Compaq DC7600 HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 116

Network Interface Controller, Power management support for ACPI 1.1, PXE 2.0, WOL, ASF 1.0, IPMI - network driver

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Input/Output Interfaces 5.9 Network Interface Controller These systems provide 10/100/1000 Mbps network support through a Broadcom BCM5752 network interface controller (NIC), a PHY component, and a RJ-45 jack with integral status LEDs. The 82562-equivalent controller integrated into the 82801 ICH component is not used (disabled) in these systems. (Figure 5-14). The support firmware for the BCM5752 component is contained in the system (BIOS) ROM. The NIC can operate in half- or full-duplex modes, and provides auto-negotiation of both mode and speed. Half-duplex operation features an Intel-proprietary collision reduction mechanism while full-duplex operation follows the IEEE 802.3x flow control specification. Green LED RJ-45 Connector Broadcom BCM5752 NIC Tx/Rx Data LAN I/F Tx/Rx Data Yellow LED LED Green Yellow Function Activity/Li nk. Indicates network activity and link pulse reception. Speed. Indicates link detection 100Mb/s mode. Figure 5 14. Network Interface Controller Block Diagram The Network Interface Controller includes the following features: ■ VLAN tagging with Windows 2000/XP, and Linux. ■ Multiple VLAN support with Windows 2000/XP. ■ Power management support for ACPI 1.1, PXE 2.0, WOL, ASF 1.0, IPMI ■ Cisco Etherchannel support ■ Link and Activity LED indicator drivers The controller features high and low priority queues and provides priority-packet processing for networks that can support that feature. The controller's micro-machine processes transmit and receive frames independently and concurrently. Receive runt (under-sized) frames are not passed on as faulty data but discarded by the controller, which also directly handles such errors as collision detection or data under-run. The NIC uses 3.3 VDC auxiliary power, which allows the controller to support Wake-On-LAN (WOL) and Alert-On-LAN (AOL) functions while the main system is powered down. ✎ For the features in the following paragraphs to function as described, the system unit must be plugged into a live AC outlet. Controlling unit power through a switchable power strip will, with the strip turned off, disable any wake, alert, or power mangement functionality. 5-36 www.hp.com Technical Reference Guide

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5-36
www.hp.com
Technical Reference Guide
Input/Output Interfaces
5.9 Network Interface Controller
These systems provide 10/100/1000 Mbps network support through a Broadcom BCM5752
network interface controller (NIC), a PHY component, and a RJ-45 jack with integral status
LEDs. The 82562-equivalent controller integrated into the 82801 ICH component is not used
(disabled) in these systems.
(Figure 5-14). The support firmware for the BCM5752 component
is contained in the system (BIOS) ROM.
The NIC can operate in half- or full-duplex modes, and
provides auto-negotiation of both mode and speed. Half-duplex operation features an
Intel-proprietary collision reduction mechanism while full-duplex operation follows the IEEE
802.3x flow control specification.
Figure 5 14.
Network Interface Controller Block Diagram
The Network Interface Controller includes the following features:
■
VLAN tagging with Windows 2000/XP, and Linux.
■
Multiple VLAN support with Windows 2000/XP.
■
Power management support for ACPI 1.1, PXE 2.0, WOL, ASF 1.0, IPMI
■
Cisco Etherchannel support
■
Link and Activity LED indicator drivers
The controller features high and low priority queues and provides priority-packet processing for
networks that can support that feature. The controller's micro-machine processes transmit and
receive frames independently and concurrently. Receive runt (under-sized) frames are not passed
on as faulty data but discarded by the controller, which also directly handles such errors as
collision detection or data under-run.
The NIC uses 3.3 VDC auxiliary power, which allows the controller to support Wake-On-LAN
(WOL) and Alert-On-LAN (AOL) functions while the main system is powered down.
✎
For the features in the following paragraphs to function as described, the system unit must be
plugged into a live AC outlet. Controlling unit power through a switchable power strip will, with
the strip turned off, disable any wake, alert, or power mangement functionality.
Broadcom
LAN I/F
Green LED
NIC
BCM5752
RJ-45
Connector
Yellow LED
Tx/Rx Data
Tx/Rx Data
LED
Function
Green
Yellow
Activity/Li nk. Indicates network activity and link pulse reception.
Speed. Indicates link detection 100Mb/s mode.