78Q2120C Просмотр технического описания (PDF) - Teridian Semiconductor Corporation

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78Q2120C

10/100BASE-TX Transceiver

Teridian Semiconductor Corporation 

78Q2120C

10/100BASE-TX

Transceiver

MR19: Transceiver Control

BIT

19.15:12

19.11:10

SYMBOL

RSVD

TXO[1:0]

TYPE

R

R/W

DEFAULT

0100

01

DESCRIPTION

Reserved

Transmit Amplitude Selection: Sets the transmit output amplitude

to account for transmit transformer insertion loss.

00 : Gain set for 0.0dB of insertion loss

01 : Gain set for 0.4dB of insertion loss

10 : Gain set for 0.8dB of insertion loss

19.9:0 RSVD

R

XXXh

11 : Gain set for 1.2dB of insertion loss

Reserved

MR20: Reserved

BIT SYMBOL TYPE DEFAULT DESCRIPTION

20.15:0 Reserved na

XXXXh Reserved

MR21: Reserved

BIT SYMBOL TYPE DEFAULT DESCRIPTION

21.15:0 Reserved na

XXXXh Reserved

MR22: Reserved

BIT SYMBOL TYPE DEFAULT DESCRIPTION

22.15:0 Reserved na

XXXXh Reserved

Page: 19 of 35

© 2009 Teridian Semiconductor Corporation

Rev 1.3

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