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Appendix E: Functional Operation Summary
AWG2021 User Manual
EĆ9
This block comprises the sequence memory that stores the contents of sequence
control, the counters that read out the contents of that memory, and output the
actual waveform memory addresses.
Table EĆ1: Sequence File (XXX.SEQ)
File Name Repetition Count
........... .....
AAA.WFM 3
BBB.WFM 16
........... .....
For a sequence file, such as that shown in Table E-1, here is what is actually
stored in sequence memory.
AAA.WFM actual addresses
AAA.WFM data length
looping counter value: 3
BBB.WFM actual addresses
BBB.WFM data length
looping counter value: 16
The sequence memory capacity is in 8 Kbyte steps for handling even complex
waveforms.
The AAA.WFM actual addresses are loaded into the address counter, the
AAA.WFM data length is loaded into the length counter, and the looping counter
value is loaded into the looping counter.
The address and length counters operate with the clock signal from the clock
divider frequency divided by 8 (because the waveform memory is partitioned
into 8 banks, this circuit uses a
1
@
8
clock).
When the value set in the looping counter is reached, the sequence memory
address counter is incremented and the contents of the next step are read.
When the burst count is set, that value is set in the burst counter and output the
required number of times.
Figure E-9 shows the relationship between sequence memory and waveform
memory.
Sequence Control