Technical Reference Guide www.hp.com 5-35
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.
Figure 5 14. RJ-45 Ethernet TPE Connector (as viewed from rear of chassis)
124 38 7 6 5
Pin
Description
1 Transmit+
2 Transmit-
3 Receive+
6 Receive-
Activity LED
Speed LED
4, 7, 8
Not used
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