CS8952 datasheet(38/82 Pages) CIRRUS

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CS8952

CrystalLAN™ 100BASE-X and 10BASE-T Transceiver

6.5

Auto-Negotiation Advertisement Register - Address 04h

Acknowledge

Remote Fault

Technology Ability Field

765

4321

Technology Ability Field

Protocol Selector Field

BIT

NAME

TYPE

RESET

DESCRIPTION

Read/Write 0

When set, this bit enables the ability to exchange

Next-Pages with the link partner. This bit should be

cleared if it is not desired to engage in Next Page

exchange.

Note: This bit is disabled, and writes to this bit are

ignored when the National Compatibility Mode bit of

the 10BASE-T Configuration Register (address 1Ch)

is set.

Acknowledge

Read Only

When set, this bit indicates consistent reception of

the link partner’s data.

Remote Fault

Read/Write 0

This bit may be used to indicate a fault condition to

the link partner. Setting this bit will signal to the link

partner that a fault condition has occurred.

12:5

Technology Ability

Field

Read/Write 0000 1111

This field determines the advertised capabilities of

the CS8952 as shown below. When the bit is set, the

corresponding technology will be advertised during

auto-negotiation.

BIT Capability

Reserved

PAUSE operation for full duplex links. Set only

if supported by the host MAC.

100BASE-T4 (Note: this technology is not

supported and can not be set.

100BASE-TX Full Duplex

100Base-TX Half Duplex

10BASE-T Full Duplex

10BASE-T Half Duplex

4:0

Protocol Selector

Field

Read/Write 0 0001

This field is used to identify the type of message

being sent by auto-negotiation. This field defaults to

a value of “00001” for IEEE 802.3 messages.

CS8952 数据表(PDF) 38 Page - Cirrus Logic

CS8952 数据表(HTML) 38 Page - Cirrus Logic

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