HT45F2020 datasheet(52/85 Pages) HOLTEK

52 / 85 page

Rev. 1.00

April 11, 2017

Rev. 1.00

April 11, 2017

HT45F2020/HT45F2022

Sound Effect Generator Flash MCU

HT45F2020/HT45F2022

Sound Effect Generator Flash MCU

Counter Value

0x3FF

CCRP

CCRA

PTON

PTPAU

PTPOL

CCRP Int.

Flag PTMPF

CCRA Int.

Flag PTMAF

PTM O/P

Time

CCRA=0

CCRA = 0

Counter overflow

CCRA > 0 Counter cleared by CCRA value

Pause

Resume

Stop

Counter Restart

PTCCLR = 1; PTM [1:0] = 00

Output pin set to

initial Level Low

if PTOC=0

Output Toggle

with PTMAF flag

Note PTIO [1:0] = 10

Active High Output select

Here PTIO [1:0] = 11

Toggle Output select

Output not affected by

PTMAF flag. Remains High

until reset by PTON bit

Output Pin

Reset to Initial value

Output controlled by

other pin-shared function

Output Inverts

when PTPOL is high

PTMPF not

generated

No PTMAF flag

generated on

CCRA overflow

Output does

not change

Compare Match Output Mode – PTCCLR=1

Note:1.WithPTCCLR=1,aComparatorAmatchwillclearthecounter

2.ThePTMoutputpiniscontrolledonlybythePTMAFflag

3.TheoutputpinisresettoitsinitialstatebyaPTONbitrisingedge

4.APTMPFflagisnotgeneratedwhenPTCCLR=1

HT45F2020 数据表(PDF) 52 Page - Holtek Semiconductor Inc

HT45F2020 数据表(HTML) 52 Page - Holtek Semiconductor Inc

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