ICS1893 Datasheet, PDF (146/152 Pages) Integrated Circuit Systems – 3.3-V 10Base-T/100Base-TX Integrated PHYceiver™

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Chapter 10 DC and AC Operating Conditions
10.5.20 10Base-T: Jabber Timing
Table 10-27 lists the significant time periods for the 10Base-T jabber. The time periods consist of timings of
signals on the following pins:
• TXEN
• TP_TX (that is, TP_TXP and TP_TXN)
• COL
Figure 10-21 shows the timing diagram for the time periods.
Note: For more information on 10Base-T jabber operations, see Section 7.5.9, “10Base-T Operation:
Jabber”.
Table 10-27. 10Base-T Jabber Timing
Time
Period
Parameter
t1 Jabber Activation Time
t2 Jabber De-Activation Time
Conditions
10Base-T Half Duplex
10Base-T Half Duplex
Min. Typ. Max. Units
20
–
35 ms
300 – 325 ms
Figure 10-21. 10Base-T Jabber Timing Diagram
TXEN
t1
TP_TX
t2
COL
ICS1893 Rev C 6/6/00
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
146
June, 2000