Appendix 1 Watch Dog Timer - Nexcom Peak 555A User Manual

Peak 555A User's Guide
Appendix
Watch Dog Timer
Set up menu: refer to Page 4-24, "Integrated Peripherals"
WDT Configuration port
Watch Dog Timer
WDT Time out active for Reset
WDT Active Time
You can program "INDEX 7D" in the CMOS RAM to read or change the set up
information.
Example • Read index 7D in the CMOS RAM
MOV
MOV
OUT
MOV
IN
• Write to index 7D in the CMOS RAM
MOV
MOV
OUT
MOV
MOV
OUT
Watch Dog Timer
F2 Default at F2
Disabled 1. Default at disabled
Enabled 2. Enabled for user's programming
Default at Reset
NMI
1 sec Default at 64sec
2 sec
4 sec
8 sec
16 sec
32 sec
64 sec
DX, 70
AL, 7D
DX, AL
DX, 71
AL, DX
DX, 70
AL, 7D
DX, AL
DX, 71
AL, Data
DX, AL
A-1