Network Interface Controller (Nic); Gige Controller 82574L; Gige Phy 82578Dm; Mac Address Definition - Intel S3420GPLC - Server Board Motherboard Specification

Intel® Server Board S3420GP TPS
3.8

Network Interface Controller (NIC)

®
The Intel Server Board S3420GPLX, S3420GPLC and S3420GPV support two network
interfaces, One is provided from the onboard Intel
the other is the onboard Intel
3.8.1

GigE Controller 82574L

The 82574 family (82574L and 82574IT) are single, compact, low-power components that offer
a fully-integrated Gigabit Ethernet Media Access Control (MAC) and Physical Layer (PHY) port.
The 82574 uses the PCI Express* 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.
External interfaces provided on the 82574:

PCIe Rev. 2.0 (2.5 GHz) x1

MDI (Copper) standard IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASETX,
and 10BASE-T applications (802.3, 802.3u, and 802.3ab)

NC-SI or SMBus connection to a Manageability Controller (MC)

EEE 1149.1 JTAG (note that BSDL testing is NOT supported)
3.8.2

GigE PHY 82578DM

The 82578 is a single port Gigabit Ethernet Physical Layer Transceiver (PHY). It connects to the
Media Access Controller (MAC) through a dedicated interconnect. The 82578DM 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 82578 operates with the Platform Controller Hub (PCH) chipset that incorporates the MAC.
The 82578 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. The PCIe interface incorporates two aspects: a PCIe SerDes
(electrically) and a custom logic protocol.
3.8.3

MAC Address Definition

®
Each Intel Server Board S3420GPLX has the following four MAC addresses assigned to it at
the Intel factory:
NIC 1 MAC address

NIC 2 MAC address – Assigned the NIC 1 MAC address +1

Integrated BMC LAN Channel MAC address – Assigned the NIC 1 MAC address +2

®
Intel Remote Management Module 3 (Intel

MAC address +3
®
Each Intel Server Board S3420GPLC has the following three MAC addresses assigned to it at
the Intel factory:
NIC 1 MAC address

NIC 2 MAC address – Assigned the NIC 1 MAC address +1

Revision 2.4
®
82578 Gigabit Network controller.
Intel order number E65697-010
®
82574L GbE PCI Express network controller;
®
RMM3) MAC address – Assigned the NIC 1
Functional Architecture
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