequency.RegisterSIMC2A/BisusedforothercontrolfunctionssuchasLSB/ MSBselection,writecollisionflagetc. Thefollowinggivesfurtherexplanationofeachbit: • SIMENA/B TheA/Bbitistheoverallon/offcontrolfortheSPIinterface.WhentheA/Bbitisclearedto zerotodisabletheSPIinterface,theSDI,SDOA/B,SCKA/BandSCSA/Blineswillbeina floatingconditionandtheSPIoperatingcurrentwillbereducedto<0.1mAat5V.Whenthebitis hightheSPIinterfaceisenabled.NotethatwhentheSIMENA/Bbitchangesfromlowtohigh thecontentsoftheSPIcontrolregisterswillbeinanunknownconditionandshouldthereforebe initialisedbytheapplicationprogram. • SIM0A/B~SIM2A/B ThesethreebitscontroltheMaster/SlaveselectionandalsosetuptheSPIinterfaceclockspeed whenintheMasterMode.TheSPIclockisafunctionofthesystemclockwhetheritbeRCtype orCrystaltype.IftheSlaveModeisselectedthentheclockwillbesuppliedbytheexternal Masterdevice. Thefollowinggivesfurtherexplanationofeachbit: ♦ TRFA/B TheTRFA/BbitistheTransmit/ReceiveCompleteflagandisclearedbytheapplication programandcanbeusedtogenerateaninterrupt.Whenthebitishighthedatahasbeen transmittedorreceived.Ifthebitislowthedataisbeingtransmittedorhasnotyetbeen received. ♦ WCOLA/B TheWCOLA/Bbitisusedtodetectifadatacollisionhasoccurred.Ifthisbitishighitmeans thatdatahasbeenattemptedtobewrittentotheSMDRA/Bregisterduringadatatransfer operation.Thiswritingoperationwillbeignoredifdataisbeingtransferred.Thebitcanbe clearedbytheapplicationprogram.NotethatusingtheCSENA/Bbitcanbedisabledor enabledviaconfigurationoption. ♦ CSENA/B TheCSENA/Bbitisusedasanon/offcontrolfortheSCSA/Bpin.Ifthisbitislowthenthe SCSA/Bpinwillbedisabledandplacedintoafloatingcondition.IfthebitishightheSCSA/B pinwillbeenabledandusedasaselectpin. ♦ MLSA/B The MLS A/B is used to select how the data is transferred, either MSB or LSB first. Setting the bit high will select MSB first and low for LSB first. NotethattheSIMC2A/BregisteristhesameastheSIMARA/BregisterusedbytheI2C interface. |
|
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
