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DP83952 Datasheet(PDF) 82 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83952
Description  Repeater Interface Controller with Security Features (RIC II)
PDF  90 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83952 Datasheet(HTML) 82 Page - National Semiconductor (TI)

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100 Timing and Load Diagrams (Continued)
RECEIVE COLLISION TIMING
TLF12499 – 30
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
COLLISION TIMING10BASE-T PORTS
Collision activity propagation start up and end delays for ports in 10BASE-T mode
TLF12499 – 31
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 already been performed and no other port is asserting ANYXN
82



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