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TMC2005-JT

ARCNET 5 Port HUB Controller

SMSC -> Microchip 

ARCNET 5 Port HUB Controller

Datasheet

TABLE OF CONTENTS

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

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

PIN CONFIGURATION ............................................................................................................................................4

BLOCK DIAGRAM....................................................................................................................................................4

BLOCK DIAGRAM....................................................................................................................................................5

DESCRIPTION OF PIN FUNCTIONS ....................................................................................................................5

DESCRIPTION OF PIN FUNCTIONS ....................................................................................................................6

TX/RX INTERFACE....................................................................................................................................................7

OPERATING MODE SETUP ..........................................................................................................................................8

PLL ...........................................................................................................................................................................8

OTHER SIGNALS ........................................................................................................................................................9

OPERATIONAL DESCRIPTION...........................................................................................................................10

DIRECTION DETERMINATION ...................................................................................................................................10

DIRECTION RELEASE ...............................................................................................................................................10

JITTER FILTER..........................................................................................................................................................10

OPTION FEATURE FOR JITTER FILTERING.................................................................................................................11

OPTION FEATURE FOR NOISE CUT MODE .................................................................................................................11

APPLICATION NOTES ........................................................................................................................................12

PORT GROUP...........................................................................................................................................................20

VARIOUS SETUP.......................................................................................................................................................20

EXAMPLE FOR OPERATION MODE SETUP TO EACH PORT........................................................................................20

NOTE FOR UNUSED PORT .........................................................................................................................................20

EXAMPLE FOR POWER-ON RESET CIRCUIT ..............................................................................................................20

CONNECTING THE TMC2005 WITH INTERNAL PLL...................................................................................21

METHOD TO CONNECT A CRYSTAL CLOCK.............................................................................................................22

NPLLTST PIN..........................................................................................................................................................22

CASCADING CONNECTION ................................................................................................................................23

RING NETWORK WITH THE TMC2005.....................................................................................................................26

MAXIMUM GUARANTEED RATINGS*............................................................................................................27

STANDARD OPERATING CONDITION ............................................................................................................27

DC CHARACTERISTIC - INPUT PIN ..................................................................................................................27

DC CHARACTERISTIC - OUTPUT PIN ..............................................................................................................28

AC CHARACTERISTIC - CLOCK AND RESET...................................................................................................28

AC CHARACTERISTIC – RX WAVEFORMS AND TX WAVEFORMS ........................................................................29

TMC2005-JT 64 PIN TQFP PACKAGE OUTLINE .............................................................................................31

SMSC TMC2005-JT

Page 3

DATASHEET

Revision 1.0 (01-30-06)

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