Appendix A Specifications for VXI-MIO-64XE-10National Instruments CorporationA-15VXI-MIO Series User ManualTiming I/ONumber of channels .......................... 2 up/down counter/timers,1 frequency scalerResolutionCounter/timers ............................ 24 bitsFrequency scaler ......................... 4 bitsCompatibility .................................... TTL/CMOSBase clocks availableCounter/timers ............................ 20 MHz, 100 kHzFrequency scaler ......................... 10 MHz, 100 kHzBase clock accuracy .......................... ±0.01%Max source frequency ....................... 20 MHzMin source pulse duration ................ 10 ns, edge-detect modeMin gate pulse duration .................... 10 ns, edge-detect modeData transfers .................................... DMA, interrupts,programmed I/OTriggersAnalog TriggerSource ............................................... ACH<0..63>, PFI0/TRIG1Level ................................................. ± Fullscale, internal;±10 V, externalSlope ................................................. Positive or negative(software selectable)Resolution ......................................... 12 bits, 1 in 4,096Hysteresis.......................................... ProgrammableBandwidth (-3 dB)............................. 255 kHz internal,4 MHz external
