GD82559 Intel, GD82559 Datasheet - Page 19

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GD82559

Manufacturer Part Number
GD82559
Description
Manufacturer
Intel
Datasheet

Specifications of GD82559

Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Industrial
Mounting
Through Hole
Lead Free Status / Rohs Status
Not Compliant

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5.6
5.7
5.7.1
Application Note
PCI
The ICH provides a PCI bus interface that is compliant with the PCI Local Bus Specification,
Revision 2.2. The implementation is optimized for high-performance data streaming when the ICH
is acting as either the target or the initiator on the PCI bus. For more information on the PCI Bus
interface, please refer to the PCI Local Bus Specification, Revision 2.2. The 82801AA ICH
supports 6 PCI bus masters (excluding ICH), by providing 6 REQ#/GNT# pairs. The PCI network
controller (GD82559) is integrated on board; therefore, an extra PCI slot is expandable for a PCI
network broadcasting card (if implemented).
Network Controller — Intel
The 82559 10/100 Mbps Fast Ethernet controller with an integrated 10/100 Mbps physical layer
device is Intel’s leading solution for PCI board LAN designs. It is designed for use in Network
Interface Cards (NICs), PC LAN On Motherboard (LOM) designs, embedded systems, and
networking system products. The 82559 combines a low power and small package design which is
ideal for power- and space-constrained environments. It is compliant with Advanced Configuration
and Power Interface (ACPI) 1.20A-based power management and with the Wired for Management
(WfM) 2.0 Baseline specification.
The 82559 is an integrated IEEE 802.3 10BASE-T and 100BASE-TX compatible PHY. It provides
a glueless 32-bit PCI master interface and supports a 128 Kbyte Flash interface. The package is a
thin BGA with a small footprint (15 mm X 15 mm).
The 82559 supports the Intel Preboot Execution Environment (PXE) driver, which allows a new or
existing system to boot over the network and download software or an image, including the
operating system, stored on a server. The 82559 provides for operating system independent
network booting, automating the setting up and configuration of new systems. If the operating
system or applications software is damaged, the system can be recovered by downloading the
original image from server again, reducing the total cost of maintenance.
Design Note for the
The differential transmit signal pair (TDP/TDN) is terminated with a 100 W (1%) resistor, and the
differential receive signal pair (RDP/RDN) is terminated with a 120 W (1%) resistor. These
termination resistors should be placed as close to the PHY as possible. These resistors terminate the
entire impedance seen at the termination source (for example, the PHY), including the wire
impedance reflected through the transformer.
resistors.
Intel-Based Electronic Classroom Student Computing Station
Intel
®
82559 Fast Ethernet Controller
®
Figure 4
82559 Fast Ethernet Controller
depicts the placement of the termination
19

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