AX88796ALF datasheet(46/68 Pages) ASIX

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AX88796ALF

3-in-1 Local Bus Fast Ethernet Controller

5.2.6 MR5 –Autonegotiation Link Partner (LP) Ability Register (Next Page) Bit

Descriptions

FIELD

TYPE

DESCRIPTION

5.15

(LP_NEXT_PAGE)

Next Page. When this bit is set to logic 0, it indicates that this is the last page

to be transmitted. Logic 1 indicates that additional pages will follow.

5.14 (LP_ACK)

Acknowledge. When this bit is set to logic 1, it indicates that the link partner

has successfully received its partner’s link code word.

5.13

(LP__MES_PAGE)

Message Page. This bit is used by the NEXT _PAGE function to

differentiate a message page (logic 1) from an unformatted page (logic 0).

5.12 (LP_ACK2)

Acknowledge 2. This bit is used by the NEXT_PAGE function to indicate

that a device has the ability to comply with the message (logic 1) or not (logic

0).

5.11 (LP_TOGGLE)

Toggle. This bit is used by the arbitration function to ensure synchronization

with the link partner during next page exchange. Logic 0 indicates that the

previous value of the transmitted link code word was logic 1. Logic 1

indicates that the previous value of the transmitted link code word was logic

5.10:0 (MCF)

Message/Unformatted Code Field. With these 11 bits, there are 2048

possible messages. Message code field definitions are described in annex

28C of the IEEE 802.3u standard.

5.2.7 MR6 – Autonegotiation Expansion Register Bit Descriptions

FIELD

TYPE

DESCRIPTION

6.15:5 (RESERVED)

Reserved.

6.4

(PAR_DET_FAULT)

R/LH

Parallel Detection Fault. When this bit is set to 1, it indicates that a fault has

been detected in the parallel detection function. This fault is due to more than

one technology detecting concurrent link conditions. This bit can only be

cleared by reading this register.

6.3

(LP_NEXT_PAGE_AB

LE)

Link Partner Next Page Able. When this bit is set to 1, it indicates that the

link partner supports the next page function.

6.2

(NEXT_PAGE_ABLE)

Next Page Able. This bit is set to 1, indicating that this device supports the

NEXT_PAGE function.

6.1 (PAGE_REC)

R/LH

Page Received. When this bit is set to 1, it indicates that a NEXT_PAGE has

been received.

6.0

(LP_NWAY_ABLE)

Link Partner Autonegotiation Capable. When this bit is set to 1, it

indicates that the link partner is autonegotiation capable.

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