SSI
ERP2U Power Supply Design Guide, V1.0
8.3SMBus Communication
STATUS
Optional
There may be SMBus communication to the power assembly to monitor the cage and modules. This would require a serial EEPROM to store FRU data of each module and communicate the information onto the SMBus. There may also be a device in the cage to monitor the module failure and presence status via the SMBus. If there is a fan in the cage, the SMBus device in the cage may also monitor the fan(s) for failure.
8.3.1Field Replacement Unit (FRU) Signals
STATUS
Optional
Two pins will be allocated for the FRU information on the power supply connector. One pin is the Serial Clock (SCL). The second pin is used for Serial Data (SDA). Both pins are
8.3.2Module FRU Data
FRU data shall be stored starting in address location 8000h through 80FFh. The FRU data format shall be compliant with the IPMI specifications. The current version of these specifications are available at: http:\\developer.intel.com/design/servers/ipmi/spec.htm.
8.3.3Module FRU Data Format
The information to be contained in the FRU device is shown in the following table.
| Table 25: FRU Device Information | |
Area Type |
| Description |
Common Header |
| As defined by the FRU document |
|
|
|
Internal Use Area |
| Not required, do not reserve |
|
|
|
Chassis Info Area |
| Not applicable, do not reserve |
|
|
|
Board Info Area |
| Not applicable, do not reserve |
|
|
|
8.3.3.1Product Info Area
As defined by the IPMI FRU document. Product information shall be defined as follows:
Table 26: FRU Device Product Information Area
Field Name | Field Description |
Manufacturer Name | {Formal name of manufacturer} |
|
|
Product Name | {Manufacturer’s model number} |
|
|
Product part/model number | Customer part number |
|
|
Product Version | Customer current revision |
|
|
Product Serial Number | {Defined at time of manufacture} |
|
|
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