LAN83C183 datasheet(13/113 Pages) SMSC

No. de pieza	LAN83C183

Descripción Electrónicos	FAST ETHERNET PHYSICAL LAYER DEVICE

PDF	113 Pages

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Fabricante Electrónico	SMSC [SMSC Corporation]

Página de inicio	http://www.smsc.com

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SMSC DS – LAN83C183

Rev. 12/14/2000

Figure 1.2 100BASE-TX/FX and 10BASE-T Frame Format

Interframe

Gap

PREAMBLE

SFD

LLC Data

FCS

Interframe

Gap

Ethernet MAC Frame

SSD

LLC DATA

FCS

100BASE-TX Data Symbols

IDLE

PREAMBLE

SFD

ESD

IDLE

IDLE =

SSD =

PREAMBLE =

SFD =

DA, SA, LN, LLC DATA, FCS =

ESD =

[ 1 1 1 1 ...]

[ 1 1 0 0 0 1 0 0 0 1 ]

[ 1 0 1 0 ...] 62 Bits Long

[ 1 1 ]

[ DATA ]

[ 0 1 1 0 1 0 0 1 1 1 ]

Before/After

4B5B Encoding,

Scrambling, and

MLT3 Coding

LLC DATA

FCS

10BASE-T Data Symbols

IDLE

PREAMBLE

SFD

SOI

IDLE

IDLE =

PREAMBLE =

SFD =

DA, SA, LN, LLC DATA, FCS =

[ No Transitions ]

[ 1 1 ]

[ DATA ]

[ 1 1 ] With No MID Bit

SOI =

Transition

[ 1 0 1 0 ...] 62 Bits Long

Before/After

Manchester

Encoding

SSD

LLC DATA

FCS

100BASE-FX Data Symbols

IDLE

PREAMBLE

SFD

ESD

IDLE

IDLE =

SSD =

PREAMBLE =

SFD =

DA, SA, LN, LLC DATA, FCS =

ESD =

[ 1 1 1 1 ...]

[ 1 1 0 0 0 1 0 0 0 1 ]

[ 1 0 1 0 ...] 62 Bits Long

[ 1 1 ]

[ DATA ]

[ 0 1 1 0 1 0 0 1 1 1 ]

Before/After

4B5B Encoding

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