HT45F39 datasheet(56/102 Pages) HOLTEK

56 / 102 page

Rev. 1.10

July 01, 2016

Rev. 1.10

July 01, 2016

HT45F39/HT45F391

Ultrasonic Distance Measurement 8-bit Flash MCU

HT45F39/HT45F391

Ultrasonic Distance Measurement 8-bit Flash MCU

CCRP

CCRA

Counter Value

Counter Cleared

by CCRP

CCRA Int.

Flag TnAF

CCRP Int.

Flag TnPF

PWM Output

TM Pin

TnOC = 1

TnON bit

PWM Duty Cycle

set by CCRA

PWM Period

set by CCRP

TnIO1, TnIO0 = 10 PWM Output

TnIO1, TnIO0 = 00

Output Inactive

TnIO1, TnIO0 = 10

Interrupts

still generated

Here TnIO1, TnIO0 = 00

Output Forced to Inactive

level but PWM function

keeps running internally

TnIO1, TnIO0 = 10

Resume PWM Output

Counter Stop

if TnON bit low

Counter reset

when TnON

returns high

PWM resumes

operation

Time

TnPOL bit

Output Inverts

When TnPOL = 1

TM Pin

TnOC = 0

TnPAU bit

Resume

Pause

TnDPX = 0; TnM1, TnM0 = 10

Output controlled by

other pin-shared function

PWM Mode – TnDPX = 0

Note:1.HereTnDPX=0–CounterclearedbyCCRP

2.AcounterclearsetsthePWMPeriod

3.TheinternalPWMfunctioncontinuesevenwhenTnIO[1:0]=00or01

4.TheTnCCLRbithasnoinfluenceonPWMoperation

HT45F39 Datasheet(PDF) 56 Page - Holtek Semiconductor Inc

HT45F39 Datasheet(HTML) 56 Page - Holtek Semiconductor Inc

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