Atmel ATA6264 - 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
Trg Wdg CMD
any different
serial interface
command
Trg Wdg CMD Trg Wdg CMD