GS3590 datasheet(40/118 Pages) SEMTECH

tên linh kiện	GS3590

Giải thích chi tiết về linh kiện	Bidirectional 3G-SDI Re-timing Adaptive Cable Equalizer/Cable Driver

PDF	118 Pages

Scroll/Zoom	100%

nhà sản xuất	SEMTECH [Semtech Corporation]

Trang chủ	http://www.semtech.com

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40 / 118 page

GS3590

Final Data Sheet Rev.4



PDS-061414 September 2017

40 of 118

Semtech

Proprietary & Confidential

www.semtech.com

Figure 4-10: Shape-Scan Flow Diagram

Host determines Eye Width and Eye Height by reading from

the following 4 registers:

le = STAT_EYE_SHAPE_LEFT_EDGE_PHASE

re = STAT_EYE_SHAPE_RIGHT_EDGE_PHASE

pe =STAT_EYE_SHAPE_POS_EDGE_OFFSET

ne =STAT_EYE_SHAPE_NEG_EDGE_OFFSET

if pe > ne:

EyeHeight = (256 + ne - pe)

else:

EyeHeight = (ne - pe)

if le > re:

EyeWidtht = (128 + re - le)

else:

EyeWidtht = (re - le)

Host reads scan status from

STAT_EYE_MON_STATUS

Status

1 or 0

Host Resets Eye Scanner for new scan by

setting CTRL_EYE_MON_START = 0

Or power down by setting

CTRL_EYE_MON_POWER_CTRL = 0

Scan Failed

Reset Eye Scanner

Run Shape Scan

Shape Scan

Complete

Host powers up eye monitor and starts

Shape Scan by setting:

CTRL_EYE_MON_POWER_CTRL = 1

CTRL_EYE_MON_START = 1

Please Note the Following:

- While the Eye Monitor is

powered-up, the Cable Equalizer

input only has partial adaptation

enabled

- Status = STAT_EYE_MON_STATUS

Note: the host can write

CTRL_EYE_MON_POWER_CTRL = 1 and

CTRL_EYE_MON_START = 1 in the

same GSPI write (i.e. at the

same time). It is not necessary to set

the power up first.

Status = 0?

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