Re c-2, Timing and digital i/o – National Instruments AT E Series User Manual

Page 159

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Appendix C

Common Questions

© National Instruments Corporation

C-7

AT E Series User Manual

Figure C-2. Comparing Interchannel Delay and Scan Interval

Timing and Digital I/O

What types of triggering can be implemented in hardware on my
AT E Series device?

Digital triggering is supported by hardware on every AT E Series MIO
device. In addition, the AT-MIO-16E-1, AT-MIO-16E-2, AT-MIO-64E-3,
AT-MIO-16XE-10, and AT-AI-16XE-10 support analog triggering in
hardware.

What added functionality does the DAQ-STC make possible in
contrast to the Am9513?

The DAQ-STC incorporates much more than just 10 Am9513-style
counters within one chip. In fact, the DAQ-STC has the complexity of more
than 24 chips. The DAQ-STC makes possible PFI lines, analog triggering,
selectable logic level, and frequency shift keying. The DAQ-STC also
makes buffered operations possible, such as direct up/down control, single
or pulse train generation, equivalent time sampling, buffered period, and
buffered semiperiod measurement.

What is the difference in timebases between the Am9513 counter/timer
and the DAQ-STC?

The DAQ-STC-based MIO devices have a 20 MHz timebase. The
Am9513-based MIO devices have a 1 MHz or 5 MHz timebase.

Channel 0

Channel 1

Interchannel Delay

Scan Interval

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