DM9801A datasheet(8/60 Pages) DAVICOM

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DM9801A

1M Home Phoneline Network Physical Layer Single Chip Transceiver

Final

Version: DM9801A-DS-F01

May 30, 2001

Pin Description (Continued)

Pin No.

Pin Name

I/O

Description

LED Interface :

These outputs can directly drive LEDs or provide status information to a network management device.

TXLED#

ACTLED#

Transmit LED:

Indicates the DM9801A is transmitting data (Active low, Open drain).

Config0 = 0 and Config1 = 0

Activity LED:

Indicates the DM9801A is either transmitting or receiving data (Active low,

Open drain).

RXLED#

LNKLED#

Receive LED:

Indicates the presence of receive data activity by the DM9801A(Active low,

Open drain). Config0 = 0 and Config1 = 0

Link LED:

Indicates Good Link status and that the Link Integrity Timer has not expired

(Active low, Open drain).

COLLED#

Collision LED:

Indicates the presence of collision activity on the 1M network (Active low,

Open drain).

Home Phoneline Network Media Interface:

HNPA

ALG

Home Network Interface, Positive, Primary:

This is the positive interface connection of the primary 1M network

interface.

HNNA

ALG

Home Network Interface, Negative, Primary:

This is the negative interface connection of the primary 1M network

interface.

HNPB

ALG

Home Network Interface, Positive, Secondary:

This is the positive interface connection of the secondary 1M network

interface.

HNNB

ALG

Home Network Interface, Negative, Secondary:

This is the negative interface connection of the secondary 1M network

interface.

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