COM90C66LJP View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

COM90C66LJP

ARCNET® Controller/Transceiver with AT® Interface and On-Chip RAM

SMSC -> Microchip 

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IOS0-2

MS0-4

A0-A19

nENROM

nPROM

AEN

BALE

nTOPL

nTOPH

D0-D15

ADDRESS

DECODING

CIRCUITRY

1K x

RAM8

1K x

RAM8

ADDITIONAL

REGISTERS

INTR

RESET IN

nMEMR

nMEMW

nIOR

nIOW

nMEMCS16

nIOCS16

IOCHRDY

nSBHE

nOWS

STATUS/

COMMAND

REGISTER

RESET

LOGIC

MICRO-

SEQUENCER

AND

WORKING

REGISTERS

I/O CHANNEL

READY

AND BUS

ARBITRATION

CIRCUITRY

RECONFIGURATION

TIMER

TX/RX

LOGIC

OSCILLATOR

NODE ID

LOGIC

nPULSE1

nPULSE2

nRXIN

nTXLED

nBSLED

XTAL1

XTAL2

CLK

CACLK

NID0-7

FIGURE 3 - INTERNAL BLOCK DIAGRAM

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