VT6103 datasheet(20/46 Pages) VIA

20 / 46 page

VT6103 - Fast Ethernet 10 / 100 PHY / Transceiver

Revision 1.1 April 15, 2002

-14-

Technologies, Inc.

We Connect

Offset 26 (1Ah) – PHY Test Configuration 1 (0012h) ...RW

PHY

Capability

Set

Baseline

Wander

Correction Circuit Correction Amount

Disable ...................................................default

Enable

14-9 Baseline Wander Correction Circuit Value

PHY

Capability

Read

Baseline

Wander

Correction Circuit Correction Amount

Disable ...................................................default

Enable

Baseline

Wander

Upper

Limit

Overflow

Indication

.......................................................... LH

Disable ...................................................default

Enable

Baseline

Wander

Lower

Limit

Overflow

Indication

.......................................................... LH

Disable ...................................................default

Enable

5-4

FTxD10, FTxData10En Clock Phase Selection

......................................... default = 01b

Drive Kill Pattern Mode

Disable ...................................................default

Enable

Asynchronous Baseline Wander Correction

Disable ...................................................default

Enable

1-0

Asynchronous Baseline Wander Correction Peak

Detection Threshold ........................... default = 10h

Offset 27 (1Bh) – PHY Test Configuration 2 (C500h) .. RW

10 Squelch Signals Debounce

0Disable

Enable................................................... default

10 Squelch Signals Go Idle State Debounce

0Disable

Enable................................................... default

10 Squelch Signals Idle Condition Select ..... def = 0

NLP Pulse Length

100 ns .................................................... default

150 ns

Force Transmit Data

Disable................................................... default

Enable

NLP Watchdog

0Disable

Enable (10 will go Link Fail if too many

NLP’s received in NLPMinTime at Link Up

Status)................................................... default

Set Rx21-23 MIB Counters to FFFEh

Disable................................................... default

Enable.......................................... Self Clearing

10 Stop Receive Data if Squelch Signals Go Idle

State

0Disable

Enable................................................... default

Drive Overshoot Pattern for 100 Characterization

Disable................................................... default

Enable

Fast Drive NLP Pattern for 10 Characterization

Disable................................................... default

Enable

F Direct Drive (See Bits 0-4)

Disable................................................... default

Enable

Replacement Value for TXER if FDirectDrive

(bit-5) is Set

3-0

Replacement Value for TXD if FDirectDrive (bit-

5) is Set

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