HT48R064G Ver la hoja de datos (PDF) - Holtek Semiconductor

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HT48R064G

Enhanced I/O Type MCU with OPA

Holtek Semiconductor 

Contents

Program Memory...............................................................................26

Structure...............................................................................................................26

Special Vectors.....................................................................................................26

Look-up Table.......................................................................................................27

Table Program Example .......................................................................................28

Data Memory......................................................................................29

Structure...............................................................................................................29

Special Purpose Data Memory.........................................................30

Special Function Registers ...................................................................................31

Wake-up Function Register - PAWK, PCWK........................................................37

Pull-high Registers - PAPU, PBPU, PCPU, PDPU, PEPU, PFPU ........................37

Software COM Register - SCOMC.......................................................................37

Oscillator............................................................................................37

System Oscillator Overview..................................................................................37

System Clock Configurations................................................................................37

External Crystal/Resonator Oscillator - HXT ........................................................38

External RC Oscillator - ERC ...............................................................................38

Internal RC Oscillator - HIRC ...............................................................................39

External 32768Hz Crystal Oscillator - LXT ...........................................................39

LXT Oscillator Low Power Function ......................................................................40

Internal Low Speed Oscillator - LIRC ...................................................................40

Operating Modes ...............................................................................41

Mode Types and Selection ...................................................................................41

Mode Switching ....................................................................................................42

Standby Current Considerations...........................................................................43

Wake-up ...............................................................................................................43

Watchdog Timer ................................................................................44

Watchdog Timer Operation...................................................................................44

Reset and Initialisation .....................................................................46

Reset Functions ...................................................................................................46

Reset Initial Conditions .........................................................................................48

Input/Output Ports.............................................................................51

Pull-high Resistors................................................................................................51

I/O Port Wake-up..................................................................................................51

I/O Port Control Registers.....................................................................................53

Pin-shared Functions............................................................................................54

Pin Remapping Configuration - HT48R0662G .....................................................54

I/O Pin Structures .................................................................................................55

Programming Considerations ...............................................................................55

Rev. 1.10

3

October 23, 2012

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