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TNETE2008PBE Folha de dados(PDF) 12 Page - Texas Instruments

Nome de Peças TNETE2008PBE
Descrição Electrónicos  OctalPHY EIGHT 10BASE-T PHYSICAL-LAYER INTERFACES
PDF  33 Pages
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

TNETE2008PBE Folha de dados(HTML) 12 Page - Texas Instruments

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TNETE2008
OctalPHY
EIGHT 10BASE-T PHYSICAL-LAYER INTERFACES
SPWS042B – DECEMBER 1997 – REVISED JUNE 1998
12
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
LED status indication
The TNETE2008 has 7 pins that drive 24 LEDs in a multiplexed format, as shown in Figure 4.
LSEL6, 7
LSEL4, 5
LSEL2, 3
LSEL0, 1
LDUPCOL
LACTIVE
LLINK
DUPCOL6
DUPCOL7
DUPCOL5
DUPCOL4
DUPCOL2
DUPCOL3
DUPCOL0
DUPCOL1
ACTIVE0
ACTIVE2
ACTIVE3
ACTIVE4
ACTIVE5
ACTIVE6
ACTIVE7
LINK0
LINK2
LINK3
LINK4
LINK5
LINK6
LINK7
ACTIVE1
LINK1
180
Ω
180
Ω
180
Ω
180
Ω
Figure 4. LED External Connection
status LED states
LINK LED
Illuminates when its PHY has established a valid link. The LED flashes at 2 Hz during
autonegotiation.
ACTIVE LED
Illuminates when its PHY is transmitting or receiving data. The LED flashes at 19 Hz during
continuous activity.
DUPCOL LED
Illuminates continuously when its PHY is in full-duplex mode and illuminates for a minimum
duration of 20 ms when collisions occur in half-duplex mode. In the event of continuous or
frequent collisions, this LED flashes at 19 Hz. In jabber mode it flashes at 1 Hz.



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