Agilent Technologies HP 1660E Series User Manual page 186

Using the Pattern Generator
Building Test Vectors and Macros
Data Field
Selecting the data field to the right of the instruction field lets you
insert vector data. ASCII-based data cannot be edited, and ASCII- and
Symbols-based data cannot be autorolled.
Autoroll
The Autoroll field is provided to reduce the number of keystrokes
required to enter data into the sequence or a macro. When a data field
is edited (except in the last vector row), the Autoroll field appears to
the left of the data entry pop-up menu. Autoroll can move from left to
right across the labels on the display with an automatic line feed, or it
can move down a label from vector row to row. When the last vector
row of the sequence is encountered, Autoroll will stop the editing
process, or the Autoroll can be halted at any point in the editing
process by turning the autoroll function off.
Memory Used
The MEMORY USED bar shows in percent how much memory is being
used by the vector sequence entered. It should be noted that Repeat
Loops and User Macros may suddenly increase the amount of memory
used because they are expanded at run time. It is critical to use the
MEMORY USED 'bar to obtain an idea of how much memory will be
needed at run time.
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