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(V
BOT+
in
), the delay counter starts the MCU after the Time-out period t
TOUT
has
expired.
The BOD circuit will only detect a drop in VCC if the voltage stays below the trigger level for
longer than t
BOD
given in
Figure 7-5.
Brown-out Reset During Operation
7.1.6
Watchdog Reset
When the Watchdog times out, it will generate a short reset pulse of one CK cycle duration. On
the falling edge of this pulse, the delay timer starts counting the Time-out period t
TOUT
. Refer to
for details on operation of the Watchdog Timer.
Figure 7-6.
Watchdog Reset During Operation
V
CC
RESET
TIME-OUT
INTERNAL
RESET
V
BOT-
V
BOT+
t
TOUT
CK
CC
