Agilent Technologies J-BERT N4903B Manual de Serviço descarregar pdf (Página 253)

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101

SENSe[1]:PATTern:ZSUBstitut[:ZRUN] MINimum | MAXimum | <NR3>

SENSe[1]:PATTern:ZSUBstitut[:ZRUN]?

<NR3>

ZSUB patterns are PRBN patterns, where a number of bits are replaced by zeroes.

The zero substitution starts after the longest runs of zeroes in the pattern (for

example, for PRBN 2^7, after the run of 7 zeroes). This command allows you to

define the length of the run of zeroes. For example, to produce 10 zeroes in a PRBN

2^7 pattern, three additional bits after the run of 7 zeroes must be replaced by

zeroes. The bit after the run of zeroes (the closing bit) is set to 1.

The following figure shows an example, where a run of 10 zeroes is inserted into

a PRBN 2^7 pattern.

This command is only active when a ZSUB pattern has been selected (see “SENSe

[1]:PATTern[:SELect][?] ” on page 250).

The minimum value is the PRBN value - 1. The maximum value is length of the

pattern - 1. So, for a PRBN 2^7 pattern, the minimum value is 6, and the maximum

value is 127 (2^7 - 1).

SENSe[1]:PATTern:UPATtern Subnode

This subnode has the following SCPI structure:

SENSe[1]

:PATTern

:UPATtern<n>

:DATA[?]

:IDATa[?]

[:LENGth][?]

:LABel[?]

:USE[?]

This subnode has the following commands:

SCPI Command Reference 5

Agilent J-BERT N4903B High-Performance Serial BERT 253

Syntax

Return Range

Description

Range

1 2 ... 248 249 250 251 252 253 254 255 256 257 258 ... 405 406

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