AC101L-DS05-R datasheet(25/54 Pages) BOARDCOM

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Preliminary Data Sheet

AC101L

8/9/04

B roa dcom Co rpo rat ion

Document

AC101L-DS06-R

TP PHY Register Summary

Page 15

1.13

100BASE-TX

Half-Duplex

1 = 100BASE-TX half-duplex capable.

0 = Not TX half-duplex capable.

Default value:

SPD100 && (ANEN || !DUPLEX).

See

description

1.12

10BASE-T

Full-Duplex

1 = 10BASE-T full-duplex capable.

0 = Not 10BASE-T full-duplex capable.

Default value:

DUPLEX && (ANEN || !SPD100).

See

description

1.11

10BASE-T

Half-Duplex

1 = 10BASE-T half-duplex capable.

0 = Not 10BASE-T half-duplex capable.

Default value:

ANEN || (!SPD100 && !DUPLEX).

See

description

1.[10:7]

Reserved

–

0000

1.6

MF Preamble

Suppression

The PHY is able to perform management transaction without MDIO

preamble. The management interface needs a minimum of 32 bits

of preamble after reset.

1.5

ANEN

Complete

1 = Auto-negotiation process completed. Registers 4, 5, and 6 are

valid after this bit is set.

0 = Auto-negotiation process is not completed.

1.4

Remote Fault

1 = Remote fault condition detected.

0 = No remote fault.

This bit remains set until it is cleared by reading register 1.

RO/LH

1.3

ANEN Ability

1 = Able to perform the auto-negotiation function; default value is

determined by the ANEN pin.

0 = Unable to perform the auto-negotiation function.

Set by

ANEN

1.2

Link Status

1 = Link is established. If the link fails, this bit clears and remains

at 0 until the register is read again.

0 = Link is down.

RO/LL

1.1

Jabber Detect

1 = Jabber condition detected.

0 = No Jabber condition detected.

RO/LH

1.0

Extended

Capability

1 = Extended register capable. This bit is tied permanently to a

value of 1.

Table 6: Register 1: Status Register (Cont.)

Bit

Name

Description

Mode

Default

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