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HT67F4892 Datasheet(PDF) 45 Page - Holtek Semiconductor Inc |
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HT67F4892 Datasheet(HTML) 45 Page - Holtek Semiconductor Inc |
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45 / 188 page  Rev. 1.00 �� �ove��e� ��� �01� Rev. 1.00 �5 �ove��e� ��� �01� HT67F4892 Enhanced A/D Flash MCU with LCD & EEPROM HT67F4892 Enhanced A/D Flash MCU with LCD & EEPROM Bit1 IDLEN:IDLEModecontrol 0:Disable 1:Enable ThisistheIDLEModeControlbitanddetermineswhathappenswhentheHALT instructionisexecuted.Ifthisbitishigh,whenaHALTinstructionisexecutedthe devicewillentertheIDLEMode.IntheIDLE1ModetheCPUwillstoprunning butthesystemclockwillcontinuetokeeptheperipheralfunctionsoperational,if FSYSONbitishigh.IfFSYSONbitislow,theCPUandthesystemclockwillallstop inIDLE0mode.IfthebitislowthedevicewillentertheSLEEPModewhenaHALT instructionisexecuted. Bit0 HLCLK:Systemclockselection 0:fH/2~fH/64orfSUB 1:fH ThisbitisusedtoselectifthefHclockorthefH/2~fH/64orfSUBclockisusedas thesystemclock.WhenthebitishighthefHclockwillbeselectedandiflowthe fH/2~fH/64orfSUBclockwillbeselected.WhensystemclockswitchesfromthefH clocktothefSUBclockandthefHclockwillbeautomaticallyswitchedofftoconserve power. CTRL Register Bit 7 6 5 4 3 2 1 0 �a�e FSYSO� — — — FSUBF LVRF LRF WRF R/W R/W — — — R/W R/W R/W R/W POR 0 — — — 0 x 0 0 "x" unknown Bit7 FSYSON:fSYSControlinIDLEMode 0:Disable 1:Enable Bit6~4 Unimplemented,readas"0" Bit3 FSUBF:FSUBCControlregistersoftwareresetflag 0:Notoccur 1:Occurred Thisbitissetto1iftheFSUB6~FSUB0bitsintheFSUBCregistercontainsanynon- definedvalues.Thisbitcanonlybeclearedto0bytheapplicationprogram. Bit2 LVRF:LVRfunctionresetflag Describedeleswhere Bit1 LRF:LVRControlregistersoftwareresetflag Describedeleswhere Bit0 WRF:WDTControlregistersoftwareresetflag Describedeleswhere |
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