RTL8100 Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Lista de partido

RTL8100

REALTEK 3.3V SINGLE CHIP FAST ETHERNET CONTROLLER WITH POWER MANAGEMENT

Unspecified 

RTL8100B(L)

5.21 Auto-Negotiation Link Partner Ability Register

(Offset 0068h-0069h, R)

This register contains the advertised abilities of the Link Partner as received during Auto-negotiation. The content changes after

the successful Auto-negotiation if Next-pages are supported.

Bit

15

14

13

12-11

10

9

8

7

6

5

4-0

Name

NP

ACK

RF

-

Pause

T4

TXFD

TX

10FD

10

Selector

Description/Usage

Next Page bit.

1 = transmitting the protocol specific data page;

0 = transmitting the primary capability data page

1 = link partner acknowledges reception of local node’s capability

data word.

1 = link partner is indicating a remote fault.

Reserved

1 = Flow control is supported by link partner ,

0 = Flow control is not supported by link partner.

1 = 100Base-T4 is supported by link partner;

0 = 100Base-T4 not supported by link partner.

1 = 100Base-TX full duplex is supported by link partner;

0 = 100Base-TX full duplex not supported by link partner.

1 = 100Base-TX is supported by link partner;

0 = 100Base-TX not supported by link partner.

1 = 10Base-T full duplex is supported by link partner;

0 = 10Base-T full duplex not supported by link partner.

1 = 10Base-T is supported by link partner;

0 = 10Base-T not supported by link partner.

Link Partner's binary encoded node selector. Currently only

CSMA/CD <00001> is specified.

Default/Attribute

0, RO

0, RO

0, RO

-

0, RO

0, RO

0, RO

0, RO

0, RO

0, RO

<00000>, RO

5.22 Auto-Negotiation Expansion Register

(Offset 006Ah-006Bh, R)

This register contains additional status for NWay auto-negotiation.

Bit

Name

Description/Usage

Default/Attribute

15-5

-

Reserved. These bits are always set to 0.

-

4

MLF

Status indicating if a multiple link fault has occurred.

0, RO

1 = fault occurred; 0 = no fault occurred.

3

LP_NP_ABLE Status indicating if the link partner supports Next Page negotiation.

0, RO

1 = supported; 0 = not supported.

2

NP_ABLE This bit indicates if the local node is able to send additional Next

0, RO

Pages.

1

PAGE_RX This bit is set when a new Link Code Word Page has been received.

0, RO

The bit is automatically cleared when the auto-negotiation link

partner’s ability register (register 5) is read by management.

0

LP_NW_ABLE 1 = link partner supports NWay auto-negotiation.

0, RO

2001-11-9

28

Rev.1.41

Share Link: