ICS1893 Datasheet, PDF (148/152 Pages) Integrated Circuit Systems – 3.3-V 10Base-T/100Base-TX Integrated PHYceiver™

ICS1893 Data Sheet - Release
Chapter 10 DC and AC Operating Conditions
10.5.22 Auto-Negotiation Fast Link Pulse Timing
Table 10-29 lists the significant time periods for the ICS1893 Auto-Negotiation Fast Link Pulse. The time
periods consist of timings of signals on the following pins:
• TP_TXP
• TP_TXN
Figure 10-23 shows the timing diagram for one pair of these differential signals, for example TP_TXP
minus TP_TXN.
Table 10-29. Auto-Negotiation Fast Link Pulse Timing
Time
Period
t1
t2
t3
t4
t5
t6
Parameter
Clock/Data Pulse Width
Clock Pulse-to-Data Pulse Timing
Clock Pulse-to-Clock Pulse Timing
Fast Link Pulse Burst Width
Fast Link Pulse Burst to Fast Link Pulse Burst
Number of Clock/Data Pulses in a Burst
Conditions
–
–
–
–
–
–
Min.
–
55
110
–
10
15
Typ.
90
60
125
5
15
20
Max.
–
70
140
–
25
30
Units
ns
µs
µs
ms
ms
pulses
Figure 10-23. Auto-Negotiation Fast Link Pulse Timing Diagram
Differential
Twisted Pair
Transmit Signal
Clock
Pulse
t1
t2
Data
Pulse
t1
t3
Clock
Pulse
Differential
Twisted Pair
Transmit Signal
FLP Burst
t4
t5
FLP Burst
ICS1893 Rev C 6/6/00
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
148
June, 2000