5222-DS00-R datasheet(38/76 Pages) BOARDCOM

38 / 76 page

BCM5222

Preliminary Data Sheet

7/20/04

Broadcom Corporation

Page 26

Auto-Negotiation Next Page Register

Document 5222-DS02-405-R

NEXT PAGE ABLE

The BCM5222 returns 1 when bit 2 of the Auto-Negotiation Expansion register is read, indicating that it has next page

capabilities.

PAGE RECEIVED

Bit 1 of the Auto-Negotiation Expansion register is latched high when a new link code word is received from the link partner,

checked, and acknowledged. It remains high until the register is read, or until the chip is reset.

LINK PARTNER AUTO-NEGOTIATION ABLE

Bit 0 of the Auto-Negotiation Expansion register returns a 1 when the link partner is known to have auto-negotiation

capability. Before any auto-negotiation information is exchanged, or if the link partner does not comply with IEEE auto-

negotiation, the bit returns a value of 0.

AUTO-NEGOTIATION NEXT PAGE REGISTER

Indicates whether this is the last next page to be transmitted.

MESSAGE PAGE

Differentiates a Message Page from an Unformatted Page.

Table 13: Next Page Transmit Register (Address 07d, 07h)

Bit

Name

R/W

Description

Default

R/W

1 = Additional next page(s) will follow

0 = Last page

Reserved

R/W

Ignore when read

Message Page

R/W

1= Message page

0 = Unformatted page

Acknowledge 2

R/W

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

R/W

Note: 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).

5222-DS00-R Folha de dados(PDF) 38 Page - Broadcom Corporation.

5222-DS00-R Folha de dados(HTML) 38 Page - Broadcom Corporation.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

Folha de dados Download

Ligação URL