ADLINK Hurricane-QM57 - Manual (Page 29)

TME-EPIC-HURQM-R2V9 Revision 2.9 Page 23 of 74
3.4
Gigabit Ethernet Controller
There are two Ethernet ports available on two standard ETH connectors. One Ethernet by 82577 (Hanksville)
with AMT support and the other by 82574L.
Intel 82577 Gigabit Ethernet PHY
The 82577 is a single port Gigabit Ethernet Physical Layer Transceiver (PHY). It connects to the Ibex Peak-M
chipset’s integrated Media Access Controller (MAC) through a dedicated interconnect. The 82577 supports
operation at 1000/100/10 Mb/s data rates. The PHY circuitry provides a standard IEEE 802.3 Ethernet interface
for 1000BASE-T, 100BASE-TX, and 10BASE-T applications (802.3, 802.3u, and 802.3ab).
The 82577 interfaces with its MAC through two interfaces: PCIe-based and SMBus. The PCIe (main) interface is
used for all link speeds when the system is in an active state (S0) while the SMBus is used only when the
system is in a low power state (Sx). In SMBus mode, the link speed is reduced to 10 Mb/s (dependent on low
power options). The PCIe interface incorporates two aspects: a PCIe SerDes (electrically) and a custom logic
protocol.
Intel 82574 Gigabit Ethernet PHY
The 82574L is a single, compact, low power component that offers a fully integrated Gigabit Ethernet Media
Access Control (MAC) and Physical Layer (PHY) port. The 82574 uses the PCI Express* (PCIe*) architecture and
provides a single-port implementation in a relatively small area so it can be used for server and client
configurations as a LAN on Motherboard (LOM) design. The 82574 family can also be used in embedded
applications such as switch add-on cards and network appliances.
Ethernet Connector (X8, X29)
Connector type: Würth Midcom int. Magnetics (7499111440)
Pin Signal Pin Signal
1
n.c.
2
MX1+
3 MX1- 4 MX2+
5 MX2- 6 MX3+
7
MX3-
8
MX4+
9 MX4- 10 VCT
11 Link_1000 12 Link_100
13 Link/Activity 14 +V3.3S