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- powerUp (0), Default power up
- rstLow (1), Reset pin
- watchdogExpired (2), Watch dog activate
- flashViolation (3), Flash Violation
- nonMaskableInterrupt (4), reset due to non maskable interuptinterrupt
- lowPower (5), Low Power (NEW in 1.10)
- software (6) , Software Reset. (NEW in 1.10)
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