BS83B08A-3/BS83B12A-3/BS83B16A-3
BS83B08A-4/BS83B12A-4/BS83B16A-4
8-Bit Touch Key Flash MCU
Entering the IDLE1 Mode
ThereꢀisꢀonlyꢀoneꢀwayꢀforꢀtheꢀdeviceꢀtoꢀenterꢀtheꢀIDLE1ꢀModeꢀandꢀthatꢀisꢀtoꢀexecuteꢀtheꢀ“HALT”ꢀ
instructionꢀinꢀtheꢀapplicationꢀprogramꢀwithꢀtheꢀIDLENꢀbitꢀinꢀSMODꢀregisterꢀequalꢀtoꢀ“1”ꢀandꢀtheꢀ
FSYSONꢀbitꢀinꢀCTRLꢀregisterꢀequalꢀtoꢀ“1”.ꢀWhenꢀthisꢀinstructionꢀisꢀexecutedꢀunderꢀtheꢀconditionsꢀ
describedꢀabove,ꢀtheꢀfollowingꢀwillꢀoccur:
•ꢀ TheꢀsystemꢀclockꢀandꢀtheꢀlowꢀfrequencyꢀfSUBꢀwillꢀbeꢀonꢀandꢀtheꢀapplicationꢀprogramꢀwillꢀstopꢀatꢀ
theꢀ“HALT”ꢀinstruction.
•ꢀ TheꢀDataꢀMemoryꢀcontentsꢀandꢀregistersꢀwillꢀmaintainꢀtheirꢀpresentꢀcondition.
•ꢀ TheꢀWDTꢀwillꢀbeꢀclearedꢀandꢀresumeꢀcounting.ꢀ
•ꢀ TheꢀI/Oꢀportsꢀwillꢀmaintainꢀtheirꢀpresentꢀconditions.
•ꢀ Inꢀtheꢀstatusꢀregister,ꢀtheꢀPowerꢀDownꢀflag,ꢀPDF,ꢀwillꢀbeꢀsetꢀandꢀtheꢀWatchdogꢀtime-outꢀflag,ꢀTO,ꢀ
willꢀbeꢀcleared.
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Rev. 1.00
4ꢁ
�aꢀ 0ꢁꢂ ꢁ01ꢃ
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
