ICS1893AF datasheet(76/137 Pages) RENESAS

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ICS1893AF, Rev D 10/26/04

October, 2004

Chapter 8

Management Register Set

ICS1893AF Data Sheet - Release

8.7

Table 8-12 lists the bits for the Auto-Negotiation Link Partner Ability Register. An STA uses this register to

determine the capabilities being advertised by the remote link partner. During the auto-negotiation process,

the ICS1893AF advertises (that is, exchanges) the capability data with its remote link partner using a

pre-defined Link Code Word. The value of the Link Control Word received from its remote link partner

establishes the value of the bits in this register.

Note:

For an explanation of acronyms used in Table 8-12, see Chapter 1, “Abbreviations and Acronyms”.

The values in this register are valid only when the auto-negotiation process is complete, as indicated by

bit 1.5 or bit 17.4.

† As per the IEEE Std 802.3u, during any write operation to any bit in this register, the STA must write the default value

to all Reserved bits.

8.7.1

Next Page (bit 5.15)

If bit 5.15 is logic:

• Zero, then the remote link partner is indicating that this is the last page being transmitted.

• One, then the remote link partner is indicating that additional pages follow.

Table 8-12.

Auto-Negotiation Link Partner Ability Register (register 5 [0x05])

Bit

Definition

When Bit = 0

When Bit = 1

Ac-

cess

De-

fault

Hex

5.15

Next Page disabled

Next Page enabled

–

5.14

Acknowledge

Always 0

N/A

–

5.13

Remote fault

No faults detected

Remote fault detected

–

5.12

IEEE reserved

Always 0

N/A

–

0†

5.11

IEEE reserved

Always 0

N/A

–

0†

5.10

IEEE reserved

Always 0

N/A

–

0†

5.9

100Base-T4

Always 0. (Not supported.)

N/A

–

5.8

100Base-TX, full duplex

Link partner is not capable

Link partner is capable

–

5.7

100Base-TX, half duplex Link partner is not capable

Link partner is capable

–

5.6

10Base-T, full duplex

Link partner is not capable

Link partner is capable

–

5.5

10Base-T, half duplex

Link partner is not capable

Link partner is capable

–

5.4

Selector Field bit S4

IEEE 802.3 defined. Always 0. N/A

–

5.3

Selector Field bit S3

IEEE 802.3 defined. Always 0. N/A

–

5.2

Selector Field bit S2

IEEE 802.3 defined. Always 0. N/A

–

5.1

Selector Field bit S1

IEEE 802.3 defined. Always 0. N/A

–

5.0

Selector Field bit S0

N/A

IEEE 802.3 defined.

Always 1.

–

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