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Chapter 7
Counters
80 MHz Source Mode
In 80 MHz source mode, the device synchronizes signals on the rising edge of the source, and
counts on the following rising edge of the source, as shown in Figure 7-35.
Figure 7-35.
80 MHz Source Mode
Other Internal Source Mode
In other internal source mode, the device synchronizes signals on the falling edge of the source,
and counts on the following rising edge of the source, as shown in Figure 7-36.
Figure 7-36.
Other Internal Source Mode
External Source Mode
In external source mode, the device generates a delayed Source signal by delaying the Source
signal by several nanoseconds. The device synchronizes signals on the rising edge of the delayed
Source signal, and counts on the following rising edge of the source, as shown in Figure 7-37.
Figure 7-37.
External Source Mode
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Summary of Contents for PCI-6281
Page 1: ...PCI 6281...
