GS3590 datasheet(102/118 Pages) SEMTECH

102 / 118 page

GS3590

Final Data Sheet Rev.4



PDS-061414 September 2017

102 of 118

Semtech

Proprietary & Confidential

www.semtech.com

PRBS_CHK_

CTRL

RSVD

15:9

R/W

Reserved—do not modify.

CTRL_PRBS_CHECK_



TIMED_CONT_B

8R/W

0 = Selects continuous PRBS check

mode



1 = Selects timed PRBS check mode

RSVD

7:1

R/W

Reserved—do not modify.

CTRL_PRBS_CHECK_



START

0R/W

Set to 1 by host to start a timed

operation.

Set to 0 by host after completion or

abort of the operation (by the device

due to LOL) to tell the device that PRBS

result has been read by the host.

See Section 4.5 PRBS Checker for more

details on PRBS checker function.

PRBS_GEN_

CTRL

RSVD

15:10

R/W

Reserved—do not modify.

CTRL_PRBS_GEN_

ENABLE

9R/W

Selects whether the PRBS generator is

enabled or not:

0 = PRBS Generator disabled



1 = PRBS Generator enabled

Note: enabling the PRBS Generator

does not automatically override other

device modes such as auto-sleep,

auto-output-mute, auto-output-disable,

etc. These continue to function

normally. The user/host may need to

adjust those settings to ensure the part

will output the PRBS signal.

CTRL_PRBS_GEN_

SIGNAL_SELECT

8R/W

Select output signal from PRBS

Generator as either PRBS7 or divided

clock (divided version of the PRBS

Generator’s clock source):

0 = clock divider (using ratio set by

CTRL_PRBS_GEN_CLK_DIVIDER)

1 = PRBS7

CTRL_PRBS_GEN_

CLK_SRC

7:6

R/W

Selects clock source for PRBS Generator:

0 = VCO (free running)



1 = Reserved.



2 = Reserved.



3 = Data reference PLL (CDR recovered

clock)

Table 5-3: Control Register Descriptions (Continued)

Addressh

Name

Parameter Name

Bit

Slice

R/W

Reset

Valueh

Description

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