Appendix A Specifications for VXI-MIO-64XE-10
National Instruments Corporation
A-15
VXI-MIO Series User Manual
Timing I/O
Number of channels .......................... 2 up/down counter/timers,
1 frequency scaler
Resolution
Counter/timers ............................ 24 bits
Frequency scaler ......................... 4 bits
Compatibility .................................... TTL/CMOS
Base clocks available
Counter/timers ............................ 20 MHz, 100 kHz
Frequency scaler ......................... 10 MHz, 100 kHz
Base clock accuracy ..........................
±
0.01%
Max source frequency ....................... 20 MHz
Min source pulse duration ................ 10 ns, edge-detect mode
Min gate pulse duration .................... 10 ns, edge-detect mode
Data transfers .................................... DMA, interrupts,
programmed I/O
Triggers
Analog Trigger
Source ............................................... ACH<0..63>, PFI0/TRIG1
Level .................................................
±
Fullscale, internal;
±
10 V, external
Slope ................................................. Positive or negative
(software selectable)
Resolution ......................................... 12 bits, 1 in 4,096
Hysteresis.......................................... Programmable
Bandwidth (-3 dB)............................. 255 kHz internal,
4 MHz external
