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80221 Datasheet(PDF) 63 Page - LSI Computer Systems

Part # 80221
Description  100BASE-TX/10BASE-T Ethernet Media Interface Adapter
PDF  91 Pages
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Manufacturer  LSI [LSI Computer Systems]
Direct Link  http://www.lsicsi.com
Logo LSI - LSI Computer Systems

80221 Datasheet(HTML) 63 Page - LSI Computer Systems

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80220/80221
4-63
MD400159/E
63
RECEIVE TIMING CHARACTERISTICS
Refer to Figures 19-23 for Timing Diagrams
LIMIT
SYM
PARAMETER
MIN
TYP
MAX
UNIT
CONDITIONS
t
31
Start Of Packet To CRS
200
nS
100 Mbps, MII
Assert Delay
200
nS
100 Mbps, FBI
700
nS
10 Mbps
t
32
End Of Packet To CRS
130
240
nS
100 Mbps, MII
Deassert Delay
240
nS
100 Mbps, FBI
600
nS
10 Mbps.
Relative To Start Of SOI Pulse
t
33
Start Of Packet To
240
nS
100 Mbps
RX_DV Assert Delay
3600
nS
10 Mbps
t
34
End Of Packet To
280
nS
100 Mbps
RX_DV Deassert Delay
1000
nS
10 Mbps.
Relative To Start Of SOI Pulse
t
37
RX_CLK To RX_DV,
-8
8
nS
100 Mbps
RXD, RX_ER Delay
-80
80
nS
10 Mbps
t
38
RX_CLK High Time
18
20
22
nS
100 Mbps
180
200
600
nS
10 Mbps
t
39
RX_CLK Low Time
18
20
22
nS
100 Mbps
180
200
600
nS
10 Mbps
t
40
SOI Pulse Minimum
125
200
nS
10 Mbps
Width Required for Idle
Measure TPI
± from last zero cross
Detection
to 0.3V point.
t
41
Receive Input Jitter
±3.0
nS pk - pk
100 Mbps
±13.5
nS pk -pk
10 Mbps
t
43
PLEDn Delay Time
25
mS
PLEDn Programmed for Activity
t
44
PLEDn Pulse Width
80
105
mS
PLEDn Programmed for Activity
t
45
RX_CLK, RXD, CRC,
10
nS
RX_DV, RX_ER Output
Rise and Fall Times
t
46
RX_EN Deassert to Rcv
40
nS
MII Output HI-Z Delay
t
47
RX_EN Assert to Rcv
40
nS
MII Output Active Delay



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