ICS1893 datasheet(50/152 Pages) ICST

номер детали	ICS1893

подробное описание детали	3.3-V 10Base-T/100Base-TX Integrated PHYceiver?

PDF	152 Pages

Scroll/Zoom	100%

производитель	ICST [Integrated Circuit Systems]

домашняя страница	http://www.icst.com

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50 / 152 page

ICS1893 Rev C 6/6/00

June, 2000

Chapter 7

Functional Blocks

ICS1893 Data Sheet - Release

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”.

ICS1893 датащи(PDF) 50 Page - Integrated Circuit Systems