ICS1893BF Data Sheet - Release
Chapter 4 Operating Modes Overview
Chapter 4 Operating Modes Overview
The ICS1893BF operating modes are typically controlled from software.
The ICS1893BF register bits are accessible through a standard MII (Media Independent Interface) Serial
Management Port.
The ICS1893BF is configured to support the MAC Interface as a 10M MII or a 100M MII. The protocol on
the Medium Dependent Interface (MDI) can be configured to support either 10M or 100M operations in
either half-duplex or full-duplex modes.
The ICS1893BF is fully compliant with the ISO/IEC 8802-3 standard, as it pertains to both 10Base-T and
100Base-TX operations. The feature-rich ICS1893BF allows easy migration from 10-Mbps to 100-Mbps
operations as well as from systems that require support of both 10M and 100M links.
This chapter is an overview of the following ICS1893BF modes of operation:
• Section 4.1, “Reset Operations”
• Section 4.2, “Power-Down Operations”
• Section 4.3, “Automatic Power-Saving Operations”
• Section 4.4, “Auto-Negotiation Operations”
• Section 4.5, “100Base-TX Operations”
• Section 4.6, “10Base-T Operations”
• Section 4.7, “Half-Duplex and Full-Duplex Operations”
• Section 4.8, “Auto-MDI/MDIX Crossover”
ICS1893BF, Rev. E, 8/11/09
August, 2009
Copyright © 2009, IDT, Inc.
All rights reserved.
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