317697-001 Ver la hoja de datos (PDF) - Intel

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Fabricante

317697-001

Gigabit Ethernet Controller

Intel 

82575 Gigabit Ethernet Controller Datasheet

3.8

3.9

Symbol

LED1_1

LED1_2

LED1_3

Type

Name and Function

LED1_1

O

Programmable LED output for Port B. As the Activity LED, it flashes to

indicate receive activity on Port B for packets destined for this node.

LED1_2

O

Programmable LED output for Port B. As the Link 100 LED, it indicates

link at 100 Mbps for Port B.

LED1_3

O

Programmable LED output for Port B. As the Link 1000 LED, it indicates

link at 1000 Mbps for Port B.

Other Signals

Symbol

SDP0_0

SDP0_1

SDP0_2

SDP0_3

SDP1_0

SDP1_1

SDP1_2

SDP1_3

Type

Name and Function

Software Defined Pin (SDP)

The Software Defined Pins are programmable with respect to input and

TS output capability. These pins also can optionally be configured as interrupt

inputs. SDP signals default to inputs upon power-up, but can be configured

differently by the EEPROM.

Crystal Signals

Symbol

XTAL1

XTAL2

Type

Name and Function

Crystal One

AI

The Crystal One pin is a 25 MHz input signal. It should be connected to a

parallel resonant crystal with a frequency tolerance of 30 ppm or better. The

other end of the crystal should be connected to XTAL2.

Crystal Two

AO Crystal Two is the output of an internal oscillator circuit used to drive a

crystal into oscillation.

14

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