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KONTRON
21. Watchdog Timer
The watchdog timer is integrated in the onboard SMSC SCH3114
controller of the coolMONSTER/PM and can issue a reset to the
system or generate a non-maskable interrupt (NMI). The watchdog
timer circuit has to be triggered within a specified time by the
application software. If the watchdog is not triggered because
proper
software
execution
fails
occurs, it will reset the system or generate the NMI.
21.1 Configuration
You can set the watchdog timer to disabled, reset or NMI mode.
You can specify the delay time and the timeout (trigger period)
from 1 second to 30 minutes. The delay time is the time after
first
initialization
before
the
timeout is the time the watchdog has to be triggered within. You
can make the initialization settings in the BIOS setup. Refer to
the Watchdog Settings Submenu in the Appendix B: BIOS Operation
chapter for information on configuration.
21.2 Programming
21.2.1
Initialization
You can initialize the watchdog timer from the BIOS setup. You
also can set up the initialization from the application software
with help of the JIDA (Jumptec Intelligent Device Architecture)
programmer's interface.
21.2.2
Trigger
The
watchdog
needs
to
be
triggered
software within a specified timeout period. You can only do this
in the application software with help of the JIDA programmer's
interface.
For information about the JIDA programmer's interface refer to
the JIDA BIOS extension section in the Appendix B: BIOS chapter
and separate documents available in the JIDA software packages
on the Kontron Web site.
coolMONSTER/PM User's Guide
55
or
a
hardware
malfunction
trigger
period
starts.
The
out
of
the
application
Hardware Monitor
22. Hardware Monitor
The SMSC SCH3114 controller monitors several critical hardware
parameters of the system, including power-supply voltages, fan
speed and CPU temperature, which are very important for a high-
end
computer
system
to
remain
controller is connected via the system management (SM) bus to
the south bridge.
The following parameters are monitored:
†
+3.3V from onboard DC/DC
†
CPU core voltage
†
+5V standby voltage
†
Battery voltage
†
CPU temperature with on-die diode
†
CPU fan speed
22.1 Configuration
You can use the Hardware Monitor submenu in the BIOS Setup
Utility to obtain information on voltages, fan speed and to
check the temperature of the CPU die. For more information on
this submenu, see the Appendix B: BIOS Operation chapter in this
manual.
To monitor the parameters of this feature from your operating
system, Kontron recommends that you use the 32-bit protected
mode
JUMPtec's
Intelligent
Device
(JIDA
32)
with
the
test
and
95/98/ME/NT/2000/XP, which is available on the Kontron Web site.
System Controller
56
KONTRON
stable
and
properly.
This
Architecture
32-bit
driver
demo
application
for
Windows
coolMONSTER/PM User's Guide
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