The 6024E has a 20 MHz timebase on board. The counters on the 6024 work
with two load registers for the number of timebase ticks the output
should be high or low. The minimum value for both load registers is two
timebase ticks. Thus the maximum counter output frequency is 20 MHz / 4
= 5 MHz.
I hope that helps,
Jochen Klier
National Instruments Germany
