HT45F5R datasheet(26/138 Pages) HOLTEK

26 / 138 page

Rev. 1.10

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HT45F5R

Charger ASSP Flash MCU

HT45F5R

Charger ASSP Flash MCU

On-Chip Debug Support – OCDS

ThereisanEVchipnamedHT45V5RwhichisusedtoemulatetheHT45F5Rdevice.ThisEVchip

devicealsoprovidesan"On-ChipDebug"functiontodebugthedeviceduringthedevelopment

process.TheEVchipandtheactualMCUdevicearealmostfunctionallycompatibleexceptfor

the"On-ChipDebug"function.UserscanusetheEVchipdevicetoemulatetherealchipdevice

behaviorbyconnectingtheOCDSDAandOCDSCKpinstotheHoltekHT-IDEdevelopmenttools.

TheOCDSDApinistheOCDSData/Addressinput/outputpinwhiletheOCDSCKpinistheOCDS

clockinputpin.WhenusersusetheEVchipfordebugging,otherfunctionswhicharesharedwith

theOCDSDAandOCDSCKpinsintheactualMCUdevicewillhavenoeffectintheEVchip.

However,thetwoOCDSpinswhicharepin-sharedwiththeICPprogrammingpinsarestillusedas

theFlashMemoryprogrammingpinsforICP.ForamoredetailedOCDSdescription,refertothe

correspondingdocumentnamed"Holteke-Linkfor8-bitMCUOCDSUser’sGuide".

Holtek e-Link Pins

EV Chip Pins

Pin Description

OCDSDA

On-�hip De�ug Suppo�t Data/Add�ess input/output

OCDSCK

On-�hip De�ug Suppo�t Clo�k input

VDD

Powe� Supply

GND

VSS

G�ound

HT45F5R Datasheet(PDF) 26 Page - Holtek Semiconductor Inc