Kontron AM4011, Руководство пользователя

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AM4011 Functional Description
ID 1022-1626, Rev. 1.0 Page 2 - 23
P R E L I M I N A R Y
2.5 Module Management
A dedicated Module Management Controller (MMC) on the AM4011 manages the module and
supports a defined subset of IPMI commands and sensors. For information on IPMI, refer to
the IPMI FW User Guide for the AM4011 Module provided with the documentation CD.
2.5.1 Module Management Controller
The Module Management Controller is based on the 16-bit H8 microcontroller with two redun-
dant 512 kB Flash blocks and 40 kB RAM. The two redundant 512 kB Flash blocks provide an
automatic roll-back strategy to the backup copy, for example, if a Firmware upgrade is inter-
rupted or corrupted. In addition to the code Flash, the field replacement unit (FRU) inventory
information is stored in the nonvolatile memory on the EEPROM. It is possible to store up to
4 KB within the FRU inventory information.
The processor communicates with the MMC via the Keyboard Controller Style (KCS) interface.
The MMC is able to communicate directly with the FPGA via the I²C interface. This can be used
to read the POST codes and configure the BIOS default boot parameters.
The MMC is used to manage the AM4011, for example, it monitors several onboard tempera-
ture conditions, board voltages and the power supply status, manages hot swap LEDs and op-
erations, reboots the board, etc. Additionally, the MMC can intervene in the operating status of
the system by reading temperature values, shutting down systems, generating alarm signals if
fault conditions occur. These fault conditions are simultaneously logged in nonvolatile memory
for analysis and for fault recovery.
To provide a reliable system, the AM4011 includes six temperature sensors distributed over
the complete board to measure onboard temperature values and regulate the board’s power
consumption. The AM4011 uses the following temperature sensors:
• Inlet board temperature sensor near the AMC Card-edge connector
(Inlet AMC Sensor)
• Outlet board temperature sensor near the AMC Card-edge connector
(Outlet AMC Sensor)
• Inlet board temperature sensor near the processor (Inlet Processor Sensor)
• Outlet board temperature sensor near the processor (Outlet Processor Sensor)
• Intel® Core™2 Duo processor die temperature sensor
• Intel® 3100 chipset die temperature sensor
The MMC also includes an integrated Watchdog to protect against CPU lockups. This enhanc-
es the board’s characteristics and improves the system’s reliability.
The MMC Firmware is designed and specially made for AMC environments, and is compliant
with the PICMG 3.0 and IPMI v2.0 rev 1.0 specifications.
Additionally, IPMI over LAN (IOL) and Serial over LAN (SOL) are supported by the AM4011.
For information on IPMI, refer to the IPMI FW User Guide for the AM5010 Module provided with
the documentation CD.