Atmel ATA6264 - Manual (Page 53)

53
4929B–AUTO–01/07
ATA6264 [Preliminary]
Figure 16-5. Watchdog Trigger
Re-configure prescaler during
1 st and 2nd trigger watchdog
command
VCC
15.2 ms
15.4 ms
15.7 ms
15.5 ms
15.3 ms 15.6 ms
15.8 ms
15.9 ms
4.75V
5.0V
Serial
interface
communication
chip
internal
trigger
window
RESQ
t
t
t
t
re-configure
prescaler
T
rg Wdg
CMD
an
y diff
erent
ser
ial interf
ace
command
T
rg Wdg
CMD
T
rg Wdg
CMD