5228-DS09-405-R datasheet(66/100 Pages) BOARDCOM

66 / 100 page

BCM5228

Data Sheet

7/12/04

Broa d c om Co rp o r a t i o n

Page 54

Auxiliary Status Summary Register

Document

5228-DS09-405-R

AUXILIARY STATUS SUMMARY REGISTER

This register contains copies of redundant status bits found elsewhere within the MII register space.

Descriptions for each of these individual bits can be found associated with their primary register descriptions.

Table 33: Auxiliary Status Summary Register (Address 25d, 19h)

Bit

Name

R/W

Description

Default

Auto-Negotiation Complete

1 = Auto-negotiation process completed

Auto-Negotiation Complete

Acknowledge

1 = Auto-negotiation completed acknowledge state

Auto-Negotiation

Acknowledge Detected

1 = Auto-negotiation acknowledge detected

Auto-Negotiation Ability

Detect

1 = Auto-negotiation for link partner ability

Auto-Negotiation Pause

BCM5228 and link partner pause operation bit set

10:8

Auto-Negotiation HCD

000 = No highest common denominator

001 = 10BASE-T

010 = 10BASE-T full-duplex

011 = 100BASE-TX

100 = 100BASE-T4

101 = 100BASE-TX full-duplex

11x = Undefined

000

Auto-Negotiation Parallel

Detection Fault

1 = Parallel detection fault

Link Partner Remote Fault

1 = Link partner has signalled a far-end fault

condition in

FX mode

Link Partner Page Received

1 = New page has been received

Link Partner Auto-

Negotiation Able

1 = Link partner is auto-negotiation capable

Speed Indicator

1 = 100 Mbps

0 = 10 Mbps

2Link Status

1 = Link is up (link pass state)

Auto-Negotiation Enabled

1 = Auto-negotiation enabled

Full-Duplex Indication

1 = Full-duplex active

0 = Full-duplex not active

Note: R/W = Read/Write, RO = Read Only, SC = Self Clear, LL = Latched Low, LH = Latched High, LL and LH Clear

after read operation.

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