Concepts
Segment Import and Export Language
Agilent 81250 Parallel Bit Error Ratio Tester, Programming Reference, March 2006
331
Clipping
A supplied vector that is too long will be clipped on its left side until it
is of the correct length. For example, using a vector width of 10,
xxxx000000001x would be clipped to 000000001x.
Parameter Segments
Parameter segments allow the input of parameter variables into the
Agilent 81250 System. The data part of a parameter segment consists
of a string. The string consists of one or more name-parameter pairs
enclosed by parentheses. The string and the name-parameter pairs
compare to the rules of SCPI expressions.
There are three data segment types.
• Memory segments
• PRBS segments
• PRWS segments
• SFI-5 segments
Predefined Parameter Names
For the three segment types the following predefined parameter
names and values are valid:
Predefined Para-
meter Names
Memory Segments PRBS Segments
PRWS Segments
SFI-5 Segments
_Type
(MEMORY)
(PRBS)
(PRWS)
(SFI5)
_Rotating
not applicable
[n/a]
( )
( )
( )
_Polynom
n/a
(“2^5-1”)...(“2^15-1”)
a
(“2^5-1”)...(“2^15-1”)
a
("2^7-1"), ("2^11-1"),
("2^15-1"), ("2^23-1"),
("2^31-1")
_Logic
n/a
(NORMAL) or
(INVERTED)
(NORMAL) or
(INVERTED)
(NORMAL) or
(INVERTED)
_PRxSType
n/a
(PURE) or
(ERRORED) or
(DENSITY) or
(EXTENDED)
(PURE) or
(ERRORED) or
(DENSITY) or
(EXTENDED)
(PURE)
_FramingBytes
n/a
n/a
n/a
32 bit binary-string
enclosed in ’()’
_ExpansionHeader
n/a
n/a
n/a
32 bit binary-string
enclosed in ’()’
_Errors
[when (ERRORED) is
selected]
n/a
(0)...(max length of
selected PRxS)
(0)...(max length of
selected PRxS)
n/a
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