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Functional Description
ATCA-7475 Installation and Use (6806800S38D)
135
Following table shows available variants of the Intel DH8900CC PCH device:
5.21 SMBus
Intel DH8900CC PCH provides four SMBus interface, as described in the following table:
The Master SMBus interface of the Intel DH8900CC PCH is connected to onboard devices like
Clock PLLs, temperature sensors and so on. An I2C Bus Repeater of type PCA9515 is used for
load distribution and buffering.
Additionally both CPUs provide 2x SMBuses to connect to the SPD PROMs of the DDR3 memory
system. Two I2C Bus Level Translators of type PCA9517A are used for voltage level translation
to buffer the SMBus portion going to the SPD PROMs on the DIMM.
Table 5-4 Variants of the Intel DH8900CC PCH Device
Devices
Intel DH8900CC SKU1:
Entry Level
Intel DH89xxCC SKU2:
Entry Level
Intel DH89xxCC SKU3:
Mid Performance
Intel DH8920CC SKU4:
Max performance
Usage on
ATCA-7475
Carrier board:
I/O controller hub
4xMAC
Optional QuickAssist
engine with SKU2
Acceleration Module:
Data Processing with
QuickAssist Engines
Table 5-5 SMBus Interface
Device / SMBus
Description
Intel DH8900CC
B0:D31:F3
Host SMBus (Master/Slave)
SMLINK1
Connection to external BMC to report thermal information
GbE SMBus
Communication between BMC and Ethernet for Passthrough Mode
(SerialOverLan) (Master/Slave)
Endpoint SMBus
Allows access to any register in PCI space of Cavecreek as PCI endpoint
Summary of Contents for ATCA-7475
Page 1: ...ATCA 7475 Installation and Use P N 6806800S38D May 2014 ...
Page 24: ...ATCA 7475 Installation and Use 6806800S38D About this Manual 24 About this Manual ...
Page 34: ...ATCA 7475 Installation and Use 6806800S38D Sicherheitshinweise 34 ...
Page 42: ...Introduction ATCA 7475 Installation and Use 6806800S38D 42 ...
Page 64: ...Hardware Preparation and Installation ATCA 7475 Installation and Use 6806800S38D 64 ...
Page 80: ...Controls Indicators and Connectors ATCA 7475 Installation and Use 6806800S38D 80 ...
Page 138: ...Functional Description ATCA 7475 Installation and Use 6806800S38D 138 ...
Page 250: ...Supported IPMI Commands ATCA 7475 Installation and Use 6806800S38D 250 ...
Page 268: ...FRU Information and Sensor Data Records ATCA 7475 Installation and Use 6806800S38D 268 ...
Page 281: ......