SN8P2200 Series
USB 1.1 Low-Speed 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 4
Version 1.7
OVERVIEW ........................................................................................................................................... 40
RESET............................................................................................................................... 42
RESET ............................................................................................................................ 42
RESET ........................................................................................................................... 43
3.4.1 BROWN OUT DESCRIPTION ........................................................................................................ 43
RESET .............................................................................................................................. 46
3.6.1 Simply RC Reset Circuit .................................................................................................................. 46
3.6.2 Diode & RC Reset Circuit ............................................................................................................... 47
3.6.3 Zener Diode Reset Circuit ............................................................................................................... 47
3.6.4 Voltage Bias Reset Circuit............................................................................................................... 48
3.6.5 External Reset IC............................................................................................................................. 48
4 SYSTEM CLOCK ....................................................................................................................................... 49
OVERVIEW ........................................................................................................................................... 49
REGISTER ................................................................................................................................. 50
4.4.1 INTERNAL HIGH RC...................................................................................................................... 51
4.4.2 EXTERNAL HIGH CLOCK............................................................................................................. 51
4.4.2.1 CRYSTAL/CERAMIC............................................................................................................. 51
5 SYSTEM OPERATION MODE ................................................................................................................ 54
OVERVIEW ........................................................................................................................................... 54
EXAMPLE ......................................................................................... 55
WAKEUP ............................................................................................................................................... 57
5.3.1 OVERVIEW ..................................................................................................................................... 57
5.3.2 WAKEUP TIME............................................................................................................................... 57
6 INTERRUPT................................................................................................................................................ 58
OVERVIEW ........................................................................................................................................... 58
REGISTER....................................................................................... 60
ROUTINE........................................................................................................................... 61