ICS1893YI-10T IDT, Integrated Device Technology Inc, ICS1893YI-10T Datasheet - Page 57
![no-image](/images/manufacturer_photos/0/3/324/idt__integrated_device_technology_inc_sml.jpg)
ICS1893YI-10T
Manufacturer Part Number
ICS1893YI-10T
Description
PHYCEIVER LOW PWR 3.3V 64-TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
PHYceiver™r
Type
PHY Transceiverr
Datasheet
1.ICS1893Y-10.pdf
(150 pages)
Specifications of ICS1893YI-10T
Protocol
MII
Voltage - Supply
3.14 V ~ 3.47 V
Mounting Type
Surface Mount
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Drivers/receivers
-
Other names
1893YI-10T
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ICS1893YI-10T
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
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6.5.11 10Base-T Operation: Twisted-Pair Transmitter
6.5.12 10Base-T Operation: Twisted-Pair Receiver
6.5.13 10Base-T Operation: Auto Polarity Correction
6.5.14 10Base-T Operation: Isolation Transformer
ICS1893Y-10 Rev F 1/20/04
The 10Base-T Twisted-Pair Transmitter is functionally similar to the 100Base-TX Twisted-Pair Transmitter.
The primary differences are in the data rate and signaling, as specified in the ISO/IEC specifications. For
more information, see
The 10Base-T Twisted-Pair Receiver is functionally similar the 100Base-TX Twisted-Pair Receiver. The
primary differences are in the data rate and signaling, as specified in the ISO/IEC specifications. For more
information, see
The ICS1893Y-10 can sense and then automatically correct a signal polarity that is reversed on its
Twisted-Pair Receiver inputs. A signal polarity reversal occurs when the input signals on an ICS1893Y-10’s
TP_RXP and TP_RXN pins are crossed or swapped (a problem that can occur during network installation
or wiring).
The ICS1893Y-10 accomplishes reversed signal polarity detection and correction by examining the signal
polarity of the Normal Link Pulses (NLPs). In 10Base-T mode, an ICS1893Y-10 transmits and receives
NLPs when its link is in the Idle state. In 100Base-TX mode, an ICS1893Y-10 transmits and receives NLPs
during Auto-Negotiation. An STA can control this feature using the 10Base-T Operations Register bit 18.3,
the Auto Polarity-Inhibit bit. When this bit is logic:
•
•
When an ICS1893Y-10 detects a reversed signal polarity on its Twisted-Pair Receiver pins and the Auto
Polarity-Inhibit bit is also logic zero (enabled), the ICS1893Y-10 (1) automatically corrects the data stream
and (2) sets its Polarity Reversed bit (bit 18.14) to logic one, to indicate to the STA that this situation exists.
Bit 18.14 is a latching high (LH) bit. (For more information on latching high and latching low bits, see
Section 7.1.4.1, “Latching High Bits”
Note:
The 10Base-T Isolation Transformer operates the same as the 100Base-TX Isolation Transformer. In fact,
in a typical ICS1893Y-10 application they are the same unit. For more information, see
“100Base-TX Operation: Isolation
Zero, the ICS1893Y-10 automatically senses and corrects a reversed or inverted signal polarity on its
Twisted-Pair Receive pins (TP_RXP and TP_RXN).
One, the ICS1893Y-10 disables this feature.
ICS1893Y-10 - Release
The Auto Polarity Correction Function is primarily a 10Base-T operation. However, it is part of the
Twisted-Pair Receiver and is operational during the 100Base-TX auto-negotiation process.
Section 6.4.6, “100Base-TX Operation: Twisted-Pair
Section 6.4.5, “100Base-TX Operation: Twisted-Pair
Copyright © 2004, Integrated Circuit Systems, Inc.
Transformer”.
and
Section 7.1.4.2, “Latching Low
All rights reserved.
57
Receiver”.
Bits”.)
Transmitter”.
Chapter 6 Functional Blocks
Section 6.4.8,
January, 2004
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