AAEON TKS-G20-LN05 Rev.B - Manual (Page 46)

E m b e d d e d C o n t r o l l e r T K S - G 2 0 - L N 0 5 R e v . B
Appendix A Programming the Watchdog Timer A-6
= 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
Bit 3-0 : These bits select IRQ resource for
Watchdog. Setting of 2 selects SMI.