5220-DS02-R datasheet(48/90 Pages) BOARDCOM

48 / 90 page

BCM5220

Preliminary Data Sheet

04/20/04

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

Page 36

Auto-Negotiation Link Partner (LP) Next Page Transmit Register

Document

5220-DS04-405-R

AUTO-NEGOTIATION LINK PARTNER (LP) NEXT PAGE TRANSMIT

Indicates whether this is the last next page.

Message Page

Differentiates a Message Page from an Unformatted Page.

Acknowledge 2

Indicates that link partner has the ability to comply with the message.

Toggle

Used by the Arbitration function to ensure synchronization with the link partner during next page exchange.

Message Code Field

An 11-bit-wide field encoding 2048 possible messages.

Unformatted Code Field

An 11-bit-wide field, which may contain an arbitrary value.

Table 16: Next Page Transmit Register (Address 08d, 08h)

Bit

Name

R/W

Description

Default

1 = Additional next page(s) will follow

0 = Last page

Reserveda

a. Preserve existing values of reserved bits by completing a “Read/Modify Write.”

Ignore when read

Message Page

1= Message page

0 = Unformatted page

Acknowledge 2

1 = Will comply with message

0 = Cannot comply with message

Toggle

1 = Previous value of the transmitted link code word

equalled logic zero

0 = Previous value of the transmitted link code word

equalled logic one

10:0

Message/Unformatted Code

Field

Notes: R/W = Read/Write, RO = Read only, SC = Self Clear, LL = Latched Low, LH = Latched High, LL & LH Clear after

read operation. Use default values of reserved bit(s) when writing to reserved bit(s).

5220-DS02-R 数据表(PDF) 48 Page - Broadcom Corporation.

5220-DS02-R 数据表(HTML) 48 Page - Broadcom Corporation.

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