Cmos Clear & Me Clear (Jcmos1 & Jme1); Watchdog Timer Output (Jwdt1) - Advantech AIMB-784 User Manual

1.8.2 CMOS clear & ME clear (JCMOS1 & JME1)
The AIMB-784 motherboard contains a jumper that can erase CMOS data and reset
the system BIOS information. Normally this jumper should be set with pins 1-2
closed. If you want to reset the CMOS data, set J1 to 2-3 closed for just a few sec-
onds, and then move the jumper back to 1-2 closed. This procedure will reset the
CMOS to its default setting.
Table 1.3: JCMOS1/JME1
Function
* Keep CMOS and ME data
Clear CMOS and ME data
* default setting
1.8.3

Watchdog timer output (JWDT1)

The AIMB-784 contains a watchdog timer that will reset the CPU. This feature means
the AIMB-784 will recover from a software failure or an EMI problem. The JWDT1
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 (JWDT1)
Function
NC
* 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.
Jumper Setting
1 2 3
1-2 closed
1 2 3
2-3 closed
Jumper Setting
9
2-4 closed
4-6 closed
AIMB-784 User Manual