GS6151 datasheet(57/77 Pages) SEMTECH

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GS6151

Final Data Sheet

Rev.4

PDS-060389

August 2015

57 of 77

Semtech

Proprietary & Confidential

www.semtech.com

1Fh

DRIVER_CONTROL_

REG_6

DDO1_SWING_BYPASS

15:12

Differential swing (amplitude) control for

unlocked signals output on DDO1 (when

CDR is operating in BYPASS mode). For

details refer to Section 4.5.3.

Also applies when the device is not locked.

Takes precedence over rate-specific swing

controls

DDO1_SWING_MUTE

11:8

Differential static amplitude control for

DDO1 when the output is muted. For details

refer to Section 4.5.3.

Takes precedence over rate-specific swing

controls and bypass swing control

DDO1_SWING_5G94

7:4

Differential swing (amplitude) control for

5.94Gb/s (6G UHD-SDI) signals output on

DDO1. For details refer to Section 4.5.3.

DDO1_SWING_2G97

3:0

Differential swing (amplitude) control for

2.97Gb/s (3Gb/s SDI) signals output on

DDO1. For details refer to Section 4.5.3.

20h

CDR_BYPASS

RSVD

15:2

Reserved. Do not change.

MANUAL_BYPASS

1:1

Used to manually bypass the retiming block

in the CDR.

00b: Re-timer not bypassed

01b: Re-timer bypassed

The assertion of MANUAL_BYPASS takes

precedence irrespective of the setting of

AUTO_BYPASS

0:0

Selects between automatic and manual

bypass of the retiming block when the CDR

is not locked.

00b: Auto-Bypass is disabled

01b: Auto-Bypass is enabled

Even if AUTO_BYPASS is asserted, the

assertion of MANUAL_BYPASS will still cause

the re-timer to be bypassed.

21h

PD_CONTROL

RSVD

15:11

Reserved. Do not change.

OUTPUT_POLARITY_INVERT

10:10

Signal polarity invert at output of

CDR/bypass.

00b: Not inverted

01b: Inverted

RSVD

9:6

Reserved. Do not change.

RSVD

5:1

Reserved. Do not change.

INPUT_POLARITY_INVERT

0:0

Signal polarity invert at input to CDR/bypass.

00b: Not inverted

01b: Inverted

Table 5-1: Register Descriptions - Standard Address Space (Continued)

Address Register Name

Parameter Name

Bit

Slice

R/W

Reset

Value

Description

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