HT46R066D Ver la hoja de datos (PDF) - Holtek Semiconductor

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HT46R066D

Enhanced A/D Type MCU with High Current LED Driver

Holtek Semiconductor 

Contents

Special Purpose Data Memory.........................................................20

Special Function Registers ...................................................................................20

Indirect Addressing Registers - IAR0, IAR1 .........................................................20

Memory Pointers - MP0, MP1..............................................................................20

Accumulator - ACC ..............................................................................................22

Program Counter Low Register - PCL..................................................................22

Status Register - STATUS ...................................................................................22

Input/Output Ports and Control Registers .............................................................23

System Control Registers - CTRL0, CTRL1.........................................................24

REMAP Register ..................................................................................................25

Wake-up Function Register - PAWK ....................................................................26

Pull-high Registers - PAPU, PBPU, PCPU, PDPU ...............................................26

Software COM Register - SCOMC.......................................................................26

Oscillator............................................................................................27

System Oscillator Overview..................................................................................27

System Clock Configurations................................................................................27

External Crystal/Resonator Oscillator - HXT ........................................................27

External RC Oscillator - ERC ...............................................................................28

Internal RC Oscillator - HIRC ...............................................................................28

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

LXT Oscillator Low Power Function ......................................................................29

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 ................................................................................33

Watchdog Timer Operation...................................................................................33

Reset and Initialisation .....................................................................35

Reset Functions ...................................................................................................35

Reset Initial Conditions .........................................................................................37

Input/Output Ports.............................................................................40

Pull-high Resistors................................................................................................40

Port A Wake-up ....................................................................................................40

I/O Port Control Registers.....................................................................................42

Pin-shared Functions............................................................................................42

I/O Pin Structures .................................................................................................43

Programming Considerations ...............................................................................43

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