User`s guide

36  Operation Theorem
4.1.4 A/D Data Buffering
On the ACL-8316, the AD data will store in the A/D data register. While A/D
conversion, the register keeps the previous conversion result. The data will
be updated when the end of the conversion. The A/D data register can keep
the newest conversion data until the ending of the next conversion. The A/D
data register can store only one data and the data can be real time operated.
The A/D data can also be buffered in the FIFO memory when the FIFO is
enable. But it is not suitable to use FIFO if the application needs real-time
A/D data operation. The FIFO size on ACL-8316 is 1K samples. If the
sampling rate is 100 kHz, the FIFO can buffer 10 ms analog signal. After the
FIFO is full, the lasting coming data will be lost. The software must read out
the FIFO data before it becomes full.