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Rev. 1.10 22 November 14, 2014 Rev. 1.10 23 November 14, 2014

HT66FW2230

Wireless Charger A/D Flash 8-Bit MCU

On-Chip Debug Support – OCDS

ThereisanEVchipnamedHT66VW230whichisusedtoemulatetheHT66FW2230device.The

HT66VW230devicealsoprovidesthe“On-ChipDebug”functiontodebugtheHT66FW2230

deviceduringdevelopmentprocess.Thedevice,HT66FW2230,isalmostfunctionalcompatible

exceptthe“On-ChipDebug”functionandpackagetypes.UserscanusetheHT66VW230device

toemulatetheHT66FW2230devicebehaviorsbyconnectingtheOCDSDAandOCDSCKpinsto

theHoltekHT-IDEdevelopmenttools.TheOCDSDApinistheOCDSData/Addressinput/output

pinwhiletheOCDSCKpinistheOCDSclockinputpin.WhenusersusetheHT66VW230EV

chipfordebugging,thecorrespondingpinfunctionssharedwiththeOCDSDAandOCDSCKpins

intheHT66FW2230devicewillhavenoeffectintheHT66VW230EVchip.However,thetwo

OCDSpinswhicharepin-sharedwiththeICPprogrammingpinsarestillusedastheFlashMemory

programmingpinsforICP.FormoredetailedOCDSinformation,refertothecorresponding

documentnamed“Holteke-Linkfor8-bitMCUOCDSUser’sGuide”.

Holtek e-Link Pins EV Chip Pins

MCU Programming

Pins

Pin Description

OCDSDA OCDSDA PA0

On-chip Debug Support Data/Address

input/output

OCDSCK OCDSCK

PA2 On-chip Debug Support Clock input

VDD VDD VDD Power Supply

GND VSS VSS Ground

RAM Data Memory

TheDataMemoryisavolatileareaof8-bitwideRAMinternalmemoryandisthelocationwhere

temporaryinformationisstored.

Structure

Dividedintotwosections,therstoftheseisanareaofRAM,knownastheSpecialFunctionData

Memory.Herearelocatedregisterswhicharenecessaryforcorrectoperationofthedevice.Many

oftheseregisterscanbereadfromandwrittentodirectlyunderprogramcontrol,however,some

remainprotectedfromusermanipulation.ThesecondareaofDataMemoryisknownastheGeneral

PurposeDataMemory,whichisreservedforgeneralpurposeuse.Alllocationswithinthisareaare

readandwriteaccessibleunderprogramcontrol.

TheoverallDataMemoryissubdividedintotwobanks.TheSpecialPurposeDataMemoryregistersare

accessibleinallbanks,withtheexceptionoftheEECregisterataddress40H,whichisonlyaccessiblein

Bank1.SwitchingbetweenthedifferentDataMemorybanksisachievedbysettingtheBankPointerto

thecorrectvalue.ThestartaddressoftheDataMemoryforthedeviceistheaddress00H.

00H

7FH

80H

FFH

Special Purpose

Data Memory

General Purpose

Data Memory

128 Bytes

Data Memory Structure

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 147 148

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