1893BKILF IDT, Integrated Device Technology Inc, 1893BKILF Datasheet - Page 126
1893BKILF
Manufacturer Part Number
1893BKILF
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.1893BKILF.pdf
(138 pages)
Specifications of 1893BKILF
Lead Free Status / RoHS Status
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9.5.17 10Base-T: Heartbeat Timing (SQE)
ICS1893BF, Rev. E, 8/11/09
Table 9-24
The time periods consist of timings of signals on the following pins:
•
•
•
Figure 9-18
Note:
1. For more information on 10Base-T SQE operations, see
2. In 10Base-T mode, one bit time = 100 ns.
Table 9-24. 10Base-T Heartbeat (SQE) Timing
Figure 9-18. 10Base-T Heartbeat (SQE) Timing Diagram
TXEN
TXCLK
COL
Period
Time
TXEN
TXCLK
COL
t1
t2
Test”.
ICS1893BF Data Sheet - Release
COL Heartbeat Assertion Delay from
TXEN De-Assertion
COL Heartbeat Assertion Duration
lists the significant time periods for the 10Base-T heartbeat (that is, the Signal Quality Error).
shows the timing diagram for the time periods.
Parameter
Copyright © 2009, IDT, Inc.
All rights reserved.
t1
126
10Base-T Half Duplex
10Base-T Half Duplex
Conditions
Section 6.5.10, “10Base-T Operation: SQE
t2
Chapter 9 DC and AC Operating Conditions
Min.
–
–
1000
Typ.
850
Max.
1500
1500
August, 2009
Units
ns
ns
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