6806800H62B ATCA-S201ATCA-S201 Installation and Use Guide 139
14 IPMI Functions List
The ATCA-S201 module supports the intelligent platform management interface (IPMI)
version 1.5. This system is used to collect status information from on on-board sensors as
well as sensors installed on AMC or RTM modules. Collected information items include:
Hot swap communication with the shelf manager
Inlet air temperatures
Voltage monitoring
Electronic Keying as described in the AMC.0 specification
FRU information
Drives blue LED indicators for hot swap, OOS (out of service)
Drives green LED for module “OK”
The RTM-ATCA-SXXX module includes an MMC device for reporting status information to
the ATCA blade. This MMC utilizes an Intelligent Platform Management Interface (IPMI)
which will communicate with the ATCA. This MMC controls and monitors the following:
Hot Swap communication with the shelf manager
Inlet air temperatures
Voltage monitoring
Electronic Keying as described in the AMC.0 specification
FRU information
Drives “blue” LED indicators for Hot Swap. OOS (out of service),
Drives “green LED for module “OK”
14.1 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), sensors, and MMC devices on AMC modules and
the RTM if installed.
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.
14.2 Sensor data records
The MMC monitors the status of the module and provides this data so it can be read
by the shelf manager. Below are the SDRs that the ATCA-S201 and the RTM-ATCA-
SXXX modules create.
