80220 Datasheet, PDF (73/91 Pages) LSI Computer Systems – 100BASE-TX/10BASE-T Ethernet Media Interface Adapter

80220/80221
LINK PULSE TIMING CHARACTERISTICS
Refer to Figures 28-30 for Timing Diagrams
SYM
t
61
t₆₂
t
63
t
64
t₆₅
t
66
t
63a
t_64a
t
65a
t
66a
t₆₇
t
68
t₆₉
t₇₀
t
71
PARAMETER
NLP Transmit Link
Pulse Width
NLP Transmit Link
Pulse Period
NLP Receive Link Pulse
Width Required For
Detection
NLP Receive Link Pulse
Minimum Period
Required For Detection
NLP Receive Link Pulse
Maximum Period
Required For Detection
NLP Receive Link
Pulses Required To Exit
Link Fail State
T4LP Receive Link
Pulse Width Required
For Detection
T4LP Receive Link
Pulse Minimum Period
Required For Detection
T4LP Receive Link
Pulse Maximum Period
Required For Detection
T4LP Receive Link
Pulses Required To Exit
Link Fail State
FLP Transmit Link
Pulse Width
FLP Transmit Clock
Pulse To Data Pulse
Period
FLP Transmit Clock
Pulse To Clock Pulse
Period
FLP Transmit Link
Pulse Burst Period
FLP Receive Link Pulse
Width Required For
Detection
LIMIT
MIN TYP MAX
See Figure 7
UNIT
ns
CONDITION
8
24
mS
50
nS
6
7
mS link_test_min
50
150 mS link_test_max
3
3
40
3
Link lc_max
Pulses
nS
0.15
0.45 mS
5
6
mS
31
Link 31 Link Pulses Are Required To Exit
Pulses Link Fail to Link Ready
100
150 nS
55.5 62.5 69.5
µS
interval_timer
111 125 139
µS
8
22
mS
transmit_link_burst_timer
50
nS
47-733
MD400159/E