ICS1893AFLF Datasheet, PDF (133/136 Pages) Integrated Device Technology – 3.3-V 10Base-T/100Base-TX Integrated PHYceiver™

ICS1893AF Data Sheet - Release
Chapter 10 DC and AC Operating Conditions
10.5.20 Auto-Negotiation Fast Link Pulse Timing
Table 10-27 lists the significant time periods for the ICS1893AF Auto-Negotiation Fast Link Pulse. The time
periods consist of timings of signals on the following pins:
• TP_TXP
• TP_TXN
Figure 10-21 shows the timing diagram for one pair of these differential signals, for example TP_TXP minus
TP_TXN.
Table 10-27. Auto-Negotiation Fast Link Pulse Timing
Time
Period
Parameter
Conditions Min. Typ. Max. Units
t1 Clock/Data Pulse Width
–
–
90
–
ns
t2 Clock Pulse-to-Data Pulse Timing
–
55 60 70
µs
t3 Clock Pulse-to-Clock Pulse Timing
–
110 125 140 µs
t4 Fast Link Pulse Burst Width
–
–
5
–
ms
t5 Fast Link Pulse Burst to Fast Link Pulse Burst
–
10 15 25
ms
t6 Number of Clock/Data Pulses in a Burst
–
15 20 30 pulses
Figure 10-21. 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
ICS1893AF, Rev. D 10/26/04
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
133
October, 2004