HT82R732 datasheet(3/74 Pages) HOLTEK

3 / 74 page

Operating Modes ...............................................................................23

Mode Types and Selection ...................................................................................23

Mode Switching ....................................................................................................23

Standby Current Considerations...........................................................................24

Wake-up...............................................................................................................24

Watchdog Timer ................................................................................25

Watchdog Timer Operation...................................................................................25

Low Voltage Detector

- LVD.............................................................26

LVD Register ........................................................................................................26

LVD Operation......................................................................................................27

Reset and Initialisation .....................................................................28

Reset Functions ...................................................................................................28

Reset Initial Conditions .........................................................................................30

Input/Output Ports.............................................................................32

Pull-high Resistors................................................................................................32

Port Wake-up .......................................................................................................32

I/O Port Control Registers.....................................................................................33

Pin-shared Functions............................................................................................33

I/O Pin Structures .................................................................................................34

Programming Considerations ...............................................................................34

Timer/Event Counters .......................................................................35

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

Timer Registers

- TMR0, TMR1 ...........................................................................35

Timer Control Registers

- TMR0C, TMR1C..........................................................37

Timer Mode ..........................................................................................................38

Event Counter Mode.............................................................................................39

Pulse Width Capture Mode...................................................................................39

Prescaler ..............................................................................................................40

PFD Function .......................................................................................................40

I/O Interfacing.......................................................................................................41

Programming Considerations ...............................................................................41

Timer Program Example.......................................................................................42

Interrupts............................................................................................43

Interrupt Registers ................................................................................................43

Interrupt Operation ...............................................................................................44

Interrupt Priority.....................................................................................................46

External Interrupt ..................................................................................................46

Timer/Event Counter Interrupt ..............................................................................46

Time Base Interrupts ............................................................................................47

Programming Considerations ...............................................................................48

HT82R732

e-Banking 8-Bit OTP MCU

Rev. 1.00

October 31, 2013

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