SN8P2740 datasheet(4/136 Pages) SONIX

4 / 136 page

SN8P2740 Series

ADC, OP-amp, Comparator 8-Bit Micro-Controller

SONiX TECHNOLOGY CO., LTD

Page 4

Version 2.0

4.3.3

EXTERNAL HIGH-SPEED OSCILLATOR ........................................................................................................ 45

4.3.4

EXTERNAL OSCILLATOR APPLICATION CIRCUIT ..................................................................................... 45

4.4

SYSTEM LOW-SPEED CLOCK.................................................................................................................................... 46

4.5

OSCM REGISTER .......................................................................................................................................................... 47

4.6

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

4.7

SYSTEM CLOCK TIMING ............................................................................................................................................ 48

SYSTEM OPERATION MODE............................................................................................................................................ 51

5.1

OVERVIEW .................................................................................................................................................................... 51

5.2

NORMAL MODE ........................................................................................................................................................... 52

5.3

SLOW MODE ................................................................................................................................................................. 52

5.4

POWER DOWN MODE ................................................................................................................................................. 52

5.5

GREEN MODE ............................................................................................................................................................... 53

5.6

OPERATING MODE CONTROL MACRO ................................................................................................................... 54

5.7

WAKEUP ........................................................................................................................................................................ 55

5.7.1

OVERVIEW .......................................................................................................................................................... 55

5.7.2

WAKEUP TIME.................................................................................................................................................... 55

5.7.3

P1W WAKEUP CONTROL REGISTER .............................................................................................................. 56

INTERRUPT ........................................................................................................................................................................... 57

6.1

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

6.2

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

6.3

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

6.4

GIE GLOBAL INTERRUPT OPERATION.................................................................................................................... 60

6.5

PUSH, POP ROUTINE.................................................................................................................................................... 61

6.6

EXTERNAL INTERRUPT OPERATION (INT0) .......................................................................................................... 62

6.7

T0 INTERRUPT OPERATION....................................................................................................................................... 63

6.8

TC0 INTERRUPT OPERATION .................................................................................................................................... 64

6.9

ADC INTERRUPT OPERATION................................................................................................................................... 65

6.10

COMPARATOR INTERRUPT OPERATION (CMP0~CMP2) ..................................................................................... 66

6.11

MULTI-INTERRUPT OPERATION .............................................................................................................................. 67

I/O PORT................................................................................................................................................................................. 68

7.1

OVERVIEW .................................................................................................................................................................... 68

7.2

I/O PORT MODE ............................................................................................................................................................ 69

7.3

I/O PULL UP REGISTER ............................................................................................................................................... 70

7.4

I/O PORT DATA REGISTER ......................................................................................................................................... 71

7.5

PORT 4 ADC SHARE PIN .............................................................................................................................................. 72

TIMERS ................................................................................................................................................................................... 75

8.1

WATCHDOG TIMER..................................................................................................................................................... 75

8.2

T0 8-BIT BASIC TIMER ................................................................................................................................................ 77

8.2.1

OVERVIEW .......................................................................................................................................................... 77

8.2.2

T0 TIMER OPERATION ...................................................................................................................................... 77

8.2.3

T0M MODE REGISTER ....................................................................................................................................... 78

8.2.4

T0C COUNTING REGISTER............................................................................................................................... 78

8.2.5

T0 TIMER OPERATION EXPLAME................................................................................................................... 79

8.3

TC0 8-BIT TIMER/COUNTER ...................................................................................................................................... 80

8.3.1

OVERVIEW .......................................................................................................................................................... 80

8.3.2

TC0 TIMER OPERATION.................................................................................................................................... 81

8.3.3

PULSE WIDTH MODULATION (PWM) ............................................................................................................ 82

8.3.4

TC0 Pulse Generator Function ............................................................................................................................... 83

8.3.5

TC0M MODE REGISTER .................................................................................................................................... 85

8.3.6

TC0C COUNTING REGISTER ............................................................................................................................ 85

8.3.7

TC0R AUTO-RELOAD REGISTER .................................................................................................................... 86

8.3.8

TC0D PWM DUTY REGISTER ........................................................................................................................... 86

8.3.9

TC0 TIMER OPERATION EXPLAME ................................................................................................................ 87

ANALOG COMPARAOTR 0................................................................................................................................................ 89

9.1

OVERVIEW .................................................................................................................................................................... 89

9.2

NORMAL COMPARATOR MODE ............................................................................................................................... 90

9.3

COMPARATOR 0 SPECIAL FUCNITON ..................................................................................................................... 92

9.4

COMPARATOR MODE REGISTER ............................................................................................................................. 93

9.5

COMPARATOR APPLICATION NOTICE ................................................................................................................... 93

9.6

COMPARATOR 0 OPERATION EXPLAME ................................................................................................................ 94

11 0

ANALOG COMPARAOTR 1 ........................................................................................................................................... 95

10.1

OVERVIEW .................................................................................................................................................................... 95

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