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ATS9360 User Manual
Triggered Streaming AsyncDMA
Triggered Streaming AutoDMA is virtually the same as
Continuous mode, except the data transfer across the bus is
held off until a trigger event has been detected.
Triggered Streaming AutoDMA buffers do not include
headers, so it is not possible to get trigger time-stamps.
A BUFFER_OVERFLOW flag is asserted only if the entire on-
board memory is used up.
As in Continuous mode, the amount of data to be captured is
controlled by counting the number of buffers acquired.
Acquisition is stopped by an AbortCapture command.
Triggered Streaming AutoDMA can easily acquire data to PC
host memory at the maximum sustained transfer rate of the
motherboard without causing an overflow.
This is the recommended mode for RF signal recording that
has to be started at a specific time, e.g. based on a GPS
pulse.
