HT45F3W datasheet(79/167 Pages) HOLTEK

79 / 167 page

Rev. 1.50

De�e��e� 01� �01�

Rev. 1.50

De�e��e� 01� �01�

HT45F3W

R-Type Blood Pressure Meter Flash MCU

HT45F3W

R-Type Blood Pressure Meter Flash MCU

Compact Type TM – CTM

AlthoughthesimplestformofthetwoTMtypes,theCompactTMtypestillcontainsthreeoperating

modes,whichareCompareMatchOutput,Timer/EventCounterandPWMOutputmodes.The

CompactTMcanalsobecontrolledwithanexternalinputpinandcandrivetwoexternaloutput

pins.Thesetwoexternaloutputpinscanbethesamesignalortheinversesignal.

Name

TM No.

TM Input Pin

TM Output Pin

10-�it CTM

0� 1

TCK0� TCK1

TP0_0� TP0_1

TP1_0� TP1_1

Compact TM Operation

Atitscoreisa10-bitcount-upcounterwhichisdrivenbyauserselectableinternalorexternalclock

source.Therearealsotwointernalcomparatorswiththenames,ComparatorAandComparator

P.ThesecomparatorswillcomparethevalueinthecounterwithCCRPandCCRAregisters.The

CCRPisthreebitswidewhosevalueiscomparedwiththehighestthreebitsinthecounterwhilethe

CCRAisthetenbitsandthereforecompareswithallcounterbits.

Theonlywayofchangingthevalueofthe10-bitcounterusingtheapplicationprogram,isto

clearthecounterbychangingtheTnONbitfromlowtohigh.Thecounterwillalsobecleared

automaticallybyacounteroverfloworacomparematchwithoneofitsassociatedcomparators.

Whentheseconditionsoccur,aTMinterruptsignalwillalsousuallybegenerated.TheCompact

TypeTMcanoperateinanumberofdifferentoperationalmodes,canbedrivenbydifferentclock

sourcesincludinganinputpinandcanalsocontrolanoutputpin.Alloperatingsetupconditionsare

selectedusingrelevantinternalregisters.

CCRP

CCRA

Tn CC LR

Co mp ar at or P M at ch

Co mp ar at or A Ma tc h

Tn CK 2~ Tn CK 0

Tn ON

Tn PAU

b7 ~b 9

3 -b it C om par at or P

TC Kn

10 - bi t Co m par at or A

Co unt er C le ar

10 -b it C ount -u p Co unt er

Tn PF I nt e rru pt

Tn AF I nt e rru pt

TP n Pi n

Ou tp u t

b0 ~b 9

Tn M1 , Tn M0

Tn IO 1, T nI O0

Tn PO L

Tn OC

Po la ri ty

Co nt ro l

Ou tp u t

Co nt ro l

TP n_0

TP n_1

11 1

00 0

00 1

01 0

01 1

10 0

10 1

11 0

f SYS /4

f SYS

f H /1 6

f H /6 4

f TB C

Re se rv ed

Compact Type TM Block Digram (n=0 or 1)

HT45F3W 数据表(PDF) 79 Page - Holtek Semiconductor Inc

HT45F3W 数据表(HTML) 79 Page - Holtek Semiconductor Inc

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