HT46R003B datasheet(3/76 Pages) HOLTEK

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Rev. 1.00

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Rev. 1.00

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HT46R003B

Cost-Effective A/D 8-bit OTP MCU

HT46R003B

Cost-Effective A/D 8-bit OTP MCU

Power Down Mode and Wake-up.................................................................. 22

Power Down Mode................................................................................................................ ��

Standby C�rrent Considerations........................................................................................... ��

Wake-�p................................................................................................................................ ��

Watchdog Timer............................................................................................. 24

Watchdog Timer Clock So�rce.............................................................................................. ��

Watchdog Timer Control Registers ....................................................................................... ��

Watchdog Timer Operation ................................................................................................... �5

Reset and Initialization.................................................................................. 26

Reset F�nctions .................................................................................................................... �6

Reset Initial Conditions ......................................................................................................... �8

Input/Output Ports......................................................................................... 30

Port A Wake-�p ..................................................................................................................... 31

I/O Port Control Registers..................................................................................................... 31

Pin-shared F�nctions ............................................................................................................ 3�

I/O Pin Str�ct�res.................................................................................................................. 33

Programming Considerations................................................................................................ 3�

Timer/Event Counter ..................................................................................... 35

Configuring the Timer/Event Counter Input Clock Source .................................................... 35

Timer Register – TMR........................................................................................................... 36

Timer Control Register – TMRC............................................................................................ 36

Timer Mode ........................................................................................................................... 37

Event Co�nter Mode ............................................................................................................. 38

P�lse Width Capt�re Mode ................................................................................................... 38

Prescaler............................................................................................................................... 3�

PFD F�nction ........................................................................................................................ �0

I/O Interfacing........................................................................................................................ �0

Programming Considerations................................................................................................ �0

Timer Program Example ....................................................................................................... �1

Time Base ............................................................................................................................. ��

Pulse Width Modulator.................................................................................. 42

PWM Operation..................................................................................................................... ��

6+� PWM Mode .................................................................................................................... ��

7+1 PWM Mode .................................................................................................................... �3

PWM O�tp�t Control............................................................................................................. ��

Analog to Digital Converter ......................................................................... 45

A/D Overview ........................................................................................................................ �5

A/D Converter Data Registers – ADRL� ADRH ..................................................................... �5

A/D Converter Control Registers – ADCR� ACSR� ADPCR .................................................. �6

A/D Operation ....................................................................................................................... �8

A/D Inp�t Pins ....................................................................................................................... ��

S�mmary of A/D Conversion Steps....................................................................................... ��

HT46R003B Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

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