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 Broadcom BCM5782 is configured as a PCI device and controlled through registers mapped in variable I/O space. The BIOS for the BCM5782 is contained within the HP/Compaq BIOS in system ROM. Refer to Broadcom documentation for details regarding BCM5782 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 15. Ethernet TPE Connector (RJ-45, viewed from card edge)

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Technical Reference Guide