User`s manual

1.8.3 Watchdog timer output (J2)

The AIMB-744 contains a watchdog timer that will reset the CPU or send

a signal to IRQ11 in the event the CPU stops processing. This feature

means the AIMB-744 will recover from a software failure or an EMI

problem. The J2 jumper settings control the outcome of what the com-

puter will do in the event the watchdog timer is tripped.

Table 1.4: Watchdog timer output (J2)

Function

Jumper Setting

IRQ11

* Reset

* 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.

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