reset source status register
RESET_CAUSE | reset source indicator. xxxxxxxx1b = Power-on Reset; xxxxxxx1xb = Brown-Down Reset; xxxxxx1xxb = External pin Reset; xxxxx1xxxb = Watch Dog Reset; xxxx1xxxxb = Lock Up Reset; xxx1xxxxxb = Reboot Reset; xx1000000b = CPU system Reset requirement; x10000000b = Wake Up reset 10000000b = CPU software Reset; |
RST_CAUSE_CLR | Write ‘1’ clear RESET_CAUSE bits; |