MPCBL0010 SBC—Hardware Management Overview
Intel NetStructure® MPCBL0010 Single Board Computer
Technical Product Specification October 2006
126 Order Number: 304120
10.4 IPMB Link Sensor
The MPCBL0010 SBC provides two IPMB links to increase communication reliability to
the shelf manager and other IPM devices on the IPMB bus. These IPMB links work
together for increased throughput where both buses are actively used for
communication at any point. A request might be received over IPMB Bus A, and the
response sent over IPMB Bus B. Any requests that time out are retried on the
redundant IPMB bus. In the event of any link state changes, the events are written to
the MPCBL0010 SBC SEL. IPMC monitors the bus for any link failure and isolates itself
from the bus if it detects that it is causing errors on the bus. Events are sent to signify
the failure of a bus or, conversely, the recovery of a bus.
10.5 Field Replaceable Unit (FRU) Information
The FRU information provides inventory data about the boards where the FRU
information device is located. The part number or version number can be read through
software.
FRU information on the MPCBL0010 SBC includes data describing the SBC as specified
in the PICMG 3.0 requirements. Additional multi-records are added for the BIOS to
write CPU information, BIOS version number, and PMC information to the FRU data
correctly. This information is retrieved by the AdvancedTCA shelf manager (ShMC),
enabling reporting of board-specific information through an out-of-band mechanism.
Tabl e 113 lists the definitions for the multi-record implemented by the firmware as part
of the FRU data.
Note: The MPCBL0010 SBC provides 512 bytes of space to store custom FRU information. See
Section 10.6, “Customizable FRU Area” for more information.
Table 113. FRU Multi-Record Data for CPU/RAM/PMC/BIOS Version Information
Variable Size
(bytes) Data Type
Manufacturer ID (Intel IANA number) 3 0x000157 (LSB first, MSB next) Binary
Record Version 1 1 Binary
Type/Length 1 1 Binary
CPU Numbers 1 1 Binary
Type/Length 1 2 Binary
RAM Info 2 X (in units of 1 MByte) Binary
Type/Length 1 (4 * XXX) + 1 Binary
Number of PMCs 1 0 Binary
Type/Length 1 0xFF Binary
BIOS Version 63 yyyyyyyy ASC-II
End of fields 1 0xC1 Binary