MPC8540 datasheet(725/1302 Pages) FREESCALE

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Memory Map/Register Definition

MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1

Freescale Semiconductor

14-99

Table 14-105 describes the fields of the ANNPT register.

14.5.4.8 AN Link Partner Ability Next Page Register (ANLPANP)

Figure 14-106 shows the ANLPANP register.

Table 14-106 describes the ANLPANP fields.

Table 14-105. ANNPT Field Descriptions

Bits

Name

Description

Next page indication. [Reference MII bit 7.15 in IEEE 802.3, 2000 Edition Clause 28.2.4]

0 Last page

1 Additional next pages to follow

Ack

Acknowledge. Write 0, ignore on read. [Reference MII bit 7.14] This bit is read-only.

Msg Page

Message page. [Reference MII bit 7.13]

0 Unformatted page

1 Message page

Ack2

Acknowledge 2. Used by the next page function to indicate that the device has the ability to comply

with the message. [Reference MII bit 7.12]

0 The local device cannot comply with message.

1 The local device complies with message.

Toggle

Toggle. Used to ensure synchronization with the link partner during next page exchange. This bit

always takes the opposite value of the toggle bit of the previously-exchanged link code word. The

initial value in the first next page transmitted is the inverse of bit 11 in the base link code word.

[Reference MII bit 7.11] This bit is read-only.

0 Toggle bit of the previously-exchanged link code word was set

1 Toggle bit of the previously-exchanged link code word was clear

5–15

Message/

Unformatted

Code Field

Message pages are formatted pages that carry a pre-defined message code, which is enumerated

in IEEE 802.3u/Annex 28C. Unformatted code fields take on an arbitrary value. [Reference MII field

7.10:0]

R Next Page

Ack

Msg Page

Ack2

Toggle

Message/Unformatted Code Field

Reset

0000_0000_0000_0000

Offset

TBIPA offset + 0x08

Figure 14-106. AN Link Partner Ability Next Page Register Definition

Table 14-106. ANLPANP Field Descriptions

Bits

Name

Description

Next page. The link partner sets and clears this bit.

0 Last page from link partner

1 Additional next pages to follow

Ack

Acknowledge. Ignore on read. [Reference MII bit 8.14] This bit is read-only.

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