LAN89218 datasheet(117/148 Pages) MICROCHIP

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 2008-2015 Microchip Technology Inc.

DS60001255B-page 117

LAN89218

5.5.7

AUTO-NEGOTIATION EXPANSION

5.5.8

MODE CONTROL/STATUS

Note 1:

The default value of this bit will vary dependent on the current link state of the line.

Index (In Decimal):

Size:

16-bits

Bits

Description

Type

Default

15:5

Reserved

Parallel Detection Fault.

1 = fault detected by parallel detection logic

0 = no fault detected by parallel detection logic

RO/LH

Link Partner Next Page Able.

1 = link partner has next page ability

0 = link partner does not have next page ability

Next Page Able.

1 = local device has next page ability

0 = local device does not have next page ability

Page Received.

1 = new page received

0 = new page not yet received

RO/LH

Link Partner Auto-Negotiation Able.

1 = link partner has auto-negotiation ability

0 = link partner does not have auto-negotiation ability

Index (In Decimal):

Size:

16-bits

Bits

Description

Type

Default

15:14

Reserved. Write as 0; ignore on read.

EDPWRDOWN. Enable the Energy Detect Power-Down mode:

0 = Energy Detect Power-Down is disabled

1 = Energy Detect Power-Down is enabled

12:2

Reserved. Write as 0, ignore on read

ENERGYON. Indicates whether energy is detected. This bit goes to a “0” if no

valid energy is detected within 256 ms. Reset to “1” by hardware reset, unaf-

fected by SW reset.

See Note 1

Reserved. Write as “0”. Ignore on read.

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