Programming Reference

SCPI Instrument Command List

Command

:DIG:PATT:SEGM[1234]:LENG

Long

:DIGital[:STIMulus]:PATTern:SEGMent[1234]:LENGth

Form

Set & Query

Parameter

Numeric

*RST value

32, 0, 0, 0 (segment 1 = 32, segments 2, 3, and 4 = 0)

Specified Limits

0 to 65504

Description

Use this command to set up the number of bits within a segment. If a

 

segment is set to a length of 0, the segment will be skipped.

 

Restrictions:

•At least one segment’s length has to be > 0.

•The overall length of the pattern has to be <= 65504 and >= two times segment length resolution.

•If at least one segment is used to generate a PRBS, the overall pattern length has to be <= 32768.

•The segment length has a resolution that depends on the current set frequency/period.

•The segment at the start of a counted loop has a minimum length of 2 times the resolution.

 

 

 

Segment Length Resolution

 

 

Pulse Period

(length must be multiple of ...)

 

 

 

 

 

 

 

< 3ns

16

 

 

 

3ns ... < 6ns

8

 

 

 

6ns ... < 12ns

4

 

 

 

12ns ... < 24ns

2

 

 

 

>= 24ns

1

 

NOTE

 

 

 

Every change of a segment length will cause the unused pattern data to

 

be overwritten (no undo!).

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Agilent Technologies Agilent 81130A 400, 660MHz manual 32, 0, 0, 0 segment 1 = 32, segments 2, 3, and 4 =, Restrictions