ICS1893Y-10LF IDT, Integrated Device Technology Inc, ICS1893Y-10LF Datasheet - Page 72

• Manufacturer Part Number: ICS1893Y-10LF
• Description: PHYCEIVER LOW PWR 3.3V 64-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: PHYceiver™r
• Type: PHY Transceiverr

Specifications of ICS1893Y-10LF

• 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: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -
• Other names: 1893Y-10LF; 800-1935-5; ICS1893Y-10LF

7.3.9 Remote Fault (bit 1.4)
7.3.10 Auto-Negotiation Ability (bit 1.3)
ICS1893Y-10 Rev F 1/20/04
An STA reads bit 1.4 to determine if a Remote Fault exists. The ICS1893Y-10 sets bit 1.4 based on the
Remote Fault bit received from its remote link partner. The ICS1893Y-10 receives the Remote Fault bit as
part of the Link Code Word exchanged during the auto-negotiation process. If the ICS1893Y-10 receives a
Link Code Word from its remote link partner and the Remote Fault bit is set to:
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Bit 1.4 is a latching high status bit. (For more information on latching high and latching low bits, see
7.1.4.1, “Latching High Bits”
Note:
The STA reads bit 1.3 to determine if the ICS1893Y-10 can support the auto-negotiation process. If the
ICS1893Y-10:
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Zero, then the ICS1893Y-10 sets bit 1.4 to logic zero.
One, then the ICS1893Y-10 sets bit 1.4 to logic one. In this case, the remote link partner is reporting the
detection of a fault, which typically occurs when the remote link partner is having a problem with its
receive channel.
Cannot support the auto-negotiation process, it clears bit 1.3 to logic zero.
Can support the auto-negotiation process, it sets bit 1.3 to logic one. (For the ICS1893Y-10, the default
value of bit 1.3 is logic one.)
ICS1893Y-10 Data Sheet - Release
The ICS1893Y-10 has two versions of the Remote Fault bit.
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The operation of both bit 1.4/17.1 and bit 5.13 are in compliance with the IEEE Std 802.3u.
One version of the Remote Fault bit is a latching high version. An STA can access this version
through either Management Register 1 (bit 1.4) or 17 (bit 17.1). This bit 1.4/17.1 is cleared when
an STA reads either of these registers. (Bit 1.4 is identical to bit 17.1 in that they are the same
internal bit.)
Another version of the Remote Fault bit is updated whenever the ICS1893Y-10 receives a new
Link Control Word. An STA can access this version through Management Register 5 (bit 5.13),
which like bits 1.4/17.1, also reports the status of the Remote Fault bit received from the remote
link partner. However, bit 5.13 is not a latching high bit.
Copyright © 2004, Integrated Circuit Systems, Inc.
and
Section 7.1.4.2, “Latching Low
All rights reserved.
72
Bits”.)
Chapter 7 Management Register Set
January, 2004
Section