HT48R064B 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT48R064B

Enhanced I/O Type 8-Bit OTP MCU

Holtek Semiconductor 

HT48R063B/064B/065B/066B

Data Memory......................................................................................21

Structure...............................................................................................................21

Special Purpose Data Memory .............................................................................22

Special Function Registers ...................................................................................22

Indirect Addressing Registers - IAR0, IAR1 .........................................................22

Memory Pointers - MP0, MP1..............................................................................22

Accumulator - ACC ..............................................................................................24

Program Counter Low Register - PCL..................................................................24

Status Register - STATUS ...................................................................................24

Input/Output Ports and Control Registers .............................................................25

System Control Registers - CTRL0, CTRL1, CTRL2............................................25

Wake-up Function Register - PAWK ....................................................................27

Pull-high Registers - PAPU, PBPU, PCPU, PDPU, PEPU, PFPU ........................27

Software COM Register - SCOMC.......................................................................27

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

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

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

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

External RC Oscillator - ERC ...............................................................................27

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

External 32768Hz Crystal Oscillator - LXT ...........................................................28

LXT Oscillator Low Power Function ......................................................................28

Internal Low Speed Oscillator - LIRC ...................................................................29

Operating Modes ...............................................................................29

Mode Types and Selection ...................................................................................29

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

Standby Current Considerations...........................................................................30

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

Watchdog Timer ................................................................................30

Watchdog Timer Operation...................................................................................30

Reset and Initialisation .....................................................................32

Reset Functions ...................................................................................................32

Reset Initial Conditions .........................................................................................33

Input/Output Ports.............................................................................35

Pull-high Resistors................................................................................................35

Port A Wake-up ....................................................................................................35

I/O Port Control Registers.....................................................................................37

Pin-shared Functions............................................................................................37

I/O Pin Structures .................................................................................................37

Programming Considerations ...............................................................................37

Rev. 1.10

3

October 23, 2012

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