Input/Output Interfaces

5.9.4 NIC Programming

Programming the NIC consists of configuration, which occurs during POST, and control, which occurs at runtime. The Intel 82566 NIC is configured as a PCI device and controlled through registers mapped in variable I/O space. The BIOS for theNIC is contained within the HP/Compaq BIOS in system ROM. Refer to Intel documentation for details regarding 82566 register programming.

5.9.5 NIC Connector

Figure 5-14 shows the RJ-45 connector used for the NIC interface. This connector includes the two status LEDs as part of the connector assembly.

Speed LED

Activity LED

 

Pin

Description

 

1

Transmit+

 

2

Transmit-

 

3

Receive+

 

6

Receive-

 

4, 7, 8

Not used

8

7 6 5 4 3 2 1

 

Figure 5 14. RJ-45 Ethernet TPE Connector (as viewed from rear of chassis)

 

Technical Reference Guide

www.hp.com

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