Nexcom PEAK 735 Series User Manual page 71

i.e. D3=1, Enables WDT
OR al, 00001000b ; Enable the WDT
After finishing the above settings, you must output the Control Register' s value to
WDT Configuration Port. Then WDT will start according to the above settings.
MOV dx, F2h
OUT dx, al
Appendix B:GPIO USER GUIDE
DIGITAL I/O UESD PORT 801
I 3
{
; Setting WDT Configuration Port
; Output the Control Register Value
I 2 I1 I0
Input
JP17
IN 0
1
IN 1
3
IN 2
5
IN 3
7
O3 O2 O1
} {
Output
OUT 0
2
OUT 1
4
OUT 2
6
OUT 3
8
70
O0
}