GS3140 Datasheet, PDF (31/40 Pages) Semtech Corporation – Multi-Rate Adaptive 3G SDI Equalizer

Table 5-1: Register Descriptions (Continued)
Address
2_h
3_h
Register Name
EQ_CONF_REG_1
EQ_CONF_REG_2
Parameter Name
Bit
Slice
R/W Reset Description
RSVD
SDI_DATA_RATE_VALUE
15:12 RW 0_h Reserved. Do not change.
11:9 RW
When enabled by
FORCE_SDI_DATA_RATE_VALUE.
000_b = Force <MADI rates operation
0_h 001_b = Force MADI rates operation
010_b = Force SD rates operation
011_b = Force HD rates operation
100_b = Force 3G rates operation
Forces the device to operate
FORCE_SDI_DATA_RATE_VALUE 8:8
RW
0_h
assuming incoming signal is at rate
specified by
SDI_DATA_RATE_VALUE.
SQUELCH_THRESHOLD
Squelch Threshold
7:0
RW
FF_h
ED_h - FF_h = No Squelch
0_h - EC_h = See 4.4 Programmable
Squelch Threshold
RSVD
15:8 RW 0_h Reserved. Do not change.
LAUNCH_SWING_
COMPENSATION
Selects the upstream launch swing
7:4
RW
B_h
compensation as described in
Section 4.1.1. Refer to Table 4-2 for
output swing values.
MUTE_OUTPUT_IN_SLEEP
Enables driving outputs in MUTE
3:3 RW 0_h mode when core is in SLEEP, as
explained in Section 4.8.4.
Disables MADI automatic swing
support.
if the MADI signal swing is more
tightly known, the equalizer jitter
MADI_AUTO_SWING_DISABLE 2:2 RW 0_h and reach performance can be
significantly improved by disabling
this mode and using the
LAUNCH_SWING_COMPENSATION
register bits to specify the swing.
RSVD
1:0 RW 0_h Reserved. Do not change.
GS3140
Final Data Sheet
PDS-060939
Rev.1
May 2015
www.semtech.com
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Semtech
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