Copyright © 2006 congatec AG
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Once the BIOS Setup Program has been entered and the settings have been changed, the user saves the settings and exits the BIOS Setup
Program using the X key feature. After the X function has been invoked, the CMOS Data is stored in a dedicated non-volatile CMOS Data
Backup area located in the BIOS Flash ROM chip as well as RTC. The CMOS Data is written to and read back from the CMOS Data Backup
area in order to verify that the write procedure was successful. Once verified the X key Save and Exit function continues to perform some
minor processing tasks and finally reaches an automatic reset point, which instructs the module to reboot. After the Automatic Reset has been
triggered the congatec module can be powered off and, if need be, removed from the baseboard without losing the new CMOS settings.
5.4
Suspend to Ram
The Suspend to RAM feature is available on the conga-CLX. It supports the following wake up events:
Power Button
Can be used to put system to sleep if configured in software (e.g. OS) and can be used to wake system up from S3.
5.5
congatec Battery Management Interface
In order to facilitate the development of battery powered mobile systems based on embedded modules, congatec AG has defined an interface
for the exchange of data between a CPU module (using an ACPI operating system) and a Smart Battery system. A system developed according
to the congatec Battery Management Interface Specification can provide the battery management functions supported by an ACPI capable
operating system (e.g. charge state of the battery, information about the battery, alarms/events for certain battery states, ...) without the need
for any additional modifications to the system BIOS.
The conga-XLX BIOS fully supports this interface. For more information about this subject visit the congatec website and view the following
documents:
congatec Battery Management Interface Specification
Battery System Design Guide
conga-SBMC User’s Guide
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