Intel D865GRH D865GRH_TechProdSpec. - Page 45

LAN Subsystem - lan driver

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Product Description 1.10 LAN Subsystem The Gigabit (10/100/1000 Mbits/sec) LAN subsystem includes the GMCH (with its CSA interface), the Intel 82547EI PLC, and an RJ-45 LAN connector with integrated status LEDs. Additional features of the LAN subsystem include: • PCI bus master interface • CSMA/CD protocol engine • 8-bit CSA port interface that supports the 82547EI • PCI power management  Supports ACPI technology  Supports LAN wake capabilities 1.10.1 Intel® 82547EI Platform LAN Connect Device Intel 82547EI provides the following functions: • Basic 10/100/1000 Ethernet LAN connectivity • Communication Streaming Architecture (CSA) port provides higher throughput and lower latencies than the Intel® 82562EZ device, resulting in up to 30% higher bus throughput (up to wirespeed) • Full device driver compatibility • Programmable transit threshold • Configuration EEPROM that contains the MAC address 1.10.2 RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (as shown in Figure 12). Table 12 describes the LED states when the board is powered up and the Gigabit LAN subsystem is operating. Green LED Green/Yellow LED OM16513 Figure 12. LAN Connector LED Locations Table 12. LAN Connector LED States LED Left Color Green LED State Off On Blinking N/A Off Right Green On Yellow On Condition LAN link is not established. LAN link is established. LAN activity is occurring. 10 Mbits/sec data rate is selected. 100 Mbits/sec data rate is selected. 1000 Mbits/sec data rate is selected. 45

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Product Description
45
1.10 LAN Subsystem
The Gigabit (10/100/1000 Mbits/sec) LAN subsystem includes the GMCH (with its CSA
interface), the Intel 82547EI PLC, and an RJ-45 LAN connector with integrated status LEDs.
Additional features of the LAN subsystem include:
PCI bus master interface
CSMA/CD protocol engine
8-bit CSA port interface that supports the 82547EI
PCI power management
Supports ACPI technology
Supports LAN wake capabilities
1.10.1
Intel
®
82547EI Platform LAN Connect Device
Intel 82547EI provides the following functions:
Basic 10/100/1000 Ethernet LAN connectivity
Communication Streaming Architecture (CSA) port provides higher throughput and lower
latencies than the Intel
®
82562EZ device, resulting in up to 30% higher bus throughput (up to
wirespeed)
Full device driver compatibility
Programmable transit threshold
Configuration EEPROM that contains the MAC address
1.10.2
RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector (as shown in Figure 12).
Table 12 describes
the LED states when the board is powered up and the Gigabit LAN subsystem is operating.
Green LED
Green/Yellow LED
OM16513
Figure 12.
LAN Connector LED Locations
Table 12.
LAN Connector LED States
LED
Color
LED State
Condition
Off
LAN link is not established.
On
LAN link is established.
Left
Green
Blinking
LAN activity is occurring.
N/A
Off
10 Mbits/sec data rate is selected.
Green
On
100 Mbits/sec data rate is selected.
Right
Yellow
On
1000 Mbits/sec data rate is selected.