DP83955AV datasheet(14/54 Pages) NSC

14 / 54 page

30 Pin Description (Continued)

Pin Description for DP83955

Driver

Description

Name

Type

ACTN

ACT

ivity on Port N This is a bidirectional signal The LERIC asserts this signal when data or

collision information is received from one of its network segments

The LERIC senses this signal when this LERIC or another LERIC in a multi-LERIC system is

receiving data or collision information

ANYXN

ctivity on ANY Port EXcluding Port N This is a bidirectional signal The LERIC asserts this signal

when a transmit collision is experienced or multiple ports have active collisions on their network

segments

The LERIC senses this signal when this LERIC or other LERICs in a multi-LERIC system are

experiencing transmit collisions or multiple ports have active collisions on their network segments

B e B

i-directional

Pin Description for DP83956

Driver

Description

Name

Type

ACTND

ACT

ivity on Port NDrive The LERIC asserts this signal when data or collision information is

received from one of its network segments

ACTNS

ACT

ivity on Port NSense The LERIC senses this signal when this LERIC or another LERIC in a

multi-LERIC system is receiving data or collision information

ANYXND

ctivity on ANY Port EXcluding Port NDrive The LERIC asserts this signal when a transmit

collision is experienced or multiple ports have active collisions on their network segments

ANYXNS

ctivity on ANY Port EXcluding Port NSense The LERIC senses this signal when this LERIC or

other LERICs in a multi-LERIC system are experiencing transmit collisions or multiple ports have

active collisions on their network segments

PKEN

acKet ENable This signal acts as an active high enable for an external bus transceiver (if

required) for the IRE IRC IRD and COLN signals When high the bus transceiver should be

transmitting on to the bus ie this LERIC is driving the IRD IRE IRC and COLN bus lines

When low the bus transceiver should receive from the bus

TT e TTL

compatible C e CMOS compatible OD e Open Drain I e Input O e Output

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