ICS1893 Integrated Circuit Systems, ICS1893 Datasheet - Page 101

• Manufacturer Part Number: ICS1893
• Description: 3.3-V 10Base-T/100Base-TX Integrated PHYceiver
• Manufacturer: Integrated Circuit Systems

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)
ICS1893 Rev C 6/6/00
The Node/Repeater Configuration bit directly indicates the state of the NOD/REP input pin. When this bit is
logic:
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•
There are two primary differences between Node mode and Repeater mode.
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•
The Hardware/Software Priority Status bit directly indicates the state of the HW/SW pin. When this bit is
logic:
•
•
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:
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•
See
Zero, the NOD/REP input pin is pulled down, which instructs the operation code to operate in Node
mode.
One, the NOD/REP input pin is pulled up, which instructs the ICS1893 to operate in Repeater mode.
In Node mode:
In Repeater mode:
Zero, the hardware pins have priority over the (software) register bits for establishing the ICS1893
configuration.
One, the (software) register bits have priority over the hardware pins for establishing the ICS1893
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.
– The SQE Test default setting is enabled.
– The Carrier Sense signal (CRS) is asserted in response to either transmit or receive activity.
– The SQE Test default setting is disabled.
– The Carrier Sense signal (CRS) is asserted in response only to receive activity.
ICS1893 - Release
Section 8.11.2, “ ICS Reserved (bits 16.14:11)”
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
101
, the text for which also applies here.
Chapter 8 Management Register Set
June, 2000