SE7210TP1-E Datasheet, PDF (90/145 Pages) Intel Corporation – Intel® Server Board Technical Product Specification

Intel® Server Board SE7210TP1-E TPS
Platform Management Architecture
5.1.2
National Semiconductor PC87431 integrated management controller
Self-test
The National Semiconductor PC87431 integrated management controller performs various tests
as part of its initialization. If a failure is determined, the National Semiconductor PC87431
integrated management controller stores the error internally. A failure may be caused by a
corrupt National Semiconductor PC87431 integrated management controller FRU, SDR, or
SEL. Two commands may be used to retrieve the detected errors. 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 National Semiconductor PC87431
integrated management controller self-test to be run. It is strongly recommended to reset the
National Semiconductor PC87431 integrated management controller via the Cold Reset
command afterwards.
5.1.3
SMBus Interfaces
The National Semiconductor PC87431 integrated management controller incorporates one
master/slave and two master-only SMBus interfaces. The National Semiconductor PC87431
integrated management controller interfaces with the host through a slave SMBus interface. It
interfaces with the LAN On Motherboard (LOM) and peripherals through two independent
master bus interfaces.
5.1.4
External Interface to National Semiconductor PC87431 integrated
management controller
Figure 11 shows the data/control flow to and within the functional modules of the National
Semiconductor PC87431 integrated management controller. External interfaces from the host
system, LOM, and peripherals, interact with the National Semiconductor PC87431 integrated
management controller through the corresponding interface modules as shown.
The National Semiconductor PC87431 integrated management controller communicates with
the internal modules using its private SMBus. External devices and sensors interact with the
National Semiconductor PC87431 integrated management controller using the peripheral
SMBus through SIO. LOM communicates through the LOM SMBus. GPIO pins are available
and can be configured for general purpose output or digital input events. Dedicated LED lines
are available for LED/color control.
Also built into the National Semiconductor PC87431 integrated management controller are the
control functions for both the power supply and front panel.
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