COM20020 View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

COM20020

COM20020 3.3V ULANC Universal Local Area Network Controller with 2K x 8 On-Board RAM

SMSC -> Microchip 

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A0/nMUX

A1

A2/BALE

ADDRESS

DECODING

CIRCUITRY

AD0-AD2,

D3-D7

2K x 8

RAM

ADDITIONAL

REGISTERS

nINTR

nRESET

STATUS/

COMMAND

REGISTER

RESET

LOGIC

MICRO-

SEQUENCER

AND

WORKING

REGISTERS

TX/RX

LOGIC

nRD/nDS

nWR/DIR

nCS

BUS

ARBITRATION

CIRCUITRY

RECONFIGURATION

TIMER

OSCILLATOR

NODE ID

LOGIC

nPULSE1

nPULSE2

nTXEN

RXIN

XTAL1

XTAL2

FIGURE 7 - INTERNAL BLOCK DIAGRAM

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