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): 99/152頁
文件大?。?/td> 943K
代理商: 1893YI-10
ICS1893 Rev C 6/6/00
June, 2000
50
Chapter 7
Functional Blocks
ICS1893 Data Sheet - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
7.4.7
100Base-TX Operation: Auto Polarity Correction
The ICS1893 can sense and then automatically correct a signal polarity that is reversed on its Twisted-Pair
Receiver inputs. A signal polarity reversal occurs when the input signals on the TP_RXP and TP_RXN pins
are crossed or swapped (a problem that can occur during network installation or wiring). This function is
primarily a 10Base-T function, however, it is also active during Auto-Negotiation. For more information on
the 10Base-T Auto Polarity Correction, see Section 7.5.13, “10Base-T Operation: Auto Polarity Correction”
7.4.8
100Base-TX Operation: Isolation Transformer
The ICS1893 interfaces with a medium through isolation transformers. The PHY requires two isolation
transformers: one for its Twisted-Pair Transmitter and the other for its Twisted-Pair Receiver. These
isolation transformers provide both physical isolation as well as the means for coupling a signal between
the ICS1893 and the medium for both 10Base-T and 100Base-TX operations.
Note:
For information on isolation transformers (also referred to as magnetic modules), see Section 6.5,
“Twisted-Pair Interface”.
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