
S875WP1-E TPS
Functional Architecture
Revision 4.0
33
3.9 Network Interface Controller (NIC) Subsystem
The Intel Server Board S875WP1-E supports two Network Interface Controllers (NICs), one that
runs at 10/100Mb and is based on the Intel 82562ET NIC and the other that runs at one gigabit
and is based on the Intel 82547EI NIC. When looking at the rear of the chassis, the gigabit NIC
is at the left (closest to the video port) and the 10/100Mb NIC is at the right. The Intel Server
Board S875WP1-E supports independent disabling of the two NIC controllers using the BIOS
Setup menu.
The NIC subsystem consists of the following:
36
Intel 82801ER ICH5-R device with an integrated LAN Media Access Controller (MAC)
37
Intel 82547EI Platform LAN Connect (PLC) device for 10/100/1000 Mbits/sec Ethernet
LAN connectivity
•
RJ-45 LAN connector with integrated status LEDs
The 82562ET is controlled by the ICH5 and supports the following features:
38
Integrated IEEE 802.3 10Base-T and 100Base-TX compatible PHY
39
IEEE 802.3u auto-negotiation support
40
Full duplex support at both 10 Mbps and 100 Mbps operation
41
Low power +3.3 V device with reduced power in unplugged mode and automatic
detection of unplugged mode
•
3-port LED support
The 82547EI is controlled by the CSA interface off of the MCH and supports the following
features:
42
Basic 10/100/1000 Ethernet LAN connectivity
43
Integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY)
44 IEEE
802.3
10BASE-T/100BASE-TX/1000BASE-T compliant physical layer interface
45
IEEE 802.3ab Auto-Negotiation support
46
Low power (less than 350mW in active transmit mode)
47
Reduced power in “unplugged mode” (less than 50mW)
48
Automatic detection of “unplugged mode”
49
Communication Streaming Architecture (CSA) port provides higher throughput and lower
latencies resulting in up to 30% higher bus throughput (up to wire speed)
50
Full device driver compatibility
51
Programmable transit threshold
52
Configuration EEPROM that contains the MAC address
•
Teaming and Fail over support