R U G G E D S I B
E m b e d d e d C o n t r o l l e r
A E C - 6 8 4 0
AEC-6840 User Manual
58
= 0 x 03 Time-out occurs after 3 second/minutes
… … … … … … … … … … … … … … … … ..
= 0 x FF Time-out occurs after 255 second/minutes
CF5 (Default 0 x 00)
Bit [7]: Reserved.
Bit [6]: invert Watchdog Timer Status
Bit 5: Force Watchdog Timer Time-out, Write only
1
Force Watchdog Timer Time-out event; this bit is self-
clearing.
Bit 4: Watchdog Timer Status, R/W
1
Watchdog Timer Time-out occurred.
0
Watchdog Timer counting
.
You can use DEBUG commands to test watchdog function.
Some examples are listed as below
：
-o 4e 87 Enter W83697UF configuration mode
-o 4e 87
-o 4e 07 logic device register
-o 4f 08 logic device number
-o 4e f3 select register CRF3
-i 4f read F1 value
-00 F3 value
；
Bit 2=0 ----second
1 ----minute
-o 4e f4 select register CRF4
