GS12341 datasheet(80/109 Pages) SEMTECH

80 / 109 page

GS12341

Final Data Sheet

Rev.1

PDS-061928

August 2019

80 of 109

Semtech

Proprietary & Confidential

www.semtech.com

OUTPUT_

PARAM_TD_

HD_2

RSVD

15:13

R/W

Reserved - do not modify.

CFG_OUTPUT0_TD_



HD_PREEMPH_WIDTH

12:8

R/W

Configure the HD rate pre-emphasis

pulse width on trace driver output0

(DDO0).



Range: 0 to 15d.

Adjust the pre-emphasis pulse width to

better match the channel loss response

shape.

RSVD

R/W

Reserved - do not modify.

CFG_OUTPUT0_TD_



HD_PREEMPH_



PWRDWN

6R/W

Power down the HD rate pre-emphasis

on trace driver output0 (DDO0)



0 = Pre-emphasis driver powered up

(pre-emphasis enabled).



1 = Pre-emphasis driver powered down

(pre-emphasis disabled).

CFG_OUTPUT0_TD_



HD_PREEMPH_AMPL

5:0

R/W

Configure the HD rate pre-emphasis

amplitude on trace driver output0

(DDO0).



Range: 0 to 50d.

Adjust the pre-emphasis pulse

amplitude to better match the channel

loss at Nyquist.

OUTPUT_

PARAM_TD_

HD_3

RSVD

15:14

R/W

Reserved - do not modify.

CFG_OUTPUT0_TD_



HD_DRIVER_SWING

13:8

R/W

Configure the HD rate amplitude on

trace driver output0 (DDO0). amplitude.



Range: 0 to 40d.

Adjust the differential trace driver

amplitude. The default value produces

an amplitude of 400mVppd.

RSVD

7:0

R/W

Reserved - do not modify.

Table 5-3: Control Register Descriptions (Continued)

Addressh

Name

Parameter Name

Bit

Slice

R/W

Reset

Valueh

Description

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