ICS1892
TSD
Chapter 10 DC and AC Operating Conditions
10Base-T/100BIaCseS-TX1I8nt9eg2rated PHYceiver™
10.5.20 10Base-T: Normal Link Pulse Timing
Table 10-27 lists the significant time periods for the 10Base-T Normal Link Pulse (which consists of timings
of signals on the TP_TXP pin). Figure 10-20 shows the timing diagram for the time periods.
Table 10-27. 10Base-T Normal Link Pulse Timing
Time
Period
Parameter
Conditions
10Base-T
Min. Typ. Max. Units
t1
t2
Normal Link Pulse Width
–
8
100
18
–
ns
COL Heartbeat (SQE) Assertion Duration 10Base-T Half Duplex
24
ms
Figure 10-20. 10Base-T Normal Link Pulse Timing Diagram
TP_TXP
t1
t2
ICS1892, Rev. D, 2/26/01
February 26, 2001
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
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IDT™ / ICS™ 10Base-T/100Base-TX Integrated PHYceiver™
ICS1892
143
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
