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6.4
congatec Board Controller (cBC)
The conga-PA7 is equipped with a Microchip Technology MEC1705 microcontroller. This onboard microcontroller plays an important role for
most of the congatec BIOS features. The cBC fully isolates some of the embedded features such as system monitoring, I²C bus from the x86
core architecture. This improves performance and reliability, even during low power mode.
6.4.1
Fan Control
The congatec Board Controller on the conga-PA7 controls the power supply to the fan with the PWM signal.
6.4.2
Power Loss Control
The cBC has full control of the power-up of the SBC. Therefore, it can be used to specify the behavior of the system after an AC power loss
condition. Supported modes are “Turn On”, “Remain Off” and “Last State”.
6.4.3
Board Information
The cBC provides a rich data-set of manufacturing and board information such as serial number, EAN number, hardware and firmware revisions,
and so on. It also keeps track of dynamically changing data like runtime meter and boot counter.
6.5
OEM BIOS Customization
The conga-PA7 is equipped with congatec Embedded BIOS, which is based on American Megatrends Inc. Aptio UEFI firmware. The congatec
Embedded BIOS allows system designers to modify the BIOS. For more information about customizing the congatec Embedded BIOS, refer
to the congatec System Utility user’s guide CGUTLm1x.pdf at www.congatec.com or contact technical support. The customization features
supported are described in the following sections.
6.5.1
OEM Default Settings
This feature allows system designers to create and store their own BIOS default configuration. Customized BIOS development by congatec for
OEM default settings is no longer necessary because customers can easily perform this configuration by themselves using the congatec system
utility CGUTIL. See congatec application note AN8_Create_OEM_Default_Map.pdf on the congatec website for details on how to add OEM
default settings to the congatec Embedded BIOS.
