SN8P2613 datasheet(4/102 Pages) SONIX

4 / 102 page

SN8P2610 Series

8-Bit Micro-Controller

SONiX TECHNOLOGY CO., LTD

Page 4

Version 1.3

3.1

OVERVIEW..................................................................................................................................... 37

3.2

POWER ON RESET......................................................................................................................... 38

3.3

WATCHDOG RESET...................................................................................................................... 38

3.4

BROWN OUT RESET ..................................................................................................................... 39

3.4.1

BROWN OUT DESCRIPTION ................................................................................................. 39

3.4.2

THE SYSTEM OPERATING VOLTAGE DECSRIPTION........................................................ 40

3.4.3

BROWN OUT RESET IMPROVEMENT.................................................................................. 40

3.5

EXTERNAL RESET ........................................................................................................................ 43

3.6

EXTERNAL RESET CIRCUIT ....................................................................................................... 43

3.6.1

Simply RC Reset Circuit ........................................................................................................... 43

3.6.2

Diode & RC Reset Circuit ........................................................................................................44

3.6.3

Zener Diode Reset Circuit ........................................................................................................ 44

3.6.4

Voltage Bias Reset Circuit........................................................................................................ 45

3.6.5

External Reset IC...................................................................................................................... 46

SYSTEM CLOCK .................................................................................................................................. 47

4.1

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

4.2

CLOCK BLOCK DIAGRAM .......................................................................................................... 47

4.3

OSCM REGISTER ........................................................................................................................... 48

4.4

SYSTEM HIGH CLOCK ................................................................................................................. 49

4.4.1

INTERNAL HIGH RC............................................................................................................... 49

4.4.2

EXTERNAL HIGH CLOCK...................................................................................................... 49

4.4.2.1

CRYSTAL/CERAMIC......................................................................................................... 50

4.4.2.2

RC......................................................................................................................................... 50

4.4.2.3

EXTERNAL CLOCK SIGNAL........................................................................................... 51

4.5

SYSTEM LOW CLOCK .................................................................................................................. 52

4.5.1

SYSTEM CLOCK MEASUREMENT ........................................................................................ 53

SYSTEM OPERATION MODE ...........................................................................................................54

5.1

OVERVIEW..................................................................................................................................... 54

5.2

SYSTEM MODE SWITCHING EXAMPLE ................................................................................... 55

5.3

WAKEUP ......................................................................................................................................... 57

5.3.1

OVERVIEW .............................................................................................................................. 57

5.3.2

WAKEUP TIME........................................................................................................................ 57

5.3.3

P1W WAKEUP CONTROL REGISTER ................................................................................... 57

INTERRUPT........................................................................................................................................... 58

6.1

OVERVIEW..................................................................................................................................... 58

6.2

INTEN INTERRUPT ENABLE REGISTER ................................................................................... 58

6.3

INTRQ INTERRUPT REQUEST REGISTER ................................................................................ 59

6.4

GIE GLOBAL INTERRUPT OPERATION .................................................................................... 59

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