82598EB Datasheet, PDF (443/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - SMBus Pass-Through Transactions
8
1
Data 12
A
UDID Byte 4
0
8
Data 13
UDID Byte 3
1
8
1
8
1
A
Data 14
A
Data 15
A

0
UDID Byte 2
0
UDID Byte 1
0
8
Data 16
UDID Byte 0 (LSB)
1
8
1
A
Data 17
A
0
Device Slave Address
0
8
PEC
[Data Dependent Value]
1
1
~Ã
P
1
The Get UDID command depends on whether or not this is a Directed or General command.
The General Get UDID SMBus transaction supports a constant command value of 0x03.
The Directed Get UDID SMBus transaction supports a Dynamic command value equal to the dynamic
SMBus address with the LSB bit set.
Note: Bit 0 (LSB) of Data byte 17 is always 1b.
5.3.10 SMBus Pass-Through Transactions
This section details all of the commands (both read and write) that 82598EB SMBus interface supports
for pass-through.
5.3.10.1 Write Transactions
This section details the commands that the BMC can send to 82598EB over the SMBus interface. SMBus
write transactions table lists the different SMBus write transactions supported by 82598EB.
TCO Command
Transmit Packet
Transmit Packet
Request Status
Receive Enable
Force TCO
Transaction
Block Write
Block Write
Block Write
Block Write
Block Write
Command
First: 0x84
Middle: 0x04
Last: 0x44
Single: 0xC4
Single: 0xDD
Single: 0xCA
Single: 0xCF
Fragmentation
Multiple
Section
5.3.10.1.1
Single
Single
Single
Single
5.3.10.1.1
5.3.10.1.2
5.3.10.1.3
5.3.10.1.4
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