HT48R006 データシートの表示（PDF） - Holtek Semiconductor

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HT48R006

Small Package 8-Bit OTP MCU

Holtek Semiconductor 

HT48R006/HT46R006

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

Wake-up Function Register - PAWK ....................................................................20

Pull-high Registers - PAPU ..................................................................................20

Oscillator............................................................................................22

System Oscillator Overview.............................................................................................................22

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

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

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

Internal RC Oscillator - HIRC ...............................................................................23

External 32768Hz Crystal Oscillator - LXT ...........................................................23

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

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

Operating Modes ...............................................................................24

Mode Types and Selection ...................................................................................24

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

Standby Current Considerations...........................................................................25

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

Watchdog Timer ................................................................................26

Watchdog Timer Operation...................................................................................26

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

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

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

HT46R006............................................................................................................29

HT48R006............................................................................................................30

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

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

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

I/O Port Control Registers.....................................................................................32

Pin-shared Functions............................................................................................32

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

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

Timer/Event Counters .......................................................................34

Configuring the Timer/Event Counter Input Clock Source .....................................34

Timer Registers - TMR0, TMR1 ...........................................................................34

Timer Control Registers - TMR0C, TMR1C..........................................................38

Timer Mode ..........................................................................................................38

Event Counter Mode.............................................................................................38

Pulse Width Capture Mode...................................................................................39

Prescaler ..............................................................................................................40

Buzzer Function -- HT48R006 ..............................................................................40

PFD Function -- HT46R006 ..................................................................................41

I/O Interfacing.......................................................................................................41

Rev. 1.00

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October 24, 2011

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