AT90USB82/162
Table 9-8.
Watchdog Timer Prescale Select, DIV = 2 (CLKwdt = CLK128 / 5)
Watchdog
Reset/Interrupt Typical
Time-out at
Number of WDT Oscillator
Cycles before 1st time-out
(Early warning)
Early warning Typical
Time-out at
WDP3
WDP2
WDP1
WDP0
V
CC = 5.0V
80 ms
160 ms
320 ms
0.625 s
1.25 s
2.5 s
V
CC = 5.0V
160 ms
320 ms
640 ms
1.25 s
2.5 s
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2K (2048) cycles
4K (4096) cycles
8K (8192) cycles
16K (16384) cycles
32K (32768) cycles
64K (65536) cycles
128K (131072) cycles
256K (262144) cycles
512K (524288) cycles
1024K (1048576) cycles
5 s
5 s
10 s
10 s
20 s
20 s
40 s
40 s
80 s
Reserved
61
7707D–AVR–07/08