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