PCI-2515 User's Guide
Functional Details
25
Figure 4-10. Optimal debounce time for trigger after stable mode
Timer outputs
Two 16-bit timer outputs are built into every 3000 series board. Each timer is capable of generating a different
square wave with a programmable frequency in the range of 16 Hz to 1 MHz.
Figure 4-11. Typical PCI-2515 timer channel
Example: Timer outputs
Timer outputs are programmable square waves. The period of the square wave can be as short as 1 us or as long
as 65535 µs. See
for some examples.
Table 4-3. Timer output frequency examples
Divisor
Timer output frequency
1 1
MHz
100 10
kHz
1000 1
kHz
10000 100
Hz
65535 15.259
Hz
The two timer outputs can generate different square waves. The timer outputs can be updated asynchronously at
any time.
Multiple PCI-2515s per PC
PCI-2515 features can be replicated up to four times, as up to four boards can be installed in a single host PC.
The serial number on each PCI-2515 distinguishes one from another. When multiple PCI-2515s are installed,
they can be operated synchronously. This is done by designating one PCI-2515 as the master. The other slave
PCI-2515s are synchronized to the master by the pacer clock, which is externally routed to the designated slave
boards.
Summary of Contents for PCI-2515
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