User`s manual
System Management:  FRU Inventory
ATCA-9305 User’s Manual 10009109-01
7-50
Event-generating sensors with a Threshold Event/Reading Type (0x01) initiate an event mes-
sage when a sensor reading crosses the defined threshold. The default thresholds for a par-
ticular sensor are retrieved by sending the IPMC a Get Sensor Thresholds command. The 
system management controller must send the IPMC a Get Sensor Reading command to 
retrieve the current sensor reading. Refer to the IPMI specification listed in 
Ta bl e 1 - 2 for com-
plete details on using these commands.
FRU INVENTORY
The IPMC stores Field Replaceable Unit (FRU) information in its boot memory (SROM). The 
data structure contains information such as the product name, part number, serial number, 
manufacturing date, and E-keying information. Refer to the IPMI specification for complete 
details on the FRU data structure. 
Ta b le 7- 4 9  lists the general contents of the ATCA-9305’s 
FRU information:
Table 7-49: FRU Definition 
9Event Dir/Event 
Type
Upper bit indicates direction (0 = Assert, 1= Deassert); Lower 7 bits 
indicate type of threshold crossing or state transition
10 Event Data 0 Data for sensor and event type
11 Event Data 1 (Optional) Data for sensor and event type
12 Event Data 2 (Optional) Data for sensor and event type
13 Chk2 Checksum #2
1. Each byte has eight bits.
Item: Description: 
Common Header
Version Version number of the overall FRU data structure defined by the IPMI 
FRU specification
Internal Use Area
Version Version number of the Internal Use Area data structure defined by 
the IPMI FRU specification
Internal Use Size 0x100 bytes are allocated for customer use in this area
Board Information Area
Version Version number of the Board Information Area data structure 
defined by the IPMI FRU specification
Language Code 0x01 = English
Manufacturing Date/Time Variable, expressed as the number of minutes since 12:00 AM on
January 1, 1996
Board Manufacturer “Emerson” 
Board Product Name “ATCA-9305”
Byte:
1
Field: Description:  (continued)










