Chapter 3
Hardware Overview
©
National Instruments Corporation
3-5
6711/6713/6715 User Manual
Timing Signal Routing
The DAQ-STC provides a very flexible interface for connecting timing
signals to other devices or external circuitry. The 6711/6713 device uses
the RTSI bus to interconnect timing signals between devices
(PCI/PXI/CompactPCI) and the Programmable Function Input (PFI) pins
on the I/O connector to connect the device to external circuitry. These
connections are designed to enable the 6711/6713 device to both control
and be controlled by other devices and circuits.
There are a total of 13 timing signals internal to the DAQ-STC that you can
control by an external source. You can also control these timing signals
control by signals generated internally to the DAQ-STC, and these
selections are fully software configurable. For example, the signal routing
multiplexer for controlling the UPDATE* signal is shown in Figure 3-3.
Figure 3-3.
UPDATE* Signal Routing
RTSI Trigger <0..6>
PFI<0..9>
UPDATE*
Update Interval Counter TC
GPCTR0_OUT
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