DNC3X3625 データシートの表示（PDF） - Agere -> LSI Corporation

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DNC3X3625

Hex 10/100 Mbits/s Ethernet Transceiver Macrocell

Agere -> LSI Corporation 

DNC3X3625

10/100 Mbits/s Ethernet Transceiver Macrocell

Advance Data Sheet

March 2000

Description

The DNC3X3625 is a twisted-pair transceiver macrocell that supports transmission and reception over category 3

unshielded twisted-pair (UTP) cable and category 5 UTP.

The DNC3X3625 has been designed specifically for applications that support both 10Base-T and 100Base-X, such

as network interface cards (NICs), switches.

Figure 1 represents a functional block diagram of the DNC3X3625 macrocell.

Figure 2 shows the I/Os of the DNC3X3625 macrocell.

4 Functional Block Diagram

100 Mbits/s TRANSCEIVER

MTXD[3:0]

4B/5B

ENCODER

FAR-END

FAULT GEN.

SCRAMBLER

PDT

PMD

TX

MCRS

MCOL

MRXD[3:0]

MRX_DV

MRX_ER

MRXCLK MII

MTXCLK

MTXD[3:0]

MTX_EN

MTX_ER

SD

TX STATE

RX STATE SD

MACHINE

COLLISION

DETECT

SD

MACHINE

CAR_STAT

CIM

CARRIER

RXERR_ST DETECT

5B/4B

DECODER

ALIGNER

FAR-END

FAULT DETECT

DESCRAMBLER

PDR/

SD

DCRU

PMD

RX

TPO±

SERIAL/PARALLEL

INTERFACE

CLK20

10 Mbits/s TRANSCEIVER

LC10 LS10

LC100

LS100

MDC

MDIO

MII

MANAGEMENT

AUTONEGOTIATION

AND LINK MONITOR

RMCLK

125 MHZ

FREQ.

SYNTH.

25 MHz

125 MHz

20 MHz

TPI±

25 MHz

CRYSTAL

Figure 1. DNC3X3625 Functional Block Diagram (1 Channel Shown)

5-5136(F).j

4

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