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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT45FM2C 데이터시트(PDF) 103 Page - Holtek Semiconductor Inc |
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HT45FM2C 데이터시트(HTML) 103 Page - Holtek Semiconductor Inc |
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103 / 171 page  Rev. 1.10 10� �a� �0� �01� Rev. 1.10 10� �a� �0� �01� HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU Preliminar� PWM Register Description OverallPWMoperationiscontrolledbyaseriesofregisters.TheDUTRL/DUTRHregisterpair isusedforPWMdutycontrolforadjustmentofthemotoroutputpower.ThePRDRL/PRDRH registerpairareusedtogethertoforma10-bitvaluetosetupthePWMperiodforPWMFrequency adjustment.BeingabletochangethePWMfrequencyisusefulformotorcharacteristicmatching forproblemssuchasnoisereductionandresonance.ThePWMRL/PWMRHregistersareusedto monitorthePWMcounterdynamically.ThePWMONbitinthePWMCregisteristhe10-bitPWM counteron/offbit.ThePWMclocksourceforthePWMcountercanbeselectedbyPCKS1~PCKS0 bitsinthePWMCregister.ItshouldbenotedthattheorderofwritingdatatoPWMregisterisMSB. PWMC Register Bit 7 6 5 4 3 2 1 0 Name — — PCKS1 PCKS0 PW�ON — — GATSEL R/W — — R/W R/W R/W — — R/W POR — — 0 0 0 — — 0 Bit7~6 Unimplemented,readas"0" Bit 5~4 PCKS1, PCKS0: ClocksourceofthePWMcounterselect 000: fPWM,PWMfrequencyMin.=20kHz,fPWMbaseon20MHz 001: fPWM/2,PWMfrequencyMin.=10kHz 010: fPWM/4,PWMfrequencyMin.=5kHz 011: fPWM/8,PWMfrequencyMin.=2.5kHz Bit 3 PWMON: PWMCircuitOn/Offcontrol 0: Off 1: On Thisbitcontrolstheoverallon/offfunctionofthePWM.Settingthebithighenables thecountertorun,clearingthebitdisablesthePWM.Clearingthisbittozerowill stopthecounterfromcountingandturnoffthePWMwhichwillreduceitspower consumption. Bit2~1 Unimplemented,readas"0" Bit 0 GATSEL: GATEDriveroutputselect 0:GAT/GAB/GBT/GBB/GCT/GCBareusedforGatedriveroutputpins 1:GAT/GAB/GBT/GBB/GCT/GCBareusedasPC[5:0] DUTRL Register Bit 7 6 5 4 3 2 1 0 Name D7 D6 D5 D4 D� D� D1 D0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 0 0 0 0 0 0 0 0 Bit7~0 10-bitPWMDutyregisterlowbyteregisterbit7~bit0 10-bitDUTRregisterbit7~bit0 |
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