COM90C66LJP Ver la hoja de datos (PDF) - SMSC -> Microchip

Número de pieza

componentes Descripción

Lista de partido

COM90C66LJP

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

SMSC -> Microchip 

TABLE OF CONTENTS

FEATURES ........................................................................................................................................................................ 1

GENERAL DESCRIPTION ................................................................................................................................................ 1

PIN CONFIGURATION...................................................................................................................................................... 3

DESCRIPTION OF PIN FUNCTIONS............................................................................................................................... 4

PROTOCOL DESCRIPTION............................................................................................................................................. 9

NETWORK PROTOCOL........................................................................................................................................... 9

NETWORK RECONFIGURATION ........................................................................................................................... 9

BROADCAST MESSAGES ..................................................................................................................................... 10

EXTENDED TIMEOUT FUNCTION ........................................................................................................................ 10

LINE PROTOCOL.................................................................................................................................................... 10

SYSTEM DESCRIPTION..................................................................................................................................................12

MICROPROCESSOR INTERFACE .........................................................................................................................12

TRANSMISSION MEDIA INTERFACE ....................................................................................................................13

FUNCTIONAL DESCRIPTION .........................................................................................................................................13

MICROSEQUENCER ...............................................................................................................................................13

ADDRESS DECODING ............................................................................................................................................19

INTERNAL REGISTERS ..........................................................................................................................................22

INTERNAL RAM .......................................................................................................................................................29

SOFTWARE INTERFACE........................................................................................................................................29

SOFTWARE COMPATIBILITY CONSIDERATIONS ..............................................................................................31

COMMAND CHAINING ............................................................................................................................................32

RESET DETAILS ......................................................................................................................................................34

READ AND WRITE CYCLES ...................................................................................................................................35

NODE ID LOGIC .......................................................................................................................................................43

TRANSMIT/RECEIVE LOGIC ..................................................................................................................................43

IMPROVED DIAGNOSTICS.....................................................................................................................................43

OSCILLATOR ...........................................................................................................................................................45

OPERATIONAL DESCRIPTION ......................................................................................................................................46

MAXIMUM GUARANTEED RATINGS .....................................................................................................................46

DC CHARACTERISTICS..........................................................................................................................................46

TIMING DIAGRAMS .........................................................................................................................................................49

Please see Addendum 1 entitled Data Sheet Errata for Revision B COM90C66, which discusses changes to this

data sheet which apply to the Revision B device, on Page 62.

Please see Addendum 2 entitled Data Sheet Errata for Revision D COM90C66, which discusses changes to this

data sheet which apply to the Revision D device, on Page 64.

80 Arkay Drive

Hauppauge, NY 11788

(516) 435-6000

FAX (516) 273-3123

2

Share Link: