HT46R065B Просмотр технического описания (PDF) - Holtek Semiconductor

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HT46R065B

Enhanced A/D Type 8-Bit OTP MCU

Holtek Semiconductor 

Contents

Special Function Registers ..............................................................16

Indirect Addressing Registers - IAR0, IAR1 .........................................................16

Memory Pointers - MP0, MP1..............................................................................16

Accumulator - ACC ..............................................................................................18

Program Counter Low Register - PCL..................................................................18

Status Register - STATUS ...................................................................................18

Input/Output Ports and Control Registers .............................................................19

System Control Registers - CTRL0, CTRL1.........................................................20

Wake-up Function Register - PAWK ....................................................................21

Pull-high Registers - PAPU, PBPU, PCPU, PDPU ...............................................21

Software COM Register - SCOMC.......................................................................21

Oscillator............................................................................................21

System Oscillator Overview..................................................................................21

System Clock Configurations................................................................................22

External Crystal/Resonator Oscillator - HXT ........................................................22

External RC Oscillator - ERC ...............................................................................22

Internal RC Oscillator - HIRC ...............................................................................22

External 32768Hz Crystal Oscillator - LXT ...........................................................22

LXT Oscillator Low Power Function ......................................................................23

Internal Low Speed Oscillator - LIRC ...................................................................23

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

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

Mode Switching ....................................................................................................24

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

Wake-up ...............................................................................................................25

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

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

Reset and Initialisation .....................................................................27

Reset Functions ...................................................................................................27

Reset Initial Conditions .........................................................................................28

Input/Output Ports.............................................................................31

Pull-high Resistors................................................................................................31

Port A Wake-up ....................................................................................................31

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

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

Pin Remapping Configuration - HT46R066B .......................................................33

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

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

Rev. 1.00

3

April 8, 2011

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