HT48R064D 查看數據表（PDF） - Holtek Semiconductor

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HT48R064D

Enhanced I/O Type MCU with High Current LED Driver

Holtek Semiconductor 

Contents

Status Register - STATUS ...................................................................................20

Input/Output Ports and Control Registers .............................................................21

System Control Registers - CTRL0, CTRL1.........................................................22

REMAP Register ..................................................................................................23

Wake-up Function Register - PAWK ....................................................................24

Pull-high Registers - PAPU, PBPU, PCPU, PDPU ...............................................24

Software COM Register - SCOMC.......................................................................24

Oscillator............................................................................................25

System Oscillator Overview..................................................................................25

System Clock Configurations................................................................................25

External Crystal/Resonator Oscillator - HXT ........................................................25

External RC Oscillator - ERC ...............................................................................26

Internal RC Oscillator - HIRC ...............................................................................26

External 32768Hz Crystal Oscillator - LXT ...........................................................27

LXT Oscillator Low Power Function ......................................................................27

Internal Low Speed Oscillator - LIRC ...................................................................28

Operating Modes ...............................................................................28

Mode Types and Selection ...................................................................................28

Mode Switching ....................................................................................................29

Standby Current Considerations...........................................................................29

Wake-up ...............................................................................................................30

Watchdog Timer ................................................................................31

Watchdog Timer Operation...................................................................................31

Reset and Initialisation .....................................................................33

Reset Functions ...................................................................................................33

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

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

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

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