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DP83950B датащи(PDF) 71 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали DP83950B
подробное описание детали  RIC??Repeater Interface Controller
PDF  80 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83950B датащи(HTML) 71 Page - National Semiconductor (TI)

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90 AC and DC Specifications (Continued)
COLLISION TIMINGAUI PORTS
Collision activity propagation start up and end delays for ports in non 10BASE-T mode
RECEIVE COLLISION TIMING
TLF11096 – 28
Number
Symbol
Parameter
Min
Max
Units
T32a
cdacolna
CD Active to COLN Active (Note 1)
55
ns
T33a
cdicolni
CD Inactive to COLN Inactive
215
ns
T39
colnajs
COLN Active to Start of Jam
400
ns
T40
colnije
COLN Inactive to End of Jam (Note 2)
800
ns
Note 1
PKEN assumed high
Note 2
Assuming reception ended before COLN goes inactive TW2 is included in this parameter Assuming ACTNd to ACTNs delay is 0
Note
In these diagrams the Inter-RIC and Management Busses are shown using active high signals active low signals may also be used See Section 55 Mode
Load Operation
COLLISION TIMING10BASE-T PORTS
Collision activity propagation start up and end delays for ports in 10BASE-T mode
TLF11096 – 29
Number
Symbol
Parameter
Min
Max
Units
T30t
colaanya
Collision Active to ANYXN Active
800
ns
T31t
colianyi
Collision Inactive to ANYXN Inactive (Note 1)
400
ns
Note 1
TX collision extension has alreay been performed and no other port is asserting ANYXN
Note
In these diagrams the Inter-RIC and Management Busses are shown using active high signals active low signals may also be used See Section 55 Mode
Load Operation
71



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