Power Management Support; Nic Programming - HP Compaq d330 DT Technical Reference Manual

Chapter 5 Input/Output Interfaces

5.9.3 POWER MANAGEMENT SUPPORT

The NIC features Wired-for-Management (WfM) support providing system wake up from
network events (WOL) as well as generating system status messages (AOL) and supports ACPI
power management environments. The controller receives 3.3 VDC (auxiliary) power as long as
the system is plugged into a live AC receptacle, allowing support of wake-up events occurring
over a network while the system is powered down or in a low-power state.
The Advanced Configuration and Power Interface (ACPI) functionality of system wake up is
implemented through an ACPI-compliant OS and is the default power management mode. The
following wakeup events may be individually enabled/disabled through the supplied software
driver:
♦ Magic Packet – Packet with node address repeated 16 times in data portion
NOTE: The following functions are supported in NDIS5 drivers but implemented
through remote management software applications (such as LanDesk).
♦ Individual address match – Packet with matching user-defined byte mask
♦ Multicast address match – Packet with matching user-defined sample frame
♦ ARP (address resolution protocol) packet
♦ Flexible packet filtering – Packets that match defined CRC signature
The PROSet Application software (pre-installed and accessed through the System Tray or
Windows Control Panel) allows configuration of operational parameters such as WOL and duplex
mode.

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.
5-36 hp compaq d330 and d530 Series of Personal Computers
Featuring the Intel Pentium 4 Processor
First Edition – June 2003