1893AFLF IDT, 1893AFLF Datasheet - Page 97

• Manufacturer Part Number: 1893AFLF
• Description: Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
• Manufacturer: IDT
• Type: Integrated PHY Transceiverr

Specifications of 1893AFLF

• Rohs: yes
• Product: Ethernet Transceivers
• Data Rate: 10 Mb/s, 100 Mb/s
• Supply Voltage - Max: 3.47 V
• Supply Voltage - Min: 3.14 V
• Maximum Operating Temperature: + 70 C
• Package / Case: SSOP-48
• Ethernet Connection Type: 100Base-TX, 10Base-T
• Maximum Supply Current: 160 mA
• Minimum Operating Temperature: 0 C
• Standard Supported: 802.3
• Part # Aliases: ICS1893AFLF

8.14.1 Node/Repeater Configuration (bit 19.15)
8.14.2 Hardware/Software Priority Status (bit 19.14)
8.14.3 Remote Fault (bit 19.13)
8.14.4 ICS Reserved (bits 19.12:8)
8.14.5 Twisted Pair Tri-State Enable, TPTRI (bit 19.7)
8.14.6 ICS Reserved (bits 19.6:1)
8.14.7 Automatic 100Base-TX Power-Down (bit 19.0)
ICS1893AF, Rev. D 10/26/04
The Node/Repeater Configuration bit indicates the NOD/MODE.
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The Hardware/Software Priority Status bit indicates the SW mode.
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The ISO/IEC specification defines bit 5.13 as the Remote Fault bit, and bit 19.13 is functionally identical to
bit 5.13. The Remote Fault bit is set based on the Link Control Word received from the remote link partner.
When this bit is a logic:
•
•
See
The ICS1893AF provides a Twisted Pair Tri-State Enable bit. This bit forces the TP_TXP and TP_TXN
signals to a high-impedance state. When this bit is set to logic:
•
•
See
The Automatic 100Base-TX Power Down bit provides an STA with the means of enabling the ICS1893AF
to automatically shut down 100Base-TX support functions when 10Base-T operations are being used.
When this bit is set to logic:
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•
Note:
In Node mode:
The (MDIO) register bits control the ICS1893AF configuration.
Zero, it indicates the remote link partner does not detect a Link Fault.
One, it indicates to an STA that the remote link partner detects a Link Fault.
Zero, the Twisted Pair Interface is operational.
One, the Twisted Pair Interface is tri-stated.
Zero, the 100Base-TX Transceiver does not power down automatically in 100Base-TX mode.
One, and the ICS1893AF is operating in 10Base-T mode, the 100Base-TX Transceiver automatically
turns off to reduce the overall power consumption of the ICS1893AF.
– The SQE Test default setting is enabled.
– The Carrier Sense signal (CRS) is asserted in response to either transmit or receive activity.
ICS1893AF Data Sheet - Release
Section 8.11.2, “ICS Reserved (bits
Section 8.11.2, “ICS Reserved (bits
There are other means of powering down the 100Base-TX Transceiver (for example, when the
entire device is isolated using bit 0:10).
Copyright © 2004, Integrated Circuit Systems, Inc.
16.14:11)”, the text for which also applies here.
16.14:11)”, the text for which also applies here.
All rights reserved.
97
Chapter 8 Management Register Set
October, 2004