ICS1893BY-10 Data Sheet - Release
Chapter 7 Management Register Set
7.12.1 Data Rate (bit 17.15)
The Data Rate bit indicates the ‘selected technology’. If the ICS1893BY-10 is in:
• Hardware mode, the value of this bit is determined by the 10/100SEL input pin.
• Software mode, the value of this bit is determined by the Data Rate bit 0.13.
When bit 17.15 is logic:
• Zero, it indicates that 10-MHz operations are selected.
• One, the ICS1893BY-10 is indicating that 100-MHz operations are selected.
Note: This bit does not imply any link status.
7.12.2 Duplex (bit 17.14)
The Duplex bit indicates the ‘selected technology’. If the ICS1893BY-10 is in:
• Hardware mode, the value of this bit is determined by the DPXSEL input pin.
• Software mode, the value of this bit is determined by the Duplex Mode bit 0.8.
When bit 17.14 is logic:
• Zero, it indicates that half-duplex operations are selected.
• One, the ICS1893BY-10 is indicating that full-duplex operations are selected.
Note: This bit does not imply any link status.
7.12.3 Auto-Negotiation Progress Monitor (bits 17.13:11)
The Auto-Negotiation Progress Monitor consists of the Auto-Negotiation Complete bit (bit 17.4) and the
three Auto-Negotiation Monitor bits (bits 17.13:11). The Auto-Negotiation Progress Monitor continually
examines the state of the Auto-Negotiation Process State Machine and reports the status of
Auto-Negotiation using the three Auto-Negotiation Monitor bits. Therefore, the value of these three bits
provides the status of the Auto-Negotiation Process.
These three bits are initialized to logic zero in one of the following ways:
• A reset (see Section 4.1, “Reset Operations”)
• Disabling Auto-Negotiation [see Section 7.2.4, “Auto-Negotiation Enable (bit 0.12)”]
• Restarting Auto-Negotiation [see Section 7.2.7, “Restart Auto-Negotiation (bit 0.9)”]
ICS1893BY-10 Rev A 3/24/04
March, 2004
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
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ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
