Intel® Server Boards SE7320SP2 and SE7525GP2
Platform Management
Revision 4.0
103
5.2.3.1
Private Management I
2
C Buses
The mBMC implements a single private management bus. The mBMC is the sole master on this
bus. External agents must use the mBMC
Master Write/Read I
2
C
command if they require direct
communication with a device on this bus. In addition, the mBMC provides a
Reserve Device
command that gives an external agent exclusive access to a specific device for a selectable
time.
5.2.4 Messaging
Interfaces
This section describes the supported mBMC communication interfaces:
Host SMS interface via SMBus interface
LAN interface using the LAN On Motherboard SMBus
5.2.4.1 Channel
Management
The mBMC supports two channels:
System interface
802.3 LAN
Table 48. Supported Channel Assigments
Channel Id
Media type
Interface
Supports
Sessions
1
802.3 LAN
IPMB 1.0
Multi sessions
2 System
Interface
IPMI-SMBus
Session-less
5.2.4.2 User
Model
The mBMC supports one anonymous user (null user name) with a settable password. The IPMI
command to set the password is supported.
5.2.4.3 Request/Response
Protocol
All of the protocols used in the host interface and the LOM interface are Request/Response
protocols. A Request Message is issued to an intelligent device, to which the device responds
with a separate Response Message.
Summary of Contents for SE7320SP2 - 800MHZ Ecc Ddr Xeon
Page 182: ......