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零件编号 | 82580 | ||
描述 | Quad/Dual GbE LAN Controller | ||
制造商 | Intel | ||
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1 Page
Intel® 82580 Quad/Dual GbE LAN
Controller Specification Update
LAN Access Division (LAD)
322444-007EN
Revision 2.34
October 2010
Intel® 82580 Quad/Dual GbE LAN Controller
1.5.1
1. None.
Sightings
1.5.2 Specification Clarifications
1. EEPROM Required For Proper Operation of the 82580 Controller
Clarification: Problems identified in the PCIe logic were resolved by implementing workarounds in
EEPROM. Without these workarounds, the PCIe bus may not properly configure and the
possibility exists that the controller will not negotiate a PCIe connection. This leaves the
device inaccessible.
Workaround: Use an EEPROM with the workarounds (v3.22 or greater) to ensure proper device
configuration.
2. AC JTAG Junction Temperature Limit
Specification: IEEE 1149.6: A Boundary-Scan Standard for Advanced Digital Networks
Clarification: AC JTAG (IEEE 1149.6) is supported only up to a junction temperature of 70'C.
Workaround: None. This is a design parameter for the hardware.
3. Use of Wake on LAN Together with Manageability
Clarification: The Wakeup Filter Control Register (WUFC) contains the NoTCO bit, which affects the
behavior of the wakeup functionality when manageability is in use. Note that if
manageability is not enabled, the value of NoTCO has no effect.
When NoTCO contains the hardware default value of 0b, any received packet that
matches the wakeup filters will wake the system. This could cause unintended wakeups
in certain situations. For example, if Directed Exact Wakeup is used and the
manageability shares the host's MAC address, IPMI packets that are intended for the BMC
wakes the system, which might not be the intended behavior.
When NoTCO is set to 1b, any packet that passes the manageability filter, even if it also
is copied to the host, is excluded from the wakeup logic. This solves the previous
problem since IPMI packets do not wake the system. However, with NoTCO=1b,
broadcast packets, including broadcast magic packets, do not wake the system since they
pass the manageability filters and are therefore excluded.
Effects of NoTCO
Settings WoL
Magic Packet
Magic Packet
Magic Packet
Directed Exact
NoTCO
0b
1b
1b
0b
Shared MAC
Address
-
Y
N
Y
Unicast Packet
Broadcast Packet
OK OK
No wake
No wake
OK No wake
Wake even if MNG packet. No
way to talk to BMC without waking
host.
N/A
Intel® 82580 Quad/Dual GbE LAN Controller
Specification Update
8
322444-007EN
Revision 2.34
October 2010
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页数 | 14 页 | ||
下载 | [ 82580.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
82580 | Quad/Dual GbE LAN Controller | Intel |
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