National Instruments PCI-6023E, PCI-6024E, PCI-6025E Timing I/O, Triggers Digital Trigger

Appendix A Specifications
PCI-6023E/6024E/6025E User Manual A-8
© National Instruments Corporation
PB<0..7>.................................................Input (High-Z),
100 kΩ pull up to +5VDC
PC<0..7>.................................................Input (High-Z),
100 kΩ pull up to +5VDC
Data transfers..........................................Interrupts, programmed I/O
Timing I/O
Number of channels................................2 up/down counter/timers, 1
frequency scaler
Resolution...............................................
Counter/timers.................................24 bits
Frequency scalers............................4 bits
Compatibility..........................................TTL/CMOS
Base clocks available
Counter/timers.................................20 MHz, 100 kHz
Frequency scalers............................10 MHz, 100 kHz
Base clock accuracy................................±0.01%
Max source frequency.............................20 MHz
Min source pulse duration ......................10 ns in edge-detect mode
Min gate pulse duration..........................10 ns in edge-detect mode
Data transfers..........................................DMA, interrupts, programmed
I/O
DMA modes ...........................................Scatter-gather
(Single transfer, demand transfer)
Triggers
Digital Trigger
Compatibility..........................................TTL
Response.................................................Rising or falling edge
PCI.book Page 8 Wednesday, September 16, 1998 9:09 AM