Using The Module; Watchdog; Lemt Functions - Lippert Cool SpaceRunner LX800 Technical Manual

4 Using the Module

4.1 Watchdog

A watchdog timer is integrated on-board and managed with the SMC LEMT functionality. There are different
possibilities for its activation. More details can be found in the next chapter where a detailed description of the
SMC can be found.
A watchdog event is triggered by internal circuit of the ITE8712 Super I/O. It is possible to program the trigger
duration, see chapter "Watchdog" for an example.

4.2 LEMT functions

The onboard Microcontroller implements power sequencing and LEMT (LiPPERT Enhanced Management
Technology) functionality. The microcontroller communicates via the System Management Bus with the
CPU/Chipset. The following functions are implemented:
·
Total operating hours counter
Counts the number of hours the module has been run in minutes.
·
On-time minutes counter
Counts the seconds since last system start.
·
Power cycles counter
·
Watchdog Timer
Set / Reset / Disable Watchdog Timer.
· System Restart Cause
Power loss / Watchdog / External Reset.
·
Flash area
1kB Flash area for customer data
·
Protected Flash area
128 Bytes for Keys, ID's, etc. can stored in a write- and clear-protect able area.
·
Board Identify
Vendor / Board / Serial number
LEMT Tools are available for Windows and Linux, LEMT functionality can also be used in applications. Please ask
our support for the LEMT software manual and technical manual regarding more details on functionality and how
to use it.
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