Sequencer Mode
DTG5078 & DTG5274 & DTG5334 Data Timing Generator User Manual 2
1-85
Sequencer Mode
The sequencer runs sequences that you have created using the Sequence window.
Two sequencer modes are available: Hardware and Software Sequencer.
Hardware Sequencer implements sequence output by controlling the hardware’s
sequencer with software.
Software Sequencer deploys the sequence definition in pattern memory by means
of software without using the hardware’s sequencer. This enables the Software
Sequencer to meet two purposes:
Restricting the minimum block length
Enabling the output of patterns without the limit of the Block size granularity
Expanding the nesting level of subsequence up to 5 levels
Therefore, there are restrictions on the operation and functions that may vary in
state during execution of an instruction such as Event Jump. Table 1-26
summarizes the differences between the two sequencers:
Table 1-26: Differences between Hardware and Software Sequencers
Hardware Sequence
Software Sequencer
Limit of minimum
block size
Applied (usually, 240 words/channel
for DTG5078, or 960 words/channel
for DTG5274 and DTG5334)
Not applied
Block size
granularity
Applied for DTG5274 and DTG5334
Not applied
Nesting level of
subsequence
1 level only
Up to 5 levels
Jump
Not limited
Disabled
Go to
Not limited
Disabled (You can specify the
destination of Go To only on the last
line in the main sequence.)
Trigger Wait
Not limited
Disabled (You can specify this only on
the first line in the main sequence.)
Infinite Loop
Not limited
Disabled (You can specify this only on
the last line in the main sequence.)
Restrictions on
use of pattern
memory
Not applied
Because all the sequences are
deployed in pattern memory, a
memory overflow error may occur
with an excessive loop count.
Содержание DTG5078
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Страница 10: ...Table of Contents iv DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 19: ...Reference...
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Страница 24: ...Operating Modes 1 4 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 34: ...Data Structure 1 14 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 58: ...Pattern Edit 1 38 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 88: ...Timing Parameters 1 68 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 100: ...DC Output 1 80 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 120: ...Jitter Generation 1 100 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 126: ...DTG5000 Configuration Utility 1 106 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 146: ...Pulse Generator mode 1 126 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 150: ...Offline mode 1 130 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 176: ...Diagnostics and Calibration 1 156 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 177: ...Appendices...
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Страница 186: ...Appendix B System Recovery B 4 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Страница 189: ...Index...
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Страница 196: ...Index Index 6 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...