Timing i/o, Triggers digital trigger – National Instruments PCI-6023E User Manual
Page 90
Appendix A
Specifications
PCI-6023E/6024E/6025E User Manual
A-8
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National Instruments Corporation
PB<0..7> .................................................Input (High-Z),
100 k
Ω
pull up to
+
5V
DC
PC<0..7> .................................................Input (High-Z),
100 k
Ω
pull up to
+
5V
DC
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