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
TriggersAnalog 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