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HT45F65 Datasheet(PDF) 169 Page - Holtek Semiconductor Inc |
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HT45F65 Datasheet(HTML) 169 Page - Holtek Semiconductor Inc |
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169 / 231 page  Rev. 1.60 168 �ove��e� ��� �01� Rev. 1.60 169 �ove��e� ��� �01� HT45F65/HT45F66/HT45F67 Glucose Meter 8-Bit Flash MCU • SPI1C1 Register Bit 7 6 5 4 3 2 1 0 �a�e — — S1CKPOL S1CKEG S1MLS S1CSE� S1WCOL S1TRF R/W — — R/W R/W R/W R/W R/W R/W POR — — 0 0 0 0 0 0 Bit7~6 Unimplemented,readas"0" Thisbitcanbereadorwrittenbyusersoftwareprogram. Bit5 S1CKPOL:Determinesthebaseconditionoftheclockline 0:SCK1linewillbehighwhentheclockisinactive 1:SCK1linewillbelowwhentheclockisinactive TheS1CKPOLbitdeterminesthebaseconditionoftheclockline,ifthebitishigh, thentheSCK1linewillbelowwhentheclockisinactive.WhentheS1CKPOLbitis low,thentheSCK1linewillbehighwhentheclockisinactive. Bit4 S1CKEG:DeterminestheSPI1SCK1activeclockedgetype S1CKPOL=0: 0:SCK1hashighbaselevelwithdatacaptureonSCK1risingedge 1:SCK1hashighbaselevelwithdatacaptureonSCK1fallingedge S1CKPOL=1: 0:SCK1haslowbaselevelwithdatacaptureonSCK1fallingedge 1:SCK1haslowbaselevelwithdatacaptureonSCK1risingedge TheS1CKEGandS1CKPOLbitsareusedtosetupthewaythattheclocksignal outputsandinputsdataontheSPIbus.Thesetwobitsmustbeconfiguredbeforea datatransferisexecutedotherwiseanerroneousclockedgemaybegenerated.The S1CKPOLbitdeterminesthebaseconditionoftheclockline,ifthebitishigh,thenthe SCK1linewillbelowwhentheclockisinactive.WhentheS1CKPOLbitislow,then theSCK1linewillbehighwhentheclockisinactive.TheS1CKEGbitdetermines activeclockedgetypewhichdependsupontheconditionoftheS1CKPOLbit. Bit3 S1MLS:MSB/LSBFirstBit 0:LSBshiftfirst 1:MSBshiftfirst Thisisthedatashiftselectbitandisusedtoselecthowthedataistransferred,either MSBorLSBfirst.SettingthebithighwillselectMSBfirstandlowforLSBfirst. Bit2 S1CSEN:SelectSignalEnable/DisableBit 0:SCS1B0andSCS1B1floating 1:Enable TheS1CSENbitisusedasanenable/disablefortheSCS1B0andSCS1B1pin.If thisbitislow,thentheSCS1B0andSCS1B1pinwillbedisabledandplacedintoa floatingcondition.IfthebitishightheSCS1B0andSCS1B1pinwillbeenabledand usedasaselectpin.NotethatusingtheS1CSENbitcanbedisabledorenabledvia configurationoption. Bit1 S1WCOL:WriteCollisionBit 0:Collisionfree 1:Collisiondetected TheS1WCOLflagisusedtodetectifadatacollisionhasoccurred.Ifthisbitishigh itmeansthatdatahasbeenattemptedtobewrittentotheSPI1Dregisterduringadata transferoperation.Thiswritingoperationwillbeignoredifdataisbeingtransferred. Thebitcanbeclearedbytheapplicationprogram.NotethatusingtheS1WCOLbit canbedisabledorenabledviaconfigurationoption. Bit0 S1TRF:Transmit/ReceiveFlag 0:Notcomplete 1:Transmission/receptioncomplete TheS1TRFbitistheTransmit/ReceiveCompleteflagandisset"1"automatically whenanSPI1datatransmissioniscompleted,butmustsettozerobytheapplication program.Itcanbeusedtogenerateaninterrupt. |
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