ADLINK Technology COM Express Express-HLE, Руководство пользователя

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Page 40 Express-HLE
5 Smart Embedded Management Agent (SEMA)
The onboard microcontroller (BMC) implements power sequencing and Smart Embedded Management Agent (SEMA) 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.
•
Temperature monitoring of CPU and board temperature. Minimum and maximum temperature values of CPU and board are stored
in flash.
•
Power cycles counter
•
Boot counter. Counts the number of boot attempts.
•
Watchdog Timer (Type-II). Set / Reset / Disable Watchdog Timer. Features auto-reload at power-up.
•
System Restart Cause. Power loss / BIOS Fail / Watchdog / Internal Reset / External Reset
•
Fail-safe BIOS support. In case of a boot failure, hardware signals tells external logic to boot from fail-safe BIOS.
•
Flash area. 1kB Flash area for customer data
•
128 Bytes Protected Flash area. Keys, IDs, etc. can be stored in a write- and clear-protectable region.
•
Board Identify. Vendor / Board / Serial number / Production Date
•
Main-current & voltage. Monitors drawn current and main voltages
For a detailed description of SEMA features and functionality, please refer to SEMA Technical Manual and SEMA Software Manual ,
downloadable at: http://www.adlinktech.com/sema/ .