HT66F019 datasheet(80/175 Pages) HOLTEK

80 / 175 page

Rev. 1.00

De�e��e� 01� �01�

Rev. 1.00

De�e��e� 01� �01�

HT66F019

A/D Flash MCU with EEPROM

HT66F019

A/D Flash MCU with EEPROM

IftheCCRAbitsareallzero,thecounterwilloverflowwhenitsreachesitsmaximum16-bit,FFFF

Hex,value,howeverheretheSTMAFinterruptrequestflagwillnotbegenerated.

Asthenameofthemodesuggests,afteracomparisonismade,theSTMoutputpin,willchange

state.TheSTMoutputpinconditionhoweveronlychangesstatewhenaSTMAFinterruptrequest

flagisgeneratedafteracomparematchoccursfromComparatorA.TheSTMPFinterruptrequest

flag,generatedfromacomparematchoccursfromComparatorP,willhavenoeffectontheSTM

outputpin.ThewayinwhichtheSTMoutputpinchangesstatearedeterminedbytheconditionof

theSTIO1andSTIO0bitsintheSTMC1register.TheSTMoutputpincanbeselectedusingthe

STIO1andSTIO0bitstogohigh,togolowortotogglefromitspresentconditionwhenacompare

matchoccursfromComparatorA.TheinitialconditionoftheSTMoutputpin,whichissetupafter

theSTONbitchangesfromlowtohigh,issetupusingtheSTOCbit.NotethatiftheSTIO1and

STIO0bitsarezerothennopinchangewilltakeplace.

Counte� Value

0xFFFF

CCRP

CCRA

STON

STPAU

STPOL

CCRP Int. flag

STMPF

CCRA Int. flag

STMAF

STM O/P Pin

Ti�e

CCRP=0

CCRP > 0

Counte� ove�flow

CCRP > 0

Counte� �lea�ed �y CCRP value

Pause

Resu�e

Stop

Counte�

Resta�t

STCCLR = 0; STM [1:0] = 00

Output pin set

to initial Level

Low if STOC=0

Output Toggle

with STMAF flag

Note STIO [1:0] = 10

A�tive High Output sele�t

He�e STIO [1:0] = 11

Toggle Output sele�t

Output not affe�ted �y

STMAF flag. Re�ains High

until �eset �y STON �it

Output Pin

Reset to Initial value

Output �ont�olled �y

othe� pin-sha�ed fun�tion

Output Inve�ts

when STPOL is high

Compare Match Output Mode – STCCLR = 0

Notes:1.WithSTCCLR=0,aComparatorPmatchwillclearthecounter

2.TheSTMoutputpiniscontrolledonlybytheSTMAFflag

3.TheoutputpinisresettoitsinitialstatebyaSTONbitrisingedge

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