dp83950b National Semiconductor Corporation, dp83950b Datasheet - Page 71

• Manufacturer Part Number: dp83950b
• Description: Dp83950b Rictm Repeater Interface Controller
• Manufacturer: National Semiconductor Corporation

9 0 AC and DC Specifications
COLLISION TIMING AUI PORTS
Collision activity propagation start up and end delays for ports in non 10BASE-T mode
RECEIVE COLLISION TIMING
Note 1 PKEN assumed high
Note 2 Assuming reception ended before COLN goes inactive TW2 is included in this parameter Assuming ACTN
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 5 5 Mode
Load Operation
COLLISION TIMING 10BASE-T PORTS
Collision activity propagation start up and end delays for ports in 10BASE-T mode
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 5 5 Mode
Load Operation
Number
T30t
T31t
Number
T32a
T33a
T39
T40
colaanya
colianyi
Symbol
cdacolna
cdicolni
colnajs
colnije
Symbol
Collision Active to ANYXN Active
Collision Inactive to ANYXN Inactive (Note 1)
CD Active to COLN Active (Note 1)
CD Inactive to COLN Inactive
COLN Active to Start of Jam
COLN Inactive to End of Jam (Note 2)
(Continued)
Parameter
Parameter
71
Min
TL F 11096 – 29
TL F 11096 – 28
d
Min
to ACTN
s
delay is 0
Max
215
400
800
55
Max
800
400
Units
Units
ns
ns
ns
ns
ns
ns