GS3590 datasheet(87/118 Pages) SEMTECH

87 / 118 page

GS3590

Final Data Sheet Rev.4



PDS-061414 September 2017

87 of 118

Semtech

Proprietary & Confidential

www.semtech.com

MADI_AUTO_

SWING_MODE

RSVD

15:1

R/W

Reserved—do not modify.

MADI_AUTO_

SWING_MODE

0R/W

In Cable Equalizer mode, configure SDIO

for full MADI upstream source

compliance.

0 = Disable



1 = Enable

When enabled, all MADI compliant

source amplitudes are supported at a

reduced cable length.

When the upstream source amplitude is

known to be 800mV ±10%, disabling

this mode doubles the maximum MADI

cable reach.

1A to 1D

RSVD

15:0

R/W

Reserved—do not modify.

TREQ0_

INPUT_BOOST

RSVD

15:5

R/W

Reserved—do not modify.

CFG_TREQ0_BOOST

4:1

R/W

Trace Equalizer boost setting for TEQ

(Trace Equalizer):

0 = Bypass equalization stage

1 to 8 = 1 to 17dB of insertion loss at

1.485GHz (see Figure 4-2)

Bypass is the minimum boost setting;

boost 8 is maximum boost setting.

CFG_TREQ0_CD_



BOOST

0R/W

Selects boost level applied to DDI input

signal for carrier detection function

only.

0 = Sets to boost 8 (See Figure 4-2)



1 = Use CFG_TREQ0_BOOST setting

TREQ0_CD_

HYSTERESIS

RSVD

15:8

R/W

Reserved—do not modify.

CFG_TREQ0_CD_



ASSERT_THRESH

7:4

R/W

Sets assert threshold for trace equalizer

carrier detect.

0 to15d, where 0 is minimum threshold

and 15d is maximum threshold (see

Figure 4-3).

CFG_TREQ0_CD_DEAS

SERT_THRESH

3:0

R/W

Sets de-assert threshold for Trace

Equalizer carrier detect

0 to15d, where 0 is minimum threshold

and 15d is maximum threshold (see

Figure 4-3).

Table 5-3: Control Register Descriptions (Continued)

Addressh

Name

Parameter Name

Bit

Slice

R/W

Reset

Valueh

Description

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