DM9302 datasheet(46/64 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

8.12 (Specified config) Register – 14H

Bit

Bit Name

Default

Description

TSTSE1

0,RW

Vendor test select 1 control

TSTSE2

0,RW

Vendor test select 2 control

FORCE_TXSD

0,RW

Force Signal Detect

1: force SD signal OK in 100M

0: normal SD signal.

FORCE_FEF

0,RW

Vendor test select control

PREAMBLEX

0,RW

Preamble Saving Control

0: when bit 10 is set, the 10BASE-T transmit preamble count is

reduced. When bit 11 of register 1DH is set, 12-bit preamble is

reduced; otherwise 22-bit preamble is reduced.

1: transmit preamble bit count is normal in 10BASE-T mode

TX10M_PWR

1,RW

10BASE-T mode Transmit Power Saving Control

1: enable transmit power saving in 10BASE-T mode

0: disable transmit power saving in 10BASE-T mode

NWAY_PWR

0,RW

Auto-negotiation Power Saving Control

1: disable power saving during auto-negotiation period

0: enable power saving during auto-negotiation period

Reserved

0, RO

Reserved

Read as 0, ignore on write

MDIX_CNTL

MDI/MDIX,RO The polarity of MDI/MDIX value

1: MDIX mode

0: MDI mode

AutoNeg_dpbk

0,RW

Auto-negotiation Loopback

1: test internal digital auto-negotiation Loopback

0: normal.

Mdix_fix Value

0, RW

MDIX_CNTL force value:

When Mdix_down = 1, MDIX_CNTL value depend on the register

value.

Mdix_down

0,RW

MDIX Down

Manual force MDI/MDIX.

0: Enable HP Auto-MDIX

1: Disable HP Auto-MDIX ,

MDIX_CNTL value depend on Reg.14H.bit5

MonSel1

0,RW

Vendor monitor select 1

MonSel0

0,RW

Vendor monitor select 0

Reserved

0,RW

Reserved

Force to 0, in application.

PD_value

0,RW

Power down control value

Decision the value of each field Reg.13H.

1: power down

0: normal

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