Intel SBC-455 - Manual (Page 37)

Chapter 2 Installation 29
The watchdog timer-out interval can be set at 15 levels between 2
and 32 seconds. The following table shows the Hex values for
the appropriate time-out intervals:
Watchdog timer delay values
Delay time Value (Hex) Delay time Value (Hex)
0~2 F 16~18 7
2~4 E 18~20 6
4~6 D 20~22 5
6~8 C 22~24 4
8~10 B 24~26 3
10~12 A 26~28 2
12~14 9 28~30 1
14~16 8 30~32 0