SN8P1602B datasheet(5/76 Pages) SONIX

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SN8P1602B

8-Bit Micro-Controller

SONiX TECHNOLOGY CO., LTD

Page 5

Version 1.1

OSCILLATORS ............................................................................................................................. 38

OVERVIEW................................................................................................................................................. 38

CLOCK BLOCK DIAGRAM .................................................................................................................... 38

OSCM REGISTER DESCRIPTION.......................................................................................................... 39

EXTERNAL HIGH-SPEED OSCILLATOR .............................................................................................. 40

OSCILLATOR MODE CODE OPTION ................................................................................................... 40

OSCILLATOR DEVIDE BY 2 CODE OPTION ....................................................................................... 40

OSCILLATOR SAFE GUARD CODE OPTION....................................................................................... 40

SYSTEM OSCILLATOR CIRCUITS ......................................................................................................... 41

External RC Oscillator Frequency Measurement ....................................................................................42

INTERNAL LOW-SPEED OSCILLATOR ................................................................................................ 43

SYSTEM MODE DESCRIPTION............................................................................................................... 44

OVERVIEW .............................................................................................................................................. 44

NORMAL MODE...................................................................................................................................... 44

SLOW MODE ........................................................................................................................................... 44

GREEN MODE......................................................................................................................................... 44

POWER DOWN MODE ........................................................................................................................... 44

SYSTEM MODE CONTROL...................................................................................................................... 45

SYSTEM MODE SWITCHING ................................................................................................................. 46

WAKEUP TIME .......................................................................................................................................... 47

OVERVIEW .............................................................................................................................................. 47

HARDWARE WAKEUP............................................................................................................................ 47

EXTERNAL WAKEUP TRIGGER CONTROL ......................................................................................... 48

TIMERS .......................................................................................................................................... 49

WATCHDOG TIMER (WDT)..................................................................................................................... 49

TIMER0 (TC0) ............................................................................................................................................. 50

OVERVIEW .............................................................................................................................................. 50

TC0M MODE REGISTER ........................................................................................................................ 51

TC0C COUNTING REGISTER ................................................................................................................ 52

TC0 TIMER OPERATION SEQUENCE .................................................................................................. 53

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