SN8P1800
8-bit micro-controller build-in 12-bit ADC + 72 dots LCD driver
OVERVIEW................................................................................................................................. 44
EXTERNAL RESET DESCRIPTION........................................................................................... 45
LOW VOLTAGE DETECTOR (LVD) DESCRIPTION.................................................................. 46
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OSCILLATORS................................................................................................................ 47
OVERVIEW................................................................................................................................. 47
CLOCK BLOCK DIAGRAM ..................................................................................................... 47
OSCM REGISTER DESCRIPTION ......................................................................................... 48
OPTION REGISTER DESCRIPTION ...................................................................................... 48
EXTERNAL HIGH-SPEED OSCILLATOR............................................................................... 49
OSCILLATOR MODE CODE OPTION .................................................................................... 49
OSCILLATOR DEVIDE BY 2 CODE OPTION......................................................................... 49
OSCILLATOR SAFE GUARD CODE OPTION ....................................................................... 49
SYSTEM OSCILLATOR CIRCUITS ........................................................................................ 50
External RC Oscillator Frequency Measurement .................................................................... 51
SYSTEM MODE DESCRIPTION ................................................................................................ 52
OVERVIEW ............................................................................................................................. 52
NORMAL MODE ..................................................................................................................... 52
SLOW MODE .......................................................................................................................... 52
GREEN MODE........................................................................................................................ 52
POWER DOWN MODE........................................................................................................... 52
SYSTEM MODE CONTROL ....................................................................................................... 53
SN8P1800 SYSTEM MODE BLOCK DIAGRAM ..................................................................... 53
SYSTEM MODE SWITCHING ................................................................................................ 54
WAKEUP TIME........................................................................................................................... 55
OVERVIEW ............................................................................................................................. 55
HARDWARE WAKEUP ........................................................................................................... 55
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TIMERS COUNTERS....................................................................................................... 56
WATCHDOG TIMER (WDT) ....................................................................................................... 56
BASIC TIMER 0 ( T0 ) ................................................................................................................ 57
OVERVIEW ............................................................................................................................. 57
T0M REGISTER DESCRIPTION ............................................................................................ 57
T0C COUNTING REGISTER .................................................................................................. 58
SONiX TECHNOLOGY CO., LTD
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Revision 1.94
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