Cmos Clear (J1); Table 1.3:Cmos (J1); Watchdog Timer Output (J2); Table 1.4:Watchdog Timer Output (J2) - Advantech PCA-684 User Manual

Full-size socket 478 intel pentium 4 processor-based pci/isa bus cpu card

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1.7.2 CMOS clear (J1)

The PCA-6184CPU card contains a jumper that can erase CMOS data

and reset the system BIOS information. Normally this jumper should be

set with pins 1-2 open. If you want to reset the CMOS data, set 1-2 pin for

just a few seconds, and then move the jumper back to 1-2 open. This pro-

cedure will reset the CMOS to its default setting.

Table 1.3: CMOS (J1)

* Keep CMOS data1-2 open

Clear CMOS data 1-2 closed

* default setting

The PCA-6184 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-6184 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

IRQ11

1-2 closed

* Reset

2-3 closed

* default setting

Function

Jumper Setting

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Pca-6184