GS12341 datasheet(86/109 Pages) SEMTECH

86 / 109 page

GS12341

Final Data Sheet

Rev.1

PDS-061928

August 2019

86 of 109

Semtech

Proprietary & Confidential

www.semtech.com

OUTPUT_

PARAM_

TD_12G_1

RSVD

15:14

R/W

Reserved - do not modify.

CFG_OUTPUT1_TD_



12G_DRIVER_SWING

13:8

R/W

Configure the 12G rate amplitude on

trace driver output1 (DDO1). amplitude.



Range: 0 to 40d.

Adjust the differential trace driver

amplitude. The default value produces

an amplitude of 400mVppd

Note: When per rate settings are

chosen, the trace driver 12G settings are

applied for all rates when the Reclocker

is unlocked



(see CTRL_OUTPUT1_TRDR_PER_RATE

for per rate setting).

RSVD

7:0

R/W

Reserved - do not modify.

OUTPUT_

PARAM_

TD_12G_2

RSVD

15:13

R/W

Reserved - do not modify.

CFG_OUTPUT0_TD_



12G_PREEMPH_WIDTH

12:8

R/W

Configure the 12G 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.



Note: When per rate settings are

chosen, the trace driver 12G settings are

applied for all rates when the Reclocker

is unlocked



(see CTRL_OUTPUT0_TRDR_PER_RATE

for per rate setting)

RSVD

R/W

Reserved - do not modify.

CFG_OUTPUT0_TD_



12G_PREEMPH_



PWRDWN

6R/W

Power down the 12G 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).

Note: When per rate settings are

chosen, the trace driver 12G settings are

applied for all rates when the Reclocker

is unlocked



(see CTRL_OUTPUT0_TRDR_PER_RATE

for per rate setting).

Table 5-3: Control Register Descriptions (Continued)

Addressh

Name

Parameter Name

Bit

Slice

R/W

Reset

Valueh

Description

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