Data Sheet

System Manageability—Ethernet Controller I210
651
Figure 10-3 shows the I210 SMBus ARP flow.
Figure 10-3. SMBus ARP Flow
Power-Up reset
Set AV flag; Clear AR flag
Load SMB address from
EPROM
SMB packet
received
NO
SMB ARP
address
match
Yes
Prepare to
ARP ?
ACK the comamd and
clear AR flag
YES
Yes
Reset
device
ACK the comamd and
clear AR flag
YES
NO
Assign
Address
command
NO
UDID match NACK packet
ACK packet
Set slave address
Set AR flag.
YES NO
YES
YES AR flag set Return UDIDNO
NO
Illegal command
handling
NO
Process regular
command
NO
NACK packetYES
YES Return UDID
NO
Get UDID
command
general
Get UDID
command
directed