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SN8P26042AHG 数据手册 - Sonix（松翰）
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SN8P26042AHG数据手册
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SN8P2604A
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD Page 4 Version 0.3
3.1 OVERVIEW..................................................................................................................................... 38
3.2 POWER ON RESET......................................................................................................................... 39
3.3 WATCHDOG RESET...................................................................................................................... 39
3.4 BROWN OUT RESET ..................................................................................................................... 40
3.4.1 BROWN OUT DESCRIPTION............................................................................................... 40
3.4.2 THE SYSTEM OPERATING VOLTAGE DECSRIPTION................................................... 41
3.4.3 BROWN OUT RESET IMPROVEMENT .............................................................................. 41
3.5 EXTERNAL RESET........................................................................................................................ 44
3.6 EXTERNAL RESET CIRCUIT ....................................................................................................... 44
3.6.1 Simply RC Reset Circuit .......................................................................................................... 44
3.6.2 Diode & RC Reset Circuit........................................................................................................ 45
3.6.3 Zener Diode Reset Circuit........................................................................................................ 45
3.6.4 Voltage Bias Reset Circuit ....................................................................................................... 46
3.6.5 External Reset IC...................................................................................................................... 47
4
4
4
SYSTEM CLOCK.................................................................................................................................. 48
4.1 OVERVIEW..................................................................................................................................... 48
4.2 CLOCK BLOCK DIAGRAM .......................................................................................................... 48
4.3 OSCM REGISTER........................................................................................................................... 49
4.4 SYSTEM HIGH CLOCK ................................................................................................................. 50
4.4.1 EXTERNAL HIGH CLOCK.................................................................................................... 50
4.4.1.1 CRYSTAL/CERAMIC......................................................................................................... 51
4.4.1.2 RC......................................................................................................................................... 51
4.4.1.3 EXTERNAL CLOCK SIGNAL........................................................................................... 52
4.5 SYSTEM
LOW CLOCK.................................................................................................................. 53
4.5.1 SYSTEM CLOCK MEASUREMENT .................................................................................... 54
5
5
5
SYSTEM OPERATION MODE...........................................................................................................55
5.1 OVERVIEW..................................................................................................................................... 55
5.2 SYSTEM
MODE SWITCHING....................................................................................................... 56
5.3 WAKEUP......................................................................................................................................... 58
5.3.1 OVERVIEW............................................................................................................................. 58
5.3.2 WAKEUP TIME ...................................................................................................................... 58
5.3.3 P1W WAKEUP CONTROL REGISTER................................................................................ 58
6
6
6
INTERRUPT........................................................................................................................................... 59
6.1 OVERVIEW..................................................................................................................................... 59
6.2 INTEN INTERRUPT ENABLE REGISTER................................................................................... 60
6.3 INTRQ INTERRUPT REQUEST REGISTER ................................................................................ 61
6.4 GIE GLOBAL INTERRUPT OPERATION .................................................................................... 61
6.5 PUSH, POP ROUTINE .................................................................................................................... 62
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