Copyright © 2020
Alazar Technologies Inc.
ATS9353 User Manual
57
Traditional AutoDMA
In order to acquire both pre-trigger and post-trigger data in a dual-ported
memory environment, users can use Traditional AutoDMA.
Figure 7 - Traditional AutoDMA Transfers
Data is returned to the user in buffers, where each buffer can contain from
1 to 8192 records (triggers). This number is called RecordsPerBuffer.
While Traditional AutoDMA can acquire data to PC host memory at the maximum
sustained transfer rate of the motherboard, a BUFFER_OVERFLOW can occur if
more than 512 triggers occur in very rapid succession, even if all the on-board
memory has not been used up.
ATS9353 features a high-performance memory management firmware that
allows much faster data throughput in Traditional mode than previous
generation digitizers.