參數(shù)資料
型號： 1893YI-10
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： DATACOM, INTERFACE CIRCUIT, PQFP64
封裝： 10 X 10 MM, TQFP-64
文件頁數(shù)： 4/152頁
文件大?。?/td> 943K
代理商： 1893YI-10
Chapter 8
Management Register Set
ICS1893 Rev C 6/6/00
June, 2000
101
ICS1893 - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
8.14.1
Node/Repeater Configuration (bit 19.15)
The Node/Repeater Configuration bit directly indicates the state of the NOD/REP input pin. When this bit is
logic:
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.
There are two primary differences between Node mode and Repeater mode.
In Node mode:
– The SQE Test default setting is enabled.
– The Carrier Sense signal (CRS) is asserted in response to either transmit or receive activity.
In Repeater mode:
– The SQE Test default setting is disabled.
– The Carrier Sense signal (CRS) is asserted in response only to receive activity.
8.14.2
Hardware/Software Priority Status (bit 19.14)
The Hardware/Software Priority Status bit directly indicates the state of the HW/SW pin. When this bit is
logic:
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.
8.14.3
Remote Fault (bit 19.13)
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:
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.
8.14.4
ICS Reserved (bits 19.12:8)
See Section 8.11.2, “ICS Reserved (bits 16.14:11)”, the text for which also applies here.
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