ICS1893AFT IDT, Integrated Device Technology Inc, ICS1893AFT Datasheet - Page 130

• Manufacturer Part Number: ICS1893AFT
• Description: PHYCEIVER LOW PWR 3.3V 48-SSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: PHYceiver™r
• Type: PHY Transceiverr

Specifications of ICS1893AFT

• Protocol: MII
• Voltage - Supply: 3.14 V ~ 3.47 V
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Drivers/receivers: -
• Other names: 1893AFT; 800-1920-2; ICS1893AFT

10.5.17 10Base-T: Heartbeat Timing (SQE)
ICS1893AF, Rev D 10/26/04
Table 10-24
The time periods consist of timings of signals on the following pins:
•
•
•
Figure 10-18
Note:
1. For more information on 10Base-T SQE operations, see
2. In 10Base-T mode, one bit time = 100 ns.
Table 10-24. 10Base-T Heartbeat (SQE) Timing
Figure 10-18. 10Base-T Heartbeat (SQE) Timing Diagram
TXEN
TXCLK
COL
Period
Time
TXEN
TXCLK
COL
t1
t2
Test”.
ICS1893AF 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 © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
t1
130
10Base-T Half Duplex
10Base-T Half Duplex
Conditions
Section 7.5.10, “10Base-T Operation: SQE
t2
Chapter 10 DC and AC Operating Conditions
Min.
–
–
1000
Typ.
850
Max.
1500
1500
October, 2004
Units
ns
ns