Artesyn ATCA-7480 Installation and Use (February 2015) - Manual (Page 89)

Functional Description
ATCA-7480 Installation and Use (6806800T17A) 89
4.10.1 I2C Bus
ATCA-7480 contains the IPMC controller Master-Only I2C Bus. It is also called as Private I2C Bus,
which is connected to a FRU EEPROM, temperature sensors, and monitoring logic of the PIM.
Figure 4-2 Master Only I2C Bus Architecture
SEL A2h
PCA9557 38h
PCA9555 4Ah
PCA9555 48h
Fab#2
ADT7461-2
9Ah (4D)
Fab#1
ADT7461
98h (4C)
FRU A0h
FPGA 5Eh
SOL-I2C MO-I2C
IPMB-L1
IPMB-L2
AMC#1=RTM
IPMB-L3
AMC#1
A2F200
I350
PowerVille