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HT46R002 датащи(PDF) 49 Page - Holtek Semiconductor Inc

номер детали HT46R002
подробное описание детали  Cost-Effective A/D 8-Bit OTP MCU
Download  83 Pages
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производитель  HOLTEK [Holtek Semiconductor Inc]
домашняя страница  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT46R002 датащи(HTML) 49 Page - Holtek Semiconductor Inc

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Rev. 1.21
48
April 11, 2017
Rev. 1.21
49
April 11, 2017
HT46R002/HT46R003
Cost-Effective A/D 8-Bit OTP MCU
HT46R002/HT46R003
Cost-Effective A/D 8-Bit OTP MCU
f SY S /2
PW M
[P WM ] =1 00
[P WM ] =1 01
PW M
[P WM ] =1 02
PW M
[P WM ] =1 03
PW M
PW M m odul at i on per i od : 128 /f SY S
50/ 12 8
51/ 12 8
51/ 12 8
52/ 12 8
50/ 12 8
50/ 12 8
51/ 12 8
51/ 12 8
50/ 12 8
51/ 12 8
51/ 12 8
52/ 12 8
M odul at i on cycl e 0
PW M cycl e : 256/ f SY S
M odul at i on cycl e 1
M odul at i on cycl e 0
7+1 Mode
PW M Re gi st er
( 6+ 2) M od e
b7
b0
AC va lu e
DC va lu e
PWM Register for 7+1 Mode
PWM Output Control
ThePWMoutputsarepin-sharedwiththeI/OpinPA0.TooperateasaPWMoutputandnotas
anI/Opin,thecorrectbitsmustbesetintheCTRL0register.Azerovaluemustalsobewrittento
thecorrespondingbitintheI/OportcontrolregisterPAC.0toensurethatthecorrespondingPWM
outputpinissetasanoutput.Afterthesetwoinitialstepshavebeencarriedout,andofcourse
aftertherequiredPWMvaluehasbeenwrittenintothePWMregister,writingahighvalueto
thecorrespondingbitintheoutputdataregisterPA.0willenablethePWMdatatoappearonthe
pin.WritingazerovaluewilldisablethePWMoutputfunctionandforcetheoutputlow.Inthis
way,thePortdataoutputregisterscanbeusedasanon/offcontrolforthePWMfunction.Note
thatiftheCTRL0registerhasselectedthePWMfunction,butahighvaluehasbeenwrittentoits
correspondingbitinthePACcontrolregistertoconfigurethepinasaninput,thenthepincanstill
functionasanormalinputline,withpull-highresistoroptions.
PWM Programming Example
mov a,64h
; set PWM value of decimal 100
mov pwm0,a
set ctrl0.5
; select the 7+1 PWM mode
set ctrl0.3
; select pin PA0 to have a PWM function
clr pac.0
; set pin PA0 as an output
set pa.0
; enable the PWM output
:
:
clr pa.0
; disable the PWM output_ pin PA0 forced low


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