SMART Embedded Computing Centellis 2x00 User Card-10GE, Installation And Use Manual

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30 Centellis 2x00 User Card-10GE Installation and Use (6806800H33E)
Centellis 2x00 User Card-10GE Hardware
Centellis 2x00 User Card-10GE Hardware
2.2 Payload Hardware
The payload hardware of the Centellis 2000 User Card-10GE is always powered when
power supply is present.
The following interfaces are available:
 Fabric 2 ethernet interface to payload slot
 SFP+ 10GE ethernet interface resident on the front panel
2.2.1 Ethernet Interfaces
The Ethernet interfaces on the Centellis 2x00 User Card-10GE interface between the
10GBASE-BX4 Ethernet (XAUI) coming from the backplane fabric channel 1 and the
10GBASE-LRM Ethernet of the SFP+ module located on the front panel. The board uses
an BCM8706 transceiver to support uplink functionality from the payload blade.
2.3 IPMC Controller
The IPMC Controller is derived from SMART EC's IPMC building block and it consists of
two coupled micro controllers:
 IPMC Master Controller (IMC) based on an Atmega 256
 IPMC Slave Controller (ISC), based on an Atmega 168
2.3.1 IPMB0 Interface
IPMB0-A is connected to the I
2
C controller of the IMC, IPMB0-B to the I
2
C controller of the
ISC. Both micro controllers have their own I
2
C controller and handle message transmission
and reception independently, including bus error handling and bus arbitration.
Received messages sent to both the IMC and the ISC channels are collected by the IMC.
The IMC dispatches messages which have to be sent either to its own I
2
C interface or to
the ISC for transmission.
2.3.2 IPMC Standard Functions
The standard functionality of the SMART EC IPMC is available on the IPMC of the Centellis
2x00 User Card-10GE. For detailed information, see the Centellis 2x00 User Card-10GE:
Control via IPMI Programmer’s Reference .