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HT69F360 データシート(PDF) 67 Page - Holtek Semiconductor Inc |
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HT69F360 データシート(HTML) 67 Page - Holtek Semiconductor Inc |
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67 / 235 page  Rev. 1.30 �� �ove��e� 1�� �01� Rev. 1.30 �7 �ove��e� 1�� �01� HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM HXTC Register Bit 7 6 5 4 3 2 1 0 �a�e — — — — — HXTM HXTF HXTE� R/W — — — — — R/M R R/W POR — — — — — 0 0 0 Bit7~3 Unimplemented,readas"0" Bit2 HXTM:HXTmodeselection 0:HXTfrequency≤10MHz 1:HXTfrequency>10MHz ThisbitmustbeproperlyconfiguredbeforetheHXToscillatorisenabled.Whenthe HXTENbitissethigh,itisinvalidtochangethisbitvalue. Bit1 HXTF:HXTclockstableflag 0:Unstable 1:Stable ThisbitisusedtoindicatewhethertheHXToscillatorisstableornot.Whenbit HXTENissethightoenabletheHXToscillator,thisHXTFbitwillbeclearedto“0” andthenwillbesethighaftertheHXTclockisstable. Bit0 HXTEN:HXToscillatorenablecontrol. 0:Disable 1:Enable HIRCC Register Bit 7 6 5 4 3 2 1 0 �a�e — — — — HIRC1 HIRC0 HIRCF HIRCE� R/W — — — — R/W R/W R R/W POR — — — — 0 0 0 1 Bit7~4 Unimplemented,readas"0" Bit3~2 HIRC1~HIRC0:HIRCfrequencyselection 00:4MHz 01:4MHz 10:8MHz 11:12MHz WhentheHIRCoscillatorisenabledandtheHIRCfrequencyischangedby applicationprogram,theclockfrequencywillautomaticallybechangedafterthe HIRCFflagissetto1. Bit1 HIRCF:HIRCclockstableflag 0:Unstable 1:Stable ThisbitisusedtoindicatewhethertheHIRCoscillatorisstable.WhenHIRC frequencyisexchanged,theCPUwillstop16HIRCclocks.WhenbitHIRCENisset hightoenabletheHIRCoscillator,thisbitwillbeclearedto“0”andthenwillbeset highafterHIRCclockisstable.TheHIRCstabletimewillspend16clockswhenbit HIRCENisenabled. Bit0 HIRCEN:HIRCoscillatorenablecontrol. 0:Disable 1:Enable |
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