On an NI-6363 : How many digital samples can be acquired at one go?

Hello,

I'm using a NI-6363 with counter 3 configured for finite pulse generation.

I've created a digital input channel to acquire digital values(on P0.16 and P0.17) with counter3 as the sample clock.

The idea is to achieve acquiring a finite number of digital samples (same as the number of finite pulses generated on counter3).

I am currently trying to understand if I can acquire about 1000 samples (requirement of my application).

The datasheet says the FIFO size for digital input is 255. Does this mean I cannot acquire more than 255 samples at a time?

I tried using large values upto 1000 but no error occurs.

Does this mean the read out values will be correct?

Or im guessing it might be a circular FIFO which gives out the same values upon reading more than 255 values.

Do I need to worry about this 255 limit at all??

Thanks