VSC8504-02 datasheet(37/131 Pages) MICROSEMI

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Functional Descriptions

VMDS-10507 VSC8504-02 Datasheet Revision 4.2

The following table provides a summary of the LED modes and functions.

Table 7 •

LED Mode and Function Summary

Mode Function Name

LED State and Description

Link/Activity

1: No link in any speed on any media interface.

0: Valid link at any speed on any media interface.

Blink or pulse-stretch = Valid link at any speed on any media

interface with activity present.

Link1000/Activity

1: No link in 1000BASE-T or 1000BASE-X.

0: Valid 1000BASE-T or 1000BASE-X.

Blink or pulse-stretch = Valid 1000BASE-T or 1000BASE-X

link with activity present.

Link100/Activity

1: No link in 100BASE-TX or 100BASE-FX.

0: Valid 100BASE-TX or 100BASE-FX.

Blink or pulse-stretch = Valid 100BASE-TX or 100BASE-FX

link with activity present.

Link10/Activity

1: No link in 10BASE-T.

0: Valid 10BASE-T link.

Blink or pulse-stretch = Valid 10BASE-T link with activity

present.

Link100/1000/Activity

1: No link in 100BASE-TX, 100BASE-FX, 1000BASE-X, or

1000BASE-T.

0: Valid 100BASE-TX, 100BASE-FX, 1000BASE-X, or

1000BASE-T link. Blink or pulse-stretch = Valid 100BASE-TX,

100BASE-FX, 1000BASE-X, or 1000BASE-T link with activity

present.

Link10/1000/Activity

1: No link in 10BASE-T, 1000BASE-X, or 1000BASE-T.

0: Valid 10BASE-T, 1000BASE-X, or 1000BASE-T link.

Blink or pulse-stretch = Valid 10BASE-T, 1000BASE-X, or

1000BASE-T link with activity present.

Link10/100/Activity

1: No link in 10BASE-T, 100BASE-FX, or 100BASE-TX.

0: Valid 10BASE-T, 100BASE-FX, or 100BASE-TX link.

Blink or pulse-stretch = Valid 10BASE-T, 100BASE-FX, or

100BASE-TX link with activity present.

Link100BASE-FX/1000BAS

E-X/Activity

1: No link in 100BASE-FX or 1000BASE-X.

0: Valid 100BASE-FX or 1000BASE-X link.

Blink or pulse-stretch = Valid 100BASE-FX or 1000BASE-X

link with activity present.

Duplex/Collision

1: Link established in half-duplex mode, or no link established.

0: Link established in full-duplex mode.

Blink or pulse-stretch = Link established in half-duplex mode

but collisions are present.

Collision

1: No collision detected.

Blink or pulse-stretch = Collision detected.

Activity

1: No activity present.

Blink or pulse-stretch = Activity present (becomes TX activity

present when register bit 30.14 is set to 1).

100BASE-FX/1000BASE-X

Fiber Activity

1: No 100BASE-FX or 1000BASE-X activity present.

Blink or pulse-stretch = 100BASE-FX or 1000BASE-X activity

present (becomes RX activity present when register bit 30.14

is set to 1).

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