HT46R066B 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT46R066B

Enhanced A/D Type 8-Bit OTP MCU

Holtek Semiconductor 

Contents

Data Memory......................................................................................22

Structure...............................................................................................................22

Special Purpose Data Memory .............................................................................23

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

Indirect Addressing Registers - IAR0, IAR1 .........................................................23

Memory Pointers - MP0, MP1..............................................................................23

Accumulator - ACC ..............................................................................................25

Program Counter Low Register - PCL..................................................................25

Status Register - STATUS ...................................................................................25

Input/Output Ports and Control Registers .............................................................26

System Control Registers - CTRL0, CTRL1.........................................................27

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

Pull-high Registers - PAPU, PBPU, PCPU, PDPU ...............................................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 ...............................................................................29

Internal RC Oscillator - HIRC ...............................................................................29

External 32768Hz Crystal Oscillator - LXT ...........................................................29

LXT Oscillator Low Power Function ......................................................................30

Internal Low Speed Oscillator - LIRC ...................................................................30

Operating Modes ...............................................................................30

Mode Types and Selection ...................................................................................30

Mode Switching ....................................................................................................31

Standby Current Considerations...........................................................................31

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

Watchdog Timer ................................................................................32

Watchdog Timer Operation...................................................................................32

Reset and Initialisation .....................................................................34

Reset Functions ...................................................................................................34

Reset Initial Conditions .........................................................................................35

Input/Output Ports.............................................................................38

Pull-high Resistors................................................................................................38

Port A Wake-up ....................................................................................................38

I/O Port Control Registers.....................................................................................40

Pin-shared Functions............................................................................................40

Pin Remapping Configuration - HT46R066B .......................................................40

I/O Pin Structures .................................................................................................41

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

Rev. 1.10

3

October 23, 2012

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