Advantech DVMB-554E User Manual

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1.8.3 Watchdog timer output (J4) 
The DVMB-554E contains a watchdog timer that will reset the CPU or 
send a signal to PIRQE in the event the CPU stops processing. This 
feature means the DVMB-554E will recover from a software failure or an 
EMI problem. The J4 jumper settings control the outcome of what the 
computer will do in the event the watchdog timer is tripped. 
 
 
Table 1.4: Watchdog timer output (J4) 
 
Function 
Jumper Setting 
 
IRQ11 
 
1-2 closed 
 
* Reset 
2-3 closed 
 
*default setting 
 
 
 
 
Note: 
The interrupt output of the watchdog timer is a 
low level signal. It will be held low until the 
watchdog timer is reset.
 
 
 
 
 
Table 1.5: ATX/AT Mode selector (J5) 
 
Function 
Jumper Setting 
 
AT Mode 
 
1-2 closed 
 
ATX Mode 
2-3 closed