HT46R065G Ver la hoja de datos (PDF) - Holtek Semiconductor

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HT46R065G

Enhanced A/D Type 8-Bit OTP MCU with OPA

Holtek Semiconductor 

Contents

Special Purpose Data Memory.........................................................22

Special Function Registers ...................................................................................23

Wake-up Function Register - PAWK, PCWK........................................................28

Pull-high Registers - PAPU, PBPU, PCPU, PDPU, PEPU, PFPU ........................28

Software COM Register - SCOMC.......................................................................28

Oscillator............................................................................................28

System Oscillator Overview..................................................................................28

System Clock Configurations................................................................................29

External Crystal/Resonator Oscillator - HXT ........................................................29

External RC Oscillator - ERC ...............................................................................30

Internal RC Oscillator - HIRC ...............................................................................30

External 32768Hz Crystal Oscillator - LXT ...........................................................31

LXT Oscillator Low Power Function ......................................................................31

Internal Low Speed Oscillator - LIRC ...................................................................32

Operating Modes ...............................................................................32

Mode Types and Selection ...................................................................................32

Mode Switching ....................................................................................................34

Standby Current Considerations...........................................................................34

Wake-up ...............................................................................................................35

Watchdog Timer ................................................................................36

Watchdog Timer Operation...................................................................................36

Reset and Initialisation .....................................................................38

Reset Functions ...................................................................................................38

Reset Initial Conditions .........................................................................................41

Input/Output Ports.............................................................................44

Pull-high Resistors................................................................................................44

I/O Port Wake-up..................................................................................................44

I/O Port Control Registers.....................................................................................46

Pin-shared Functions............................................................................................46

Pin Remapping Configuration - HT46R0662G .....................................................49

I/O Pin Structures .................................................................................................49

Programming Considerations ...............................................................................49

Timer/Event Counters .......................................................................50

Configuring the Timer/Event Counter Input Clock Source .....................................50

Timer Registers - TMR0, TMR1 ...........................................................................50

Timer Control Registers - TMR0C, TMR1C..........................................................52

Timer Mode ..........................................................................................................53

Event Counter Mode.............................................................................................54

Pulse Width Capture Mode...................................................................................54

Prescaler ..............................................................................................................55

PFD Function .......................................................................................................55

Rev. 1.00

iii

March 3, 2011

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