317697-001 Ver la hoja de datos (PDF) - Intel
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317697-001 Datasheet PDF : 69 Pages
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82575 Gigabit Ethernet Controller Datasheet
3.3
Symbol
PET_0_N
PET_0_P
PET_1_N
PET_1_P
PET_2_N
PET_2_P
PET_3_N
PET_3_P
PE_RCOMP
PE_CLK_P
PE_CLK_N
PE_RST_N
PE_WAKE_N
Type
Name and Function
A(0)
High Speed Serial Transmit Data
These signals connect to corresponding PERn and PERp signals on a
system motherboard or a PCI Express connector. Series AC coupling
capacitors are required at the 82575 controller end. The PCI Express
differential outputs are clocked at 2.5 Gb/s.
High Speed Serial Impedance Compensation
A
Connect the recommended resistor value 1.4K Ω from this ball to
ground.
100 MHz Differential Clock for the PCI Express Interface
A
The reference clock is furnished by the system and has a 300 ppm
frequency tolerance.
PCI Express Reset
When the signal is low, all PCI Express functions are held in reset.
I
When the signal is high, it denotes that main power is available to the
82575 controller and the reference clock is running.
In systems with a PCI Express add-in card, this signal routes to the
connector.
Wake
The device drives this signal low when it receives a wake-up event and
OD either the PME Enable bit in the Power Management Control/Status
Register or the Advanced Power Management Enable (APME) bit of the
Wake-up Control Register (WUC) is 1b.
Power Management Signals
Symbol
AUX_PWR
LAN0_DIS_N
LAN1_DIS_N
DEV_OFF_N
MAIN_PWR_OK
Type
Name and Function
Auxiliary Power Present.
I
If the Auxiliary Power signal is high, then auxiliary power is present
and the 82575device should support the D3cold power state.
LAN Disables 0 and 1
I
Disables individual Ethernet ports. State is latched upon a rising edge
of PERST_N or a PCI Express reset event. This pin has an internal
pull-up resistor.
Device Off
I
Asynchronously disables Ethernet controller.
Main Power OK
I
Indicates that platform main power is up. Must be connected
externally.
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