FALXT972MCCA4 datasheet(79/92 Pages) INTEL

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Intel

® LXT972M Single-Port 10/100 Mbps PHY Transceiver

Datasheet

Document Number: 302875-005

Revision Date: 27-Oct-2005

Table 45 lists auto-negotiation advertisement bits.

Table 45. Auto-Negotiation Advertisement Register - Address 4, Hex 4

Bit

Name

Description

Type 1

Default

4.15

0 = Port has no ability to send multiple pages.

1 = Port has ability to send multiple pages.

R/W

4.14

Reserved

Ignore when read.

4.13

Remote Fault

0 = No remote fault.

1 = Remote fault.

R/W

4.12

Reserved

Write as ‘0’. Ignore on Read.

R/W

4.11

Asymmetric

Pause

Pause operation defined in IEEE 802.3 Standard,

Clause 40 and 27

R/W

4.10

Pause

0 = Pause operation disabled.

1 = Pause operation enabled for full-duplex links

R/W

4.9

100BASE-T4

0 = 100BASE-T4 capability is not available.

1 = 100BASE-T4 capability is available.

NOTE: The LXT972M Transceiver does not

support 100BASE-T4 but allows this bit to

be set to advertise in the auto-negotiation

sequence for 100BASE-T4 operation. An

external 100BASE-T4 transceiver can be

switched in if this capability is desired.

R/W

4.8

100BASE-TX

full-duplex

0 = Port is not 100BASE-TX full-duplex capable.

1 = Port is 100BASE-TX full-duplex capable.

R/W

Note 2

4.7

100BASE-TX

0 = Port is not 100BASE-TX capable.

1 = Port is 100BASE-TX capable.

R/W

Note 2

4.6

10BASE-T

full-duplex

0 = Port is not 10BASE-T full-duplex capable.

1 = Port is 10BASE-T full-duplex capable.

R/W

Note 2

4.5

10BASE-T

0 = Port is not 10BASE-T capable.

1 = Port is 10BASE-T capable.

R/W

Note 2

4.4:0

Selector Field,

S<4:0>

<00001> = IEEE 802.3.

<00010> = IEEE 802.9 ISLAN-16T.

<00000> = Reserved for future auto-negotiation

development.

<11111> = Reserved for future auto-negotiation

development.

NOTE: Unspecified or reserved combinations must

not be transmitted.

R/W

00001

1. R/W = Read/Write

RO = Read Only

2. Some bits have their default values determined at reset by hardware configuration pins. For default details

for these bits, see Section 5.4.4, “Hardware Configuration Settings”.

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