Agilent Technologies 1660A Series User Reference page 184

50/100-mhz state, 500-mhz timing logic analyzers
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The Format Menu
Symbols Field
Symbol Located in the Data
Label Field
The Label field identifies the label for which you are specifying symbols.
When you select this field, a selection menu appears that lists all the labels
turned on for that analyzer. Each label has a separate symbol table, so you
can give the same name to symbols defined under different labels. From the
label selection menu, select the label for which you wish to specify symbols.
Base Field
The Base field is used to select the numeric base in which the pattern in the
symbols menu is displayed. If more than 20 channels are assigned to a label,
the Binary option is not offered. As a result, when a symbol is specified as a
range, there is only enough room for 20 bits to be displayed on the screen.
Decide which base you want to work in and choose that option from the
numeric Base pop-up menu.
If you choose the ASCII option, you can see what ASCII characters the
patterns and ranges defined by your symbols represent. ASCII characters
represented by the decimal numbers 0 to 127 (hex 00 to 7F) are offered on
your logic analyzer.
You cannot specify a pattern or range when the base is ASCII. Define the
pattern or range in one of the other bases, then switch to ASCII to see the
ASCII characters.
11–26
Symbol

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