ICS1892 Datasheet, PDF (142/148 Pages) Integrated Circuit Systems – 10Base-T/100Base-TX Integrated PHYceiver

ICS1892 Data Sheet
Chapter 10 DC and AC Operating Conditions
10.5.19 10Base-T: Jabber Timing
Table 10-26 lists the significant time periods for the 10Base-T jabber. The time periods consist of timings of
signals on the following pins: TXEN, COL, and TP_TX (that is, the TP_TXP and TP_TXN pins). Figure
10-19 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 10-26. 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
21 21 31 ms
315 324 325 ms
Figure 10-19. 10Base-T Jabber Timing Diagram
TXEN
t1
TP_TX
t2
COL
ICS1892, Rev. D, 2/26/01
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
142
February 26, 2001