User`s guide

Rev. 1.10 36 November 14, 2014 Rev. 1.10 37 November 14, 2014
HT66FW2230
Wireless Charger A/D Flash 8-Bit MCU
HXTC Register
Bit 7 6 5 4 3 2 1 0
Name — — — — — — HXTF HXTEN
R/W — — — — — — R R/W
POR — — — — — — 0 0
Bit7~4 Unimplemented,readas“0”
Bit1 HXTF:HXTclockstableag
0:unstable
1:stable
ThisbitisusedtoindicatewhethertheHXToscillatorisstableornot.Whenthe
HXTENbitissetto1toenabletheHXToscillator,theHXTFbitwillberstcleared
to“0”andthensetto“1”aftertheHXToscillatorisstable.
Bit0 HXTEN:HXToscillatorenablecontrol
0:disable
1:enable
HIRCC Register
Bit 7 6 5 4 3 2 1 0
Name — — — — — — HIRCF HIRCEN
R/W — — — — — — R R/W
POR — — — — — — 0 1
Bit7~2 Unimplemented,readas“0”
Bit1 HIRCF:HIRCclockstableag
0:unstable
1:stable
WhentheHIRCoscillatorisenabledandtheHIRCfrequencyischangedby
applicationprogram,thisbitwillrstbeclearedto“0”andthensetto“1”afterthe
HIRCoscillatorisstable.
Bit0 HIRCEN:HIRCoscillatorenablecontrol
0:disable
1:enable
Operating Mode Switching
Thedevicecanswitchbetweenoperatingmodesdynamicallyallowingtheusertoselectthebest
performance/powerratioforthepresenttaskinhand.Inthiswaymicrocontrolleroperationsthat
donotrequirehighperformancecanbeexecutedusingslowerclocksthusrequiringlessoperating
currentandprolongingbatterylifeinportableapplications.
Insimpleterms,ModeSwitchingbetweentheNORMALModeandSLOWModeisexecutedusing
theCKS2~CKS0bitsintheSCCregisterwhileModeSwitchingfromtheNORMAL/SLOWModes
totheSLEEP/IDLEModesisexecutedviatheHALTinstruction.WhenanHALTinstructionis
executed,whetherthedeviceenterstheIDLEModeortheSLEEPModeisdeterminedbythe
conditionoftheFHIDENandFSIDENbitintheSCCregister.