Intel® Server Board SE7520BD2 Technical Product SpecificationPlatform Management Architecture
Revision 1.3 Intel Confidential
85
4.2.2 mBMC Self-test
The mBMC performs various tests as part of its initialization. If a failure is determined, the
mBMC stores the error internally. A failure may be caused by a corrupt mBMC FRU, SDR, or
SEL. The IPMI 1.5 Get Self Test Results command can be used to return the first error
detected.
Executing the Get Self Test Results command causes the mBMC self-test to be run. It is
strongly recommended to reset the mBMC via an AC cycle.
4.2.3 SMBus Interfaces
The mBMC incorporates one slave and two master-only SMBus interfaces. The mBMC
interfaces with the host through the slave SMBus interface. It interfaces with the LAN On
Motherboard (LOM) and peripherals through the two independent master bus interfaces.
4.2.4 External Interface to mBMC
Figure 12 shows the data/control flow to and within the functional modules of the mBMC.
External interfaces from the host system, LOM, and peripherals, interact with the mBMC
through the corresponding interface modules as shown.
The mBMC communicates with the internal modules using its private SMBus. External devices
and sensors interact with the mBMC using the peripheral SMBus through SIO. LOM
communicates through the LOM SMBus. GPIO pins are available and are used for various input
and output functions. Dedicated LED lines are used for LED/color control.
Also built into the mBMC are the control functions for both the power supply and front panel.
To Next Page
Loading...
Need help?
General
