HP 54522A - Page 77

Figure 4-10
Horizontal
Sequential softkey
The total sequential memory is 400k words, and it is allocated depending on
how many points and segments are selected. A single-channel acquisition
can use up to 400k words, while a dual-channel acquisition can use up to
200k words per channel. Acquired data is not lost when the sequential
single-shot mode is exited. Sequential data is retained unless one of the
following events happen:
e Another sequential single-shot capture is performed.
e Failure data is saved to multiple memories using the limit or compare tests.
e Power is cycled.
To allow the scope to power up in the running mode, sequential signal-shot is
turned off when the power is cycled.
Sequential single-shot is only available when the oscilloscope is in the
real-time mode. You may notice that this key is initially displayed in the off
position (sequential single-shot disabled), allowing for normal real-time mode
operation. When the sequential mode is set to on, the # of points (number of
points) and # of segments (number of segments) softkeys are displayed
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