LXT971ABC datasheet(75/90 Pages) INTEL

75 / 90 page

LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver

Datasheet

Document #: 249414

Revision #: 002

Rev. Date: August 7, 2002

Table 44. MII Status Register #1 (Address 1)

Bit

Name

Description

Type 1

Default

1.15

100BASE-T4

Not Supported

1 = PHY able to perform 100BASE-T4

0 = PHY not able to perform 100BASE-T4

1.14

100BASE-X Full-Duplex

1 = PHY able to perform full-duplex 100BASE-X

0 = PHY not able to perform full-duplex 100BASE-X

1.13

100BASE-X Half-Duplex

1 = PHY able to perform half-duplex 100BASE-X

0 = PHY not able to perform half-duplex 100BASE-X

1.12

10 Mbps Full-Duplex

1 = PHY able to operate at 10 Mbps in full-duplex

mode

0 = PHY not able to operate at 10 Mbps full-duplex

mode

1.11

10 Mbps Half-Duplex

1 = PHY able to operate at 10 Mbps in half-duplex

mode

0 = PHY not able to operate at 10 Mbps in half-

duplex

1.10

100BASE-T2 Full-

Duplex

Not Supported

1 = PHY able to perform full-duplex 100BASE-T2

0 = PHY not able to perform full-duplex 100BASE-T2

1.9

100BASE-T2 Half-

Duplex

Not Supported

1 = PHY able to perform half-duplex 100BASE-T2

0 = PHY not able to perform half-duplex 100BASE-

1.8

Extended Status

1 = Extended status information in register 15

0 = No extended status information in register 15

1.7

Reserved

1 = ignore when read

1.6

MF Preamble

Suppression

1 = PHY accepts management frames with

preamble suppressed

0 = PHY will not accept management frames with

preamble suppressed

1.5

Auto-Negotiation

complete

1 = Auto-negotiation complete

0 = Auto-negotiation not complete

1.4

Remote Fault

1 = Remote fault condition detected

0 = No remote fault condition detected

RO/LH

1.3

Auto-Negotiation Ability

1 = PHY is able to perform auto-negotiation

0 = PHY is not able to perform auto-negotiation

1.2

Link Status

1 = Link is up

0 = Link is down

RO/LL

1.1

Jabber Detect

1 = Jabber condition detected

0 = Jabber condition not detected

RO/LH

1.0

Extended Capability

1 = Extended register capabilities

0 = Basic register capabilities

1. RO = Read Only

LL = Latching Low

LH = Latching High

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