SN8F27E64KB datasheet(4/192 Pages) SONIX

4 / 192 page

SN8F27E60 Series

8-Bit Flash Micro-Controller with Embedded ICE and ISP

SONiX TECHNOLOGY CO., LTD

Page 4

Version 1.4

3.4.2 LOW VOLTAGE DETECTOR (LVD) .......................................................................................... 46

3.4.3 BROWN OUT RESET IMPROVEMENT...................................................................................... 48

3.5 EXTERNAL RESET .............................................................................................................................. 49

3.6 EXTERNAL RESET CIRCUIT ............................................................................................................. 49

3.6.1 Simply RC Reset Circuit ................................................................................................................. 49

3.6.2 Diode & RC Reset Circuit ............................................................................................................... 50

3.6.3 Zener Diode Reset Circuit ............................................................................................................... 50

3.6.4 Voltage Bias Reset Circuit .............................................................................................................. 51

3.6.5 External Reset IC............................................................................................................................. 51

44 SYSTEM CLOCK ....................................................................................................................................... 52

4.1 OVERVIEW ........................................................................................................................................... 52

4.2 FCPU (INSTRUCTION CYCLE) ............................................................................................................ 52

4.3 NOISE FILTER ...................................................................................................................................... 52

4.4 SYSTEM HIGH-SPEED CLOCK .......................................................................................................... 52

4.4.1 HIGH_CLK CODE OPTION.......................................................................................................... 53

4.4.2 INTERNAL HIGH-SPEED OSCILLATOR RC TYPE (IHRC) .................................................... 53

4.4.3 EXTERNAL HIGH-SPEED OSCILLATOR.................................................................................. 53

4.4.4 EXTERNAL OSCILLATOR APPLICATION CIRCUIT .............................................................. 53

4.5 SYSTEM LOW-SPEED CLOCK ........................................................................................................... 54

4.6 OSCM REGISTER ................................................................................................................................. 54

4.7 SYSTEM CLOCK MEASUREMENT ................................................................................................... 55

4.8 SYSTEM CLOCK TIMING ................................................................................................................... 55

55 SYSTEM OPERATION MODE ................................................................................................................ 58

5.1 OVERVIEW ........................................................................................................................................... 58

5.2 NORMAL MODE................................................................................................................................... 59

5.3 SLOW MODE......................................................................................................................................... 60

5.4 POWER DOWN MDOE......................................................................................................................... 60

5.5 GREEN MODE....................................................................................................................................... 61

5.6 OPERATING MODE CONTROL MACRO .......................................................................................... 62

5.7 WAKEUP ............................................................................................................................................... 63

5.7.1 OVERVIEW .................................................................................................................................... 63

5.7.2 WAKEUP TIME ............................................................................................................................. 63

5.7.3 P1W WAKEUP CONTROL REGISTER ....................................................................................... 64

66 INTERRUPT................................................................................................................................................ 65

6.1 OVERVIEW ........................................................................................................................................... 65

6.2 INTERRUPT OPERATION ........................................................................................................................... 65

6.3 INTEN INTERRUPT ENABLE REGISTER ......................................................................................... 66

6.4 INTRQ INTERRUPT REQUEST REGISTER....................................................................................... 67

6.5 GIE GLOBAL INTERRUPT OPERATION .......................................................................................... 68

6.6 EXTERNAL INTERRUPT OPERATION (INT0~INT1) ...................................................................... 69

6.7 T0 INTERRUPT OPERATION.............................................................................................................. 70

6.8 TC0 INTERRUPT OPERATION ........................................................................................................... 71

6.9 TC1 INTERRUPT OPERATION ........................................................................................................... 72

6.10 TC2 INTERRUPT OPERATION ......................................................................................................... 73

6.11 T1 INTERRUPT OPERATION............................................................................................................ 74

6.12 ADC INTERRUPT OPERATION........................................................................................................ 75

6.13 SIO INTERRUPT OPERATION.......................................................................................................... 76

6.14 UART INTERRUPT OPERATION ..................................................................................................... 77

6.15 MULTI-INTERRUPT OPERATION ................................................................................................... 78

77 I/O PORT ..................................................................................................................................................... 79

7.1 OVERVIEW ........................................................................................................................................... 79

7.2 I/O PORT MODE ................................................................................................................................... 80

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