HT45F56 datasheet(34/90 Pages) HOLTEK

No. de pieza	HT45F56

Descripción Electrónicos	Shock Detector Flash MCU

PDF	90 Pages

Scroll/Zoom	100%

Fabricante Electrónico	HOLTEK [Holtek Semiconductor Inc]

Página de inicio	http://www.holtek.com

Logo

34 / 90 page

Rev. 1.11

April 11, 2017

Rev. 1.11

April 11, 2017

HT45F56

Shock Detector Flash MCU

HT45F56

Shock Detector Flash MCU

NORMAL Mode to SLOW Mode Switching

WhenrunningintheNORMALMode,whichusesthehighspeedsystemoscillator,andtherefore

consumesmorepower,thesystemclockcanswitchtorunintheSLOWModebysettingthe

HLCLKbitto“0”andsettingtheCKS2~CKS0bitsto“000”or“001”intheSMODregister.This

willthenusethelowspeedsystemoscillatorwhichwillconsumelesspower.Usersmaydecideto

dothisforcertainoperationswhichdonotrequirehighperformanceandcansubsequentlyreduce

powerconsumption.

TheSLOWModeissourcedfromtheLIRCoscillatorandthereforerequiresthisoscillatortobe

stablebeforefullmodeswitchingoccurs.ThisismonitoredusingtheLTObitintheSMODregister.

NORMAL Mode

SLOW Mode

CKS2~CKS0 = 00xB &

HLCLK = 0

SLEEP0 Mode

IDLEN=0, WDT is off,

HALT instruction is executed

IDLE0 Mode

IDLEN=1, FSYSON=0

HALT instruction is executed

IDLE1 Mode

HALT instruction is executed

IDLEN=0, WDT is on,

HALT instruction is executed

SLEEP1 Mode

IDLEN=1, FSYSON=1

HT45F56 Datasheet(PDF) 34 Page - Holtek Semiconductor Inc