GS6151 datasheet(62/77 Pages) SEMTECH

62 / 77 page

GS6151

Final Data Sheet

Rev.4

PDS-060389

August 2015

62 of 77

Semtech

Proprietary & Confidential

www.semtech.com

2Bh

EYE_MON_

CONTROL_

REG_6

RSVD

15:6

Reserved. Do not change.

EYE_MON_CLEAR

5:5

Override value for EYE_MON_PRBS_CLEAR.

Only used when

EYE_MON_FORCE_PRBS_CLEAR = 1.

EYE_MON_FORCE_CLEAR

4:4

01b: Overrides the EYE_MON_CLEAR output

with the PRBS_MON__CLEAR value

Allows host interface to directly control the

PRBS/eye monitor bypassing the

PRBS_MON_CTRL state machines.

EYE_MON_PRBS_CLEAR

3:3

Override value for EYE_MON_PRBS_CLEAR.

Only used when

EYE_MON_FORCE_PRBS_CLEAR = 1.

EYE_MON_PRBS_FORCE_

CLEAR

2:2

01b: Overrides the EYE_MON_PRBS_CLEAR

output with the EYE_MON_PRBS_CLEAR

value

Allows host interface to directly control the

PRBS/eye monitor bypassing the

EYE_MON_CTRL state machines.

EYE_MON_SELECT

1:1

Selects which criteria is used to populate the

eye bitmap.

00b: PRBS7 check

01b: Arbitrary data check

EYE_MON_WINDOW

0:0

Sets which portion of the eye is to be

sampled for manually timed and continuous

scan measurements. Result for the phase is

the lesser count of errors at each

EYE_MON_WINDOW setting.

2Ch

EYE_MON_

STATUS_REG_0

RSVD

15:15

Reserved. Do not change.

EYE_MON_PRBS_STARTING_

PHASE

14:8

Starting (leftmost) phase of

EYE_MON_PRBS_EYE_WIDTH in the most

recent scan. This parameter only applies to

automatic (AUTO_SCAN_START)

measurements.

EYE_MON_PRBS_EYE_WIDTH

7:0

Widest open portion of the eye in the most

recent scan, based on the

EYE_MON_PRBS_ERROR_COUNT indication.

The value of EYE_MON_PRBS_EYE_WIDTH is

the number of contiguous phases with

EYE_MON_PRBS_ERROR_COUNT less than

or equal to

EYE_MON_PRBS_ERROR_THRESHOLD.

This parameter only applies to automatic

(AUTO_SCAN_START) measurements.

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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