Artesyn ATCA-7365-CE Installation and Use (May 2014) - Manual (Page 151)

Functional Description
ATCA-7365-CE Installation and Use (6806800L73J) 151
5.17 SMBus Interface
The SMBus interface of the ICH10R is connected to on-board devices like Clock PLL’s,
temperature sensors and the SPD PROMs of all twelve DDR3 DIMM memory modules. I
2 C Bus
Repeater of type PCA9515 is used to buffer the SMBus portion going to the SPD PROMs on the
DIMM. The BIOS reads memory configuration parameters from SPD PROM. To address more
than 8 memory I2C devices the SMBus to the SPD PROMS is segmented.
Table 5-2 SMBus Devices
Device Name Device Type Address
SPD EEPROM 24C02 1010.000x b=A0
SPD EEPROM 24C02 1010.001x b=A2
SPD EEPROM 24C02 1010.010x b=A4
SPD EEPROM 24C02 1010.011x b=A6
SPD EEPROM 24C02 1010.100x b=A8
SPD EEPROM 24C02 1010.101x b=AA
SPD EEPROM 24C02 1010.000x b=A0
SPD EEPROM 24C02 1010.001x b=A2
SPD EEPROM 24C02 1010.010x b=A4
SPD EEPROM 24C02 1010.011x b=A6
SPD EEPROM 24C02 1010.100x b=A8
SPD EEPROM 24C02 1010.101x b=AA
Temp Sens#0 LM75 0x90
Temp Sens#1 LM75 0x92
DDR3 VREF_D margening ISL90728 0x7C
DDR3 VREF_D margening ISL90727 0x5C
Clock ICS932S421 0xD2 + 0xD3
DB1200 clock ICS9DB1200 0xDC + 0xDD
CK_MNG_133 ICS9FGP202 0xD0 + 0xD1
ICH10R Slave SMBus IF ICH10R 0x88 + 0x89