DM9302 datasheet(42/64 Pages) DAVICOM

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DM9302

10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus

Preliminary datasheet

DM9302-15-DS-P01

July 30, 2009

1 = Remote fault indicated by link partner

0 = No remote fault indicated by link partner

12-11

Reserved

0, RO

Reserved

Read as 0, ignore on write

FCS

0, RO

Flow Control Support

1 = Controller chip supports flow control ability by link partner

0 = Controller chip doesn’t support flow control ability by link

partner

0, RO

100BASE-T4 Support

1 = 100BASE-T4 is supported by the link partner

0 = 100BASE-T4 is not supported by the link partner

TX_FDX

0, RO

100BASE-TX Full Duplex Support

1 = 100BASE-TX full duplex is supported by the link partner

0 = 100BASE-TX full duplex is not supported by the link partner

TX_HDX

0, RO

100BASE-TX Support

1 = 100BASE-TX half duplex is supported by the link partner

0 = 100BASE-TX half duplex is not supported by the link partner

10_FDX

0, RO

10BASE-T Full Duplex Support

1 = 10BASE-T full duplex is supported by the link partner

0 = 10BASE-T full duplex is not supported by the link partner

10_HDX

0, RO

10BASE-T Support

1 = 10BASE-T half duplex is supported by the link partner

0 = 10BASE-T half duplex is not supported by the link partner

4-0

Selector

<00000>, RO Protocol Selection Bits

Link partner’s binary encoded protocol selector

8.7 Auto-negotiation Expansion Register (ANER) - 06H

Bit

Bit Name

Default

Description

15-5

Reserved

0, RO

Reserved

Read as 0, ignore on write

PDF

0, RO/LH

Local Device Parallel Detection Fault

PDF = 1: A fault detected via parallel detection function.

PDF = 0: No fault detected via parallel detection function

LP_NP_ABLE

0, RO

Link Partner Next Page Able

LP_NP_ABLE = 1: Link partner, next page available

LP_NP_ABLE = 0: Link partner, no next page

NP_ABLE

0,RO/P

Local Device Next Page Able

NP_ABLE = 1: DM9302, next page available

NP_ABLE = 0: DM9302, no next page

DM9302 does not support this function, so this bit is always 0

PAGE_RX

0, RO

New Page Received

A new link code word page received. This bit will be automatically

cleared when the register (register 6) is read by management

LP_AN_ABLE

0, RO

Link Partner Auto-negotiation Able

A “1” in this bit indicates that the link partner supports

Auto-negotiation

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