OCPRF100 MP Server System Technical Product Specification
Revision 1.0
OCPRF100FPC Private I2C Bus DiagramFPC MPU
I2C
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I2C
I2C
I2C
Temp Monitor DS1621*
I2C Address: 90h / 91h
EEPROM (FRU) AT24C02*
I2C Address: A0h / A1h
Front Panel Board
I/O Expender PCF8574* |
| EEPROM (FRU) AT24C02 | ||
I2C Address: 40h /41h |
| I2C Address: A2h / A3h | ||
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I/O Expender PCF8574
I2C Address: 42h / 43h
Midplane Board
EEPROM (FRU) AT24C02
I2C Address: AAh / ABh
Inside
Power Supply 1
I2C |
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| EEPROM (FRU) AT24C02 |
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| I2C Address: ACh / ADh |
I2C
Inside
Power Supply 2
EEPROM (FRU) AT24C02
I2C Address: AEh / AFh
Inside
Power Supply 3
Figure 10-2: Devices Not Supporting Multimaster Mode10.2.12.2 Global I2C Bus
The global I2C bus is connected automatically to the IPMB whenever power is valid. This bus is used to allow communication between smart I2C devices that operate in multimaster mode. Spe-
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