AC206-DS05-405-R datasheet(31/70 Pages) BOARDCOM

31 / 70 page

Preliminary Data Sheet

AC206

07/08/02

B roa dcom

Document

AC206-DS05-405-R

Page 19

Section 3 : R egis ter De scr iptions

The following standard registers are supported. (Register numbers are in Decimal format, the values are in Hex format).

The following table lists the AC206 register sets. Each register contains 16-bit data. The addresses in the following table are

hexadecimal.

Note

When writing to registers, it is recommended that a read/modify/write operation be performed, as

unintended bits may get set to unwanted states. This applies to all registers, including those with reserved

bits.

Table 17: Register Set

PHY Addr

Definition

Type

Default

0–31

PHY 1 Registers

PHY Control Register

R/W

3000

PHY Status Register

2849

PHY Identifier 1 Register

0022

PHY Identifier 2 Register

5541

Auto-Negotiation Advertisement Register

00A1

Auto-Negotiation Link Partner Ability Register

0001

Auto-Negotiation Expansion Register

0004

Auto Negotiation Next Page Transmit Register

2001

8–15

Reserved

0000

PHY 10BASE-T Control Register

R/W

PHY Interrupt Control/Status Register

Diagnostic Register

Test Register

Cable Length Register

Receive Error Count

Power Management Register

Transceiver Mode Register

24–31

Reserved

0–31

PHY 2 Registers

0–31

PHY 3 Registers

0–31

PHY 4 Registers

0–31

PHY 5 Registers

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