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1.6
82562GZ(GX) Platform LAN Connect (PLC) Devices
®
Intel
82562GZ(GX) PLC devices use an I/O Control Hub (ICHx) that supports the PLC interface.
In these designs, an 82562GZ(GX) PLC device is used in place of an 82562EZ(EX) PLC device.
The 82562GZ(GX) is a 10/100 Mbps Ethernet device that uses Low Voltage Differential (LVD)
signals (3.3 V) to drive 100 meters of Category 5 (CAT5) cable for 100 Mbps operation and
Category 3 (CAT3) for 10 Mbps operation. The devices support a single interface to comply with
the IEEE 802.3 standard and are available in these packages:
•
82562GZ, a 196-pin Ball Grid Array (BGA), available in lead and lead-free versions, that
replaces the 82562EZ.
•
82562GX, a 196-pin BGA, available in lead and lead-free versions, that has manageability
support and replaces the 82562EX.
1.6.1
Usage Modes
This section describes the five usage modes for 82562GZ(GX) devices.
1.6.1.1
Mode 0: Drop-in Replacement
Mode 0 is a drop-in replacement for a similar 82562EZ(EX) device without any required software
or hardware modifications. 82562EZ(EX) product collateral can be used to design for this usage
mode.
Table 2
Table 2. Drop-in Replacement Mode
82562E
82562EZ
82562EX
Note: For this mode, some BOM component values can be changed to improve performance using
82562GZ(GX) devices without changing the layout of a board designed for 82562EZ(EX) devices.
For example, transmit and receive termination resistors as well as RBIAS10 and RBIAS100
resistor values.
1.6.1.2
Modes 1, 2, 3, and 4: New Features
82562GZ(GX) products support several new features that offer design flexibility and reduced
BOM cost compared to 82562EZ(EX) devices. To implement these new features, the board design
must include the proper pull-up and/or pull-down strapping resistor options that are used to change
modes of operation (refer to
Application Note (AP-468)
82541PI(ER) and 82562GZ(GX) Dual Footprint LOM Design Guide
lists the appropriate replacement choices for the 82562EZ(EX) devices:
82562G
82562GZ
82562GX
Table
3).
Description
196-pin BGA
196-pin BGA with Alert on LAN (AoL) and ASF 1.0
support
3
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