FUNCTIONAL DEVICE OPERATION
RESET AND WATCHDOG PINS, SOFTWARE WATCHDOG OPERATIONS
Power-Up
Reset
Behavior after power-up if no trigger appears
Behavior after reset of BATFAIL if no trigger appears
Normal
Request
Yes
Batfail
No
No
No
Yes
Trigger
Yes
No Stop
Sleep
Normal
Figure 14. Behavior at SBC Power-Up
WD: Timeout 350 ms
Power
Down
Reset Counter
Reset
Normal Request
(3.4 ms) Expired
SPI: MCR (0000) & Normal Debug
Normal Debug
Normal
SPI: MCR (0000) & Stand-by Debug
Stand-by Debug
Figure 15. Transitions to Enter Debug Modes
33989
Analog Integrated Circuit Device Data
Freescale Semiconductor
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