Specifications

Chapter 1 Hardware Configuration 15

1.8.3 Watchdog timer output (J2)

The PCA-6180 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 PCA-6180 will recover from a software failure or an

EMI problem. The J2 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 (J2)

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.