Agilent Technologies J-BERT N4903, User Manual

Page: 29 / 434

This identifies standard and alternating patterns. Standard patterns
have a value of 1; alternating patterns have a value of 2. Any other value
is not valid.
Syntax:
Count=<1 | 2>
This is the length of the pattern in bits. For a standard pattern of 128
bits, for example, the value is 128. For an alternating pattern, it is the
length of one of the patterns only.
The "Data" tag identifies the start of the pattern data itself. For standard
patterns, there is only one "Data" tag. Alternating patterns require two
"Data" tags. Note that the actual data starts on the
line after the tag.
Syntax:
Data=<CR/LF><data contents>
•
In dual format, each character represents one bit-only the numbers
'1' and '0' are allowed.
•
In hex or text format, each character represents four bits-only the
characters '0' to '9' and 'A' to 'F' are allowed (not case-sensitive).
•
In binary format, each character represents eight bits-all ASCII
characters are allowed.
Example:
'X' in binary format or '88' in hex or text format produce the same bit
sequence as 10001000 in dual format.
In hex or text format, the data must be separated by one white space.
The white space can be a tab, a space, or a new line.
In hex or text format: For pattern lengths that are not multiples of 8
bits , the data has to be padded to provide the correct number of hex
characters. The extra bits are ignored.
ASCII Pattern Files Examples
Version=EPA 2.0
Format=Hex
Description=This is a simple standard pattern
Count=1
Length=128
Data=
01 02 03 04 10 20 40 80
ff 00 ff 00 ff 00 ff 00
Setting up Patterns
2
Agilent J-BERT N4903 High-Performance Serial BERT 29
Count
Length
Data
Standard Pattern in Text