ICS1893AFILFT datasheet(95/137 Pages) RENESAS

номер детали	ICS1893AFILFT

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

PDF	137 Pages

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производитель	RENESAS [Renesas Technology Corp]

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Chapter 8

Management Register Set

ICS1893AF, Rev. D 10/26/04

October, 2004

ICS1893AF Data Sheet - Release

8.13.8

Link Loss Inhibit (bit 18.1)

The Link Loss Inhibit bit allows an STA to prevent the ICS1893AF from dropping the link in 10Base-T mode.

When an STA sets this bit to logic:

• Zero, the state machine behaves normally and the link status is based on the signaling detected Twisted-

Pair Receiver inputs.

• One, the ICS1893AF 10Base-T Link Integrity Test state machine is forced into the ‘Link Passed’ state

regardless of the Twisted-Pair Receiver input conditions.

8.13.9

Squelch Inhibit (bit 18.0)

The Squelch Inhibit bit allows an STA to control the ICS1893AF Squelch Detection in 10Base-T mode.

When an STA sets this bit to logic:

• Zero, before the ICS1893AF can establish a valid link, the ICS1893AF must receive valid 10Base-T

data.

• One, before the ICS1893AF can establish a valid link, the ICS1893AF must receive both valid 10Base-T

data followed by an IDL.

ICS1893AFILFT датащи(PDF) 95 Page - Renesas Technology Corp