HT45F5Q-2 datasheet(21/117 Pages) HOLTEK

21 / 117 page

Rev. 1.00

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HT45F5Q-2

Charger Flash MCU

HT45F5Q-2

Charger Flash MCU

However,thetwoOCDSpinswhicharepin-sharedwiththeICPprogrammingpinsarestillused

astheFlashMemoryprogrammingpinsforICP.FormoredetailedOCDSinformation,refertothe

correspondingdocumentnamed"Holteke-Linkfor8-bitMCUOCDSUser’sGuide".

Holtek e-Link Pins

EV Chip Pins

Pin Description

OCDSDA

PA0

On-Chip Deb�g S�pport Data/Address inp�t/o�tp�t

OCDSCK

PA�

On-Chip Deb�g S�pport C�ock inp�t

VDD

Power S�pp��

VSS

Gro�nd

Data Memory

TheDataMemoryisavolatileareaof8-bitwideRAMinternalmemoryandisthelocationwhere

temporaryinformationisstored.

Structure

Dividedintotwotypes,thefirstoftheseisanareaofRAM,knownastheSpecialFunctionData

Memory.Herearelocatedregisterswhicharenecessaryforcorrectoperationofthedevice.Many

oftheseregisterscanbereadfromandwrittentodirectlyunderprogramcontrol,however,some

remainprotectedfromusermanipulation.ThesecondareaofDataMemoryisknownastheGeneral

PurposeDataMemory,whichisreservedforgeneralpurposeuse.Alllocationswithinthisareaare

readandwriteaccessibleunderprogramcontrol.

TheoverallDataMemoryissubdividedintotwobanks.TheSpecialPurposeDataMemoryregisters

addressedfrom00H~3FHinDataMemoryarecommonandaccessibleinBank0andtheEEC

registerattheaddress40HinBank1.SwitchingbetweenthedifferentDataMemorybanksis

achievedbysettingtheBankPointertothecorrectvalue.ThestartaddressoftheDataMemoryfor

thedeviceistheaddress00H.

Special Purpose Data Memory

General Purpose Data Memory

Available Banks

Banks

Capacity

Banks

0�1

Bank 0: 00H~3FH

Bank 1: 40H (EEC)

1�8× 8

Bank 0: 40H~BFH

Data Memory Summary

Data Memory Structure

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