ICS1892 Datasheet, PDF (90/148 Pages) Integrated Circuit Systems – 10Base-T/100Base-TX Integrated PHYceiver

ICS1892 Data Sheet
Chapter 8 Management Register Set
8.12.1 Data Rate (bit 17.15)
The Data Rate bit indicates the ‘selected technology’. If the ICS1892 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 ICS1892 is indicating that 100-MHz operations are selected.
Note: This bit does not imply any link status.
8.12.2 Duplex (bit 17.14)
The Duplex bit indicates the ‘selected technology’. If the ICS1892 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 ICS1892 is indicating that full-duplex operations are selected.
Note: This bit does not imply any link status.
ICS1892, Rev. D, 2/26/01
© 2000-2001, Integrated Circuit Systems, Inc.
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February 26, 2001