ADLINK nanoX-BT - Manual (Page 30)

Page 30 nanoX-BT
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
¾ Total operating hours counter. Counts the number of hours the module has been run in minutes.
¾ On-time minutes counter. Counts the seconds since last system start.
¾ Temperature monitoring of CPU and board temperature. Minimum and maximum temperature values of CPU and board are stored in
flash.
¾ Power cycles counter
¾ Boot counter. Counts the number of boot attempts.
¾ Watchdog Timer (Type-II). Set / Reset / Disable Watchdog Timer. Features auto-reload at power-up.
¾ System Restart Cause. Power loss / BIOS Fail / Watchdog / Internal Reset / External Reset
¾ Fail-safe BIOS support. In case of a boot failure, hardware signals tells external logic to boot from fail-safe BIOS.
¾ Flash area. 1kB Flash area for customer data
¾ 128 Bytes Protected Flash area. Keys, IDs, etc. can be stored in a write- and clear-protectable region.
¾ Board Identify. Vendor / Board / Serial number / Production Date
¾ Main-current & voltage. Monitors drawn current and main voltages
For a detailed description of SEMA features and functionality, please refer to the SEMA Technical Manual and SEMA Software Manual,
downloadable at: http://www.adlinktech.com/PD/web/PD_detail.php?cKind=&pid=1274
Note: Due to limitations of the Intel “Bay Trail” platform, SEMA can only obtain CPU temperature readings when the OS is running.