Atmel ATA6264 - Manual (Page 50)

50
4929B–AUTO–01/07
ATA6264 [Preliminary]
Figure 16-4. Watchdog Trigger Functional Principle (Unsuccessful Watchdog Trigger)
Serial
interface
communication
chip
internal
trigger
window
Serial
interface
communication
chip
internal
trigger
window
t_retrigger
4 4
t_retrigger
RESQ
RESQ
t
t
t
4 4
inactive inactive
active active
t_retrigger
4 4
t_retrigger
t
t
t
4 4
inactive inactive
active active
T
rg Wdg
CMD
T
rg Wdg
CMD
T
rg Wdg
CMD
T
rg Wdg
CMD
Missing
command
ser
ial interf
a
ce
additional
T
rg Wdg
CMD
T
rg Wdg
CMD
T
rg Wdg
CMD
T
rg Wdg
CMD
command
ser
ial interf
a
ce
additional
command
ser
ial interf
a
ce
additional