AC208-DS03-R datasheet(33/58 Pages) BOARDCOM

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Preliminary Data Sheet

AC208

07/08/02

B roa dcom

Document

AC208-DS04-405-R

PHY Registers

Page 25

PHY IDENTIFIER 1 REGISTER

PHY IDENTIFIER 2 REGISTER

AUTO-NEGOTIATION ADVERTISEMENT REGISTER

Table 21: PHY Identifier 1 Register

Bit

Name

Description

Mode

Default

2.15:0

OUI*

Assigned to the third through eighteenth bits of the Organizationally

Unique Identifier (OUI).

0022

(HEX)

Table 22: PHY Identifier 2 Register

Bit

Name

Description

Mode

Default

3.15:10

OUI

Assigned to the nineteenth through twenty-fourth bits of the OUI.

010101

3.9:4

Model

Number

Six bit manufacturer’s model number; 101 is encoded as 010001.

010100

3.3:0

Revision

Number

Four bits manufacturer’s revision number. 0001 stands for Rev. A,

and so on.

0001

Table 23: Auto-Negotiation Advertisement Register

Bit

Name

Definition

Mode

Default

4.15

1 = Desire Next Page.

0 = Next Page is not desired.

4.14

Acknowledge

This bit is set internally after receiving three consecutive and

consistent FLP bursts.

4.13

Remote Fault

1 = Remote fault detected.

0 = No remote fault.

4.12:10

Reserved

For future technology.

000

4.9

100BASE-T4

Tied to 0 indicates no 100BASE-T4 support.

4.8

100BASE-TX

Full-duplex

1 = 100BASE-TX with full-duplex.

0 = No 100BASE-TX full-duplex ability.

4.7

100BASE-TX

1 = 100BASE-TX capable.

0 = No 100BASE-TX capability.

4.6

10BASE-T Full-

duplex

1 = 10 Mbps with full-duplex.

0 = No 10 Mbps with full-duplex capability.

4.5

10BASE-T

1 = 10 Mbps capable.

0 = No 10 Mbps capability.

4.4:0

Selector Field

[00001] = IEEE 802.3.

00001

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