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HT66F4530 데이터시트(PDF) 139 Page - Holtek Semiconductor Inc |
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HT66F4530 데이터시트(HTML) 139 Page - Holtek Semiconductor Inc |
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139 / 224 page ![]() Rev. 1.00 138 De�e��e� �1� �01� Rev. 1.00 139 De�e��e� �1� �01� HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers • Step8 ClearTRF. • Step9 Gotostep4. • Slave Mode: • Step1 SelecttheSPISlavemodeusingtheSIM2~SIM0bitsintheSIMC0controlregister • Step2 SetuptheCSENbitandsetuptheMLSbittochooseifthedataisMSBorLSBfirst,thissetting mustbethesamewiththeMasterdevices. • Step3 SetuptheSIMENbitintheSIMC0controlregistertoenabletheSPIinterface. • Step4 Forwriteoperations:writethedatatotheSIMDregister,whichwillactuallyplacethedatainto theTXRXbuffer.ThenwaitforthemasterclockSCKandSCSsignal.Afterthis,gotostep5. Forreadoperations:thedatatransferredinontheSDIlinewillbestoredintheTXRXbuffer untilallthedatahasbeenreceivedatwhichpointitwillbelatchedintotheSIMDregister. • Step5 ChecktheWCOLbitifsethighthenacollisionerrorhasoccurredsoreturntostep4.Ifequalto zerothengotothefollowingstep. • Step6 ChecktheTRFbitorwaitforaSPIserialbusinterrupt. • Step7 ReaddatafromtheSIMDregister. • Step8 ClearTRF. • Step9 Gotostep4. Error Detection TheWCOLbitintheSIMC2registerisprovidedtoindicateerrorsduringdatatransfer.Thebitis setbytheSPIserialInterfacebutmustbeclearedbytheapplicationprogram.Thisbitindicatesa datacollisionhasoccurredwhichhappensifawritetotheSIMDregistertakesplaceduringadata transferoperationandwillpreventthewriteoperationfromcontinuing. |
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