1893AFILFT IDT, 1893AFILFT Datasheet - Page 50
![no-image](/images/no-image-200.jpg)
1893AFILFT
Manufacturer Part Number
1893AFILFT
Description
Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
Manufacturer
IDT
Datasheet
1.1893AFLF.pdf
(136 pages)
Specifications of 1893AFILFT
Rohs
yes
Part # Aliases
ICS1893AFILFT
- Current page: 50 of 136
- Download datasheet (963Kb)
7.5.9 10Base-T Operation: Jabber
7.5.10 10Base-T Operation: SQE Test
ICS1893AF, Rev D 10/26/04
The ICS1893AF has an ISO/IEC compliant Jabber Detection Function that, when enabled, monitors the
data stream sent to its Twisted-Pair Transmitter to ensure that it does not exceed the 10Base-T Jabber
activation time limit (that is, the maximum transmission time). For more information, see
“10Base-T: Jabber
When the Jabber Detection Function detects that its transmission time exceeds the maximum Jabber
activation time limit and Jabber Detection is enabled, the ICS1893AF asserts its Collision Detect (COL)
signal. During this ISO/IEC specified ‘jabber de-activation time’, the ICS1893AF transmit data stream is
interrupted and prevented from reaching its Twisted-Pair Transmitter. During this time, when interrupting
the data stream and asserting its COL signal, the ICS1893AF transmits Normal Link Pulses and sets its
QuickPoll Detailed Status Register’s Jabber Detected bit (bit 17.2) to logic one. This bit is a latching high
(LH) bit. (For more information on latching high and latching low bits, see
Bits”
The ICS1893AF provides an STA with the ability to disable the Jabber Detection Function using the Jabber
Inhibit bit (bit 18.5 in the 10Base-T Operations Register). Setting bit 18.5 to logic:
•
•
The ICS1893AF has an ISO/IEC compliant Signal Quality Error (SQE) Test Function used exclusively for
10Base-T operations. When enabled, the ICS1893AF performs the SQE Test at the completion of each
transmitted packet (that is, whenever its TX_EN signal transitions from asserted to de-asserted). When the
ICS1893AF executes its SQE Test, it asserts the COL signal to its MAC Interface for a pre-determined time
duration (ISO/IEC specified). [For more information, see
(SQE)”.]
An ICS1893AF SQE Test Function is:
•
•
Note:
1. In 10Base-T mode, a bit time has a typical duration of 100 ns.
2. The SQE Test also has the name 10Base-T Heartbeat. For details on the SQE waveforms, see
Zero (the default) enables the Jabber Detection Function.
One disables the Jabber Detection Function.
Enabled only when all the following conditions are true:
Disabled whenever any of the following are true:
– The ICS1893AF is in node mode.
– The ICS1893AF is in half-duplex mode.
– The ICS1893AF has a valid link.
– The 10Base-T Operations Register’s SQE Test Inhibit bit (bit 18.2) is logic zero (the default).
– The ICS1893AF TX_EN signal has transitioned from asserted (high) to de-asserted (low).
– The ICS1893AF is in Repeater mode.
– The ICS1893AF is in full-duplex mode.
– The ICS1893AF detects a link failure.
– The ICS1893AF SQE Test Inhibit bit (bit 18.2) in the 10Base-T Operations Register is logic one. [This
10.5.17, “10Base-T: Heartbeat Timing
ICS1893AF Data Sheet - Release
and
bit provides the Station Management entity (STA) with the ability to disable the SQE Test function.]
Section 8.1.4.2, “Latching Low
Timing”.
Copyright © 2004, Integrated Circuit Systems, Inc.
Bits”.)
All rights reserved.
(SQE)”.
50
Section 10.5.17, “10Base-T: Heartbeat Timing
Section 8.1.4.1, “Latching High
Chapter 7 Functional Blocks
Section 10.5.18,
October, 2004
Section
Related parts for 1893AFILFT
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ICS1893AFI](/images/manufacturer_photos/0/3/324/idt__integrated_device_technology_inc_tmb.jpg)
Part Number:
Description:
PHYCEIVER LOW PWR 3.3V 48-SSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
![ICS1893AF](/images/manufacturer_photos/0/3/324/idt__integrated_device_technology_inc_tmb.jpg)
Part Number:
Description:
PHYCEIVER LOW PWR 3.3V 48-SSOP
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet:
![1893](/images/no-image3.png)
Part Number:
Description:
#1893 LAMP T-3 1/4 14V 330MA MINIATURE BAYONET BASE
Manufacturer:
EIKO
![1893-10PK](/photos/22/65/226522/4436756_tmb.jpg)
Part Number:
Description:
LAMP, INCANDESCENT, BAYONET, 14V
Manufacturer:
CHICAGO MINIATURE LIGHTING, LLC
Datasheet:
![IDT TEMP SENSOR SAMPLE KIT](/images/manufacturer_photos/0/3/333/integrated_device_technology__idt__tmb.jpg)
Part Number:
Description:
IDT TS3000AND TSE2002 SENSORS SAMPLE PACK OFFER
Manufacturer:
Integrated Device Technology (Idt)
![IDT-00/E](/photos/21/57/215774/4550311_tmb.jpg)
Part Number:
Description:
THERMOCOUPLE DIGITAL PANEL METER
Manufacturer:
NEWPORT ELECTRONICS
![IDT%4841CP](/images/manufacturer_photos/0/3/334/integrated_device_technology__inc__tmb.jpg)
Part Number:
Description:
High-performance CMOS bus interface latches
Manufacturer:
Integrated Device Technology, Inc.
![IDT-3030](/images/no-image3.png)
Part Number:
Description:
Accessories Connectors and Cables
Manufacturer:
ADVANTECH [Advantech Co., Ltd.]
Datasheet:
![IDT-5101](/images/no-image3.png)
Part Number:
Description:
Accessories 5.25 Industrial Disk Tray
Manufacturer:
ADVANTECH [Advantech Co., Ltd.]
Datasheet:
![IDT74FCT162244ATPA](/images/manufacturer_photos/0/3/324/idt__integrated_device_technology_inc_tmb.jpg)
Part Number:
Description:
IDT PART
Manufacturer:
IDT, Integrated Device Technology Inc
Datasheet: