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3.4.5
Magnetics Modules for 82562GZ(GX) PLC Devices
A 5-core magnetics module should be carefully selected for specific designs.
suggested integrated magnetics modules for use with 82562GZ(GX) PLC devices. These modules
also contain integrated USB jacks.
Note: These components are pin-compatible with the magnetics modules listed in
82541PI(ER) controller.
Table 9.
3.5
Flash Interface
The ICHx does not support a Flash interface.
Note: The Intel Boot Agent is supported via the System BIOS.
3.6
Designing with 82541PI(ER) Gigabit Controllers
This section provides design guidelines specific to 82541PI(ER) Gigabit Ethernet Controllers.
3.6.1
82541PI(ER) Gigabit Controller LAN Disable Guidelines
The 82541PI(ER) controller has a LAN disable function that is present on FLSH_SO, ball P9. This
pin can be connected to a Super IO component to allow the BIOS to disable the Ethernet port (see
Figure
3). If the serial Flash interface is populated, the Flash serial output pin must not interfere
with this function.
Do not attempt to use the LAN_POWER_GOOD signal for a LAN disable input on the
82541PI(ER) controller. This pin is intended to operate as a power-on reset connected to a power
monitor circuit.
The input of the 82541PI(ER) FLSH_SO (pin P9) is the LAN_DISABLE# signal. It is sampled on
the rising edge of LAN_PWR_GOOD or RST#. The signal must be held valid for 80 ns after either
rising edge.
If it is sampled high, the LAN functions normally. If it is sampled low, then the following occurs:
1. The LAN is disabled.
2. The PHY is powered down.
Application Note (AP-468)
82541PI(ER) and 82562GZ(GX) Dual Footprint LOM Design Guide
Recommended Magnetics Modules
Manufacturer
Pulse
Pulse
Stewart Connector
Systems
Pulse
Part Number
H1138
Discrete
JWOA1P01R
Integrated
SI-70027
RJ-45/Magnetic
H1338 (MDI-X only)
Discrete
Table 9
lists
Table 13
for the
Type
15
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