Ctr2 Gate Signal; Ctr2 Out Signal - Measurement Computing PCI-DAS6052 User Manual

PCI-DAS6052 User's Guide

CTR2 GATE signal

You can use the CTR2 GATE signal for starting and stopping the counter, saving
counter contents, etc. It is polarity programmable and is available at the CTR2 GATE
pin.
Figure 4-32
Rising Edge Polarity
Falling Edge Polarity

CTR2 OUT signal

This signal is present on the CTR2 OUT pin. The CTR2 OUT signal is the output of one
of the two user's counters in an industry-standard 82C54 chip.
For detailed information on counter operations, please refer to the data sheet on our web
site at www.mccdaq.com/PDFmanuals/82C54.pdf.
Figure 4-33
CTR2 CLK
CTR2 OUT (Mode 2)
CTR2 OUT (Mode 0)
shows the timing requirements for the CTR2 GATE signal.
Figure 4-32. CTR2 GATE Signal Timing
shows the timing of the CTR1 OUT signal for mode 0 and for mode 2.
Figure 4-33. CTR2 OUT Signal Timing
t
w
t = 25 ns minimum
w
TC
4-26
Functional Details