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7 IPMI Functions List
The AMC-S402 module employs a Module Management Controller (MMC) as specified in the
AMC.0 specification. The MMC provides an Intelligent Platform Management Interface (IPMI)
which will communicate with the ATCA and MicroTCA shelf managers. This MMC controls
and monitors the following:
Hot swap communication with the shelf manager
Inlet air temperature
Voltage monitoring
Electronic keying as described in the AMC.0 specification
FRU information
Drives LED indicators for Hot Swap, In Service, and Out of Service
7.1 IPMI and Management Controller (IPMC)
The design features an IPMI controller consisting of a 16-bit microcontroller, flash
and SRAM. The microcontroller uses I
2
C interface to communicate the shelf
management controller (ShMC), and sensors and MMC devices on AMC modules.
An I2C connection provides the communication path between the MMC the
temperature sensor. The I2C serial bus also routes to the SFP+ modules.
Support hot-swap operation as defined for AMC modules in PICMG AMC.0
specification “Fail-safe flash update” - if interrupted at anytime, the MMC
firmware is still able to respond and re-flash.
“I2C hang recovery” - able to detect and recover from an I2C bus hang.
7.2 Sensor Data Records
The MMC monitors the status of the module and provides this data so the shelf
manager can read it. Below are the SDRs that the AMC-S402 module creates.
Table 12 Sensor Data Records
Sensor UNR UC UNC LNC LC LNR ID String
1.8V 1.98 1.93 1.90 1.70 1.67 1.62 +1.8V
5.0V 5.50 5.35 5.25 4.75 4.65 4.5 +5V
12V 13.60 13.40 13.00 11.00 10.60 10.400 +12V
Board Temp (LM60) 80 70 60 N/A N/A N/A Board Temp
Inlet Temp (LM75) 70 60 50 N/A N/A N/A Inlet Temp
The AMC-S402 includes the standard FRU data records per the IPMI Platform
Management FRU Information Storage Definition, Board Info Area. The AMC-S402
includes additional FRU records as defined in the PICMG 2.9 specification.
6806800H60A AMC-S402 Installation and Use 20